[Botany • 2026] Pseuduvaria sirindhorniana (Annonaceae) • Phylogenetic and Morphological Evidence supports the Recognition of A New Species from southern Thailand

Pseuduvaria sirindhorniana Yoosukkee, Damth. & Chaowasku, 

in Yoosukkee, Damthongdee, Aongyong, Baka, Sama-ae et Chaowasku, 2026. 

รุจิสิริน  ||  DOI: doi.org/10.3767/blumea.2026.70.03.02  

 facebook.com/TanawatChaowasku

Abstract

Based on the molecular phylogenetic analyses of six plastid DNA regions (matK and rbcL exons; trnL intron; atpB-rbcL, psbA-trnH and trnL-trnF intergenic spacers) and including 57 samples of Pseuduvaria, as well as thorough morphological studies, Pseuduvaria sirindhorniana (Annonaceae, Miliuseae) is described and illustrated here as a new species from Narathiwat, southern Thailand. The new species belongs to a major clade that also includes P. fragrans, P. gardneri, P. glossopetala, P. kwangtungensis, P. multiovulata and P. phuyensis. Pseuduvaria sirindhorniana is morphologically most similar to P. glossopetala, but differs by having basally connate (vs. free) sepals, larger petals, elliptic-ovate (vs. obovate) outer petals, inner petals that are only connivent at the apex (vs. connivent from the base to ± the midpoint and at the apex), with openings formed from the base (vs. openings formed from ± the midpoint). Pseuduvaria kwangtungensis turns out to be a putative sister of the new species, but the two are morphologically dissimilar in several traits, such as leaf base, inner petal appearance and glands on the inner side of the inner petals.

Keywords: Magnoliids; Malmeoideae; Miliuseae; Pseuduvaria; Systematics; Taxonomy; Thailand

Pseuduvaria sirindhorniana Yoosukkee, Damth. & Chaowasku.
 a. Inflorescences with flowers, from living material of Aongyong & Baka 55.
b. Infructescence with monocarps, from living material of Aongyong & Baka 56.

— Photographs by A. Baka.

 Holotype of Pseuduvaria sirindhorniana Yoosukkee, Damth. & Chaowasku (Aongyong & Baka 55, CMUB).

Pseuduvaria sirindhorniana Yoosukkee, Damth. & Chaowasku sp. nov. 

 Pseuduvaria sirindhorniana differs from the morphologically most similar species, P. glossopetala, by having basally connate (vs. free) sepals, larger petals, elliptic-ovate (vs. obovate) outer petals, inner petals that are only connivent at the apex (vs. connivent at the apex and from the base to ± the midpoint), with openings formed from the base (vs. openings formed from ± the midpoint). 

Etymology — The specific epithet honours H.R.H. Princess Maha Chakri Sirindhorn of Thailand, who has continuously supported the study of plant taxonomy in Thailand and worldwide, on the auspicious occasion of her 72nd (6th cycle) birthday anniversary (2 April 2027). She has also been instrumental in establishing the Plant Genetic Conservation Project under the Royal Initiative (RSPG), which aims to train personnel and develop plant genetic resources for the conservation of plant diversity, with benefits extending to farmers and related sectors of the country.

Vernacular name — Ruchi Sirin (รุจิสิริน).

  C. Yoosukkee, Anissara Damthongdee, Kithisak Aongyong Chanthamrong, Abdulromea Baka, I. Sama-ae and Tanawat Chaowasku. 2026. Molecular Phylogenetic and Morphological Evidence supports the Recognition of Pseuduvaria sirindhorniana (Annonaceae), A New Species from southern Thailand.   Blumea - Biodiversity, Evolution and Biogeography of Plants. DOI: doi.org/10.3767/blumea.2026.70.03.02 [May 26, 2026]

 facebook.com/TanawatChaowasku/posts/4464220417200895

[Invertebrate • 2025] Alloscopus sago & A. jantapasoae • Two New Species of the Genus Alloscopus Börner, 1906 (Collembola: Orchesellidae: Heteromurinae) from southern Thailand

Alloscopus sago Jantarit & Manee, sp. nov.  
   A. jantapasoae Jantarit, Nilsai & Manee, sp. nov.

in Jantarit, Manee, Nilsai, Mitpuangchon et Pimsai, 2025.

DOI: doi.org/10.3897/zookeys.1245.148100 

Abstract 

Two new species of Alloscopus Börner (Orchesellidae: Heteromurinae) are discovered and described from southern Thailand. The first species, Alloscopus sago Jantarit & Manee, sp. nov. was found in a sago palm forest (Metroxylon sagu Rottb.), a true sago palm species native to Southeast Asia and typically located in lowland freshwater swamps in Phatthalung Province. The second species, A. jantapasoae Jantarit, Nilsai & Manee, sp. nov. was sampled from a dark zone within a cave environment in Trang Province. Both species are characterized by the absence of eyes and mucronal spines, the presence of a PAO, two rows of smooth chaetae on the manubrium, and dental spines. However, they differ in several morphological features, including the number of macrochaetae on the ‘A’ series of the head, Th. II and Abd. IV; labial basis chaetotaxy; the presence of smooth chaetae on tibiotarsi; the number of chaetae on both the anterior and posterior ventral tube; and the number of the inter-teeth on the claw. The discovery of these two new species increases the total number of Alloscopus species recorded in Thailand to six species with a total of 17 recognized species globally. An updated key to the world species of Alloscopus is also provided.   

Key words: Cave, chaetotaxy, Entomobryoidea, sago palm, taxonomy

Alloscopus sago Jantarit & Manee, sp. nov.   

 A. jantapasoae Jantarit, Nilsai & Manee, sp. nov.

 Sopark Jantarit, Nongnapat Manee, Areeruk Nilsai, Natrada Mitpuangchon and Awatsaya Pimsai. 2025. Two New Species of the Genus Alloscopus Börner, 1906 (Collembola, Orchesellidae, Heteromurinae) from southern Thailand. ZooKeys. 1245: 357-381. DOI: doi.org/10.3897/zookeys.1245.148100 

 

 

[Botany • 2026] Asplenium paucipinnatum (Aspleniaceae) • A New fern Species from southern Thailand, based on morphological and molecular data

Asplenium paucipinnatum  K.W.Xu, Li Bing Zhang & Pollawatn, 

in Xu, Pollawatn, L. Zhang, Zhou et L.-B. Zhang, 2026.   

DOI: doi.org/10.3897/phytokeys.272.173645

Abstract

Asplenium paucipinnatum, a new fern species from Nakhon Si Thammarat, Thailand, is described. Morphologically, it closely resembles A. micantifrons in having short-creeping and radial rhizome steles, 1-pinnate laminae, deeply incised pinnae on the basiscopic margin, and sori arranged in two rows close to the costae. However, A. paucipinnatum is readily distinguished by having fewer lateral pinnae (< 14 pairs), obliquely rhombic pinnae with acute apices and obtuse marginal teeth, contrasting the more numerous pinnae (> 15 pairs), lanceolate pinnae with acuminate apices, and acute teeth in A. micantifrons. Phylogenetic analyses based on multiple plastid DNA regions (atpB, rbcL, rps4, rps4-trnS, trnL, and trnL-F) support A. paucipinnatum as a distinct lineage, forming a sister relationship with a clade containing A. lepturus and A. contiguum. The combination of morphological and molecular evidence supports the recognition of this new taxon. Ecological notes, geographic distribution, and a comparison with related species are also provided.

Key words: Asplenium aethiopicum clade, fern phylogeny, Southeast Asian fern flora, taxonomy

Asplenium paucipinnatum. A. Habit; B. Abaxial view of lamina; C. Abaxial view of pinnae showing the venation on the pinnae; D. Showing the lamina apices deeply pinnatifid and becoming gradually decrescent upwards; E. Adaxial view of Pinnae at middle portion of the laminae; F. Short-creeping rhizome; G. Rhizome scales.

(Voucher specimen: Li Bing Zhang, Liang Zhang, R. Pollawatn & X. M. Zhou 10976).

Asplenium paucipinnatum K.W.Xu, Li Bing Zhang & Pollawatn, sp. nov.

 

Description. Asplenium paucipinnatum resembles A. micantifrons (Tuyama) Tuyama ex H.Ohba by its short creeping and radial rhizomes, 1-pinnate laminae, pinnae deeply incised at basiscopic side of margin, and sori borne in 2 rows closely set along to the costa, but the former has lateral pinnae fewer than 14 pairs, pinnae oblique rhombic, pinna apex acute, and marginal teeth obtuse. In contrast, A. micantifrons has lateral pinnae more than 15 pairs, pinnae lanceolate, pinna apex acuminate, and marginal teeth acute.

Ke-Wang Xu, Rossarin Pollawatn, Liang Zhang, Xin-Mao Zhou and Li-Bing Zhang. 2026. Asplenium paucipinnatum (Aspleniaceae), A New fern Species from southern Thailand, based on morphological and molecular data. PhytoKeys. 272: 159-167. DOI: doi.org/10.3897/phytokeys.272.173645 [02 Apr 2026]

[Phycology • 2026] Lobophora lewmanomontiae, L. ogawae, ... • A Survey along the East Coast of Thailand reveals High Diversity in the Genus Lobophora (Dictyotales: Phaeophyceae): with the Description of Four New Species

 

Lobophora lewmanomontiae A. M. Klomjit, J. Praiboon & N. Muangmai sp. nov.
 Lobophora ogawae A. M. Klomjit, C. W. Vieira & N. Muangmai sp. nov. 
Lobophora thiemmedhii A. M. Klomjit, C. W. Vieira & N. Muangmai sp. nov. 
Lobophora velasquezii A. M. Klomjit, S. G. A. Draisma & N. Muangmai sp. nov. 

in Klomjit, Draisma, Praiboon, Jurejan, Sutti, Sun, Vieira et Muangmai, 2026. 

 DOI: doi.org/10.4490/algae.2026.41.2.2  

   facebook.com/FisheriesKaset

 ABSTRACT

Lobophora (Dictyotales, Phaeophyceae) is an ecologically important seaweed genus in tropical and subtropical marine ecosystems. This alga exhibits cryptic diversity and morphological plasticity, which require taxonomic delineations that primarily depend on DNA analyses, complemented by morphological and ecological data. Species diversity and distribution within Southeast Asia remain understudied compared to well-documented regions such as the Caribbean and the western Pacific. This study provides a comprehensive assessment of the genus Lobophora along the east coast of Thailand, integrating DNA-based surveys with morphological analyses. Extensive sampling across the Gulf of Thailand revealed 14 well-supported monophyletic clades of Lobophora. Among these, we described four new species (L. lewmanomontiae sp. nov., L. ogawae sp. nov., L. thiemmedhii sp. nov., and L. velasquezii sp. nov.) and reported three new national records (L. abscondita, L. henae, and L. quangtriensis), thereby bringing the Thai total to 21 species. When combined with previous records, 30 species have now been recorded from Southeast Asia, with 12 of which are endemic to the region. This study also emphasizes the importance of extensive sampling across broader areas, which enhances our understanding of biogeographic distributions and their implications for coastal ecosystem management.

Key words: DNA barcoding; Gulf of Thailand; macroalgae; Phaeophyceae; phylogeny; species diversity; taxonomy

In situ photographs of four new Lobophora species from east coast of Thailand.
(A) Lobophora lewmanomontiae sp. nov. (THNHM-P-2021-0314). (B) Lobophora ogawae sp. nov. (THNHM-P-2021-0310).
(C) Lobophora thiemmedhii sp. nov. (THNHM-P-2022-02470). (D) Lobophora velasquezii sp. nov. (THNHM-P-2022-0237).

Scale bars represent: A, 3 cm; B, 1 cm; C & D, 2 cm.

Lobophora lewmanomontiae A. M. Klomjit, J. Praiboon & N. Muangmai sp. nov. 

Lobophora ogawae A. M. Klomjit, C. W. Vieira & N. Muangmai sp. nov.

Lobophora thiemmedhii A. M. Klomjit, C. W. Vieira & N. Muangmai sp. nov.

Lobophora velasquezii A. M. Klomjit, S. G. A. Draisma & N. Muangmai sp. nov.

Ex situ photographs, transversal (Top) and longitudinal (Bottom) section on holotype specimens.
(A–C) Lobophora lewmanomontiae sp. nov.
(D–F) Lobophora ogawae sp. nov.
(G–I) Lobophora thiemmedhii sp. nov.
(J–L) Lobophora velasquezii sp. nov.

Scale bars represent: A, 2 cm; D & J, 0.5 cm; G, 1 cm.

Distribution pattern of Lobophora species along the east coast of Thailand. The black lines on the map represent the geographic borders of Thai province. The marine territories of the provinces where Lobophora species were identified, are highlighted in colors other than blue. The black dots indicated specific locations where Lobophora samples were collected. The numbers in parentheses next to the species names indicate the number of samples identified in each province. The table on the right lists the Lobophora species found in each province, with circles indicating species presence. Provinces ranked left to right by geographic location starting from east to west and then north to south.

Anirut Klomjit, Stefano G. A. Draisma, Jantana Praiboon, Narapat Jurejan, Suttikarn Sutti, Zhongmin Sun, Christophe Vieira and Narongrit Muangmai. 2026. A Survey along the East Coast of Thailand reveals High Diversity in the Genus Lobophora (Dictyotales, Phaeophyceae): with the Description of Four New Species. Algae. 41(1); 77-94. DOI: doi.org/10.4490/algae.2026.41.2.2 [March 15, 2026] 

  facebook.com/FisheriesKaset/posts/1535757728557328

[Botany • 2026] Nepenthes siamensis (Nepenthaceae) • A New Species of Section Montanae from Surat Thani Province, Peninsular Thailand

 

Nepenthes siamensis Nuanlaong 

in Nuanlaong, Yodthammarat, Chiwan, Laewan et Pohsap, 2026.

หม้อแกงสยาม  ||  DOI: doi.org/10.1007/s12225-025-10336-2

 facebook.com/TonSunyaN

Drawn by Chayan Yodthammarat

 

Summary

Nepenthes siamensis, a new species from Khlong Phanom National Park in southern Thailand, is described. This species, closely related to others in section Montanae, stands out due to its distinct inflorescence characteristics, including bracts present on both male and female flowers, and unique pitcher morphology. It is found approximately 650 km north of the most similar species based on morphological comparison, N. sanguinea and N. thai, which are also both terrestrial and lower montane. It shares characters with them, such as a climbing habit and oblong to subspathulate leaves with 2 – 3 longitudinal nerves on each side of the midrib. This discovery significantly extends the known range of section Montanae.

 Key Words: Carnivorous plants, pitcher plant, taxonomy

Nepenthes siamensis.
A stem with leaves and upper pitchers; B lower pitcher; C male inflorescence; D female flowers; E male flowers; F lower surface of lid with upper part of peristome; G upper surface of lid; H – J nectar glands.

From live specimens. Drawn by Chayan Yodthammarat

Nepenthes siamensis Nuanlaong sp. nov. 

Type: Thailand, Surat Thani Province, Phanom Distr., Khlong Phanom National Park, ...

Recognition. This species differs from Nepenthes thai in leaf base margins clasping the stem for ½ of the circumference, not decurrent (vs clasping stem ¾ – ⅚ of circumference, bases decurrent down the stem for 3 – 12 mm in N. thai); lower pitcher cylindrical in lower ¾ of length, infundibular in upper ¼ (vs ovoid-cylindrical); spur filiform (vs branched); bracts present on all flowers at the bases of pedicels in the male inflorescence and on the lower half of the pedicel in the female inflorescence (vs bract absent).

  Sunya Nuanlaong, Chayan Yodthammarat, Purin Chiwan, Teerayut Laewan and Suphansiri Pohsap. 2026. Nepenthes siamensis (Nepenthaceae), A New Species of Section Montanae from Surat Thani Province, Peninsular Thailand. Kew Bulletin. DOI: doi.org/10.1007/s12225-025-10336-2 [27 February 2026]

 facebook.com/TonSunyaN/posts/10231032761911754

[Herpetology • 2026] Gekko dam • A New dark-colored Tokay Gecko (Squamata: Gekkonidae) from the Thai-Malay border

Gekko (Gekko) dam

 Meesook, Jindamad, Toprai, Chotjuckdikul, Supmee, Suppapan, Donbundit, Sumontha & Pauwels, 2026

 

ตุ๊กแกดำ | Black Tokay Gecko  ||  DOI: doi.org/10.11646/zootaxa.5757.2.2 

   facebook.com: R I M 

Abstract

We describe Gekko dam sp. nov. based on type specimens from a limestone hill in Palian District, Trang Province, southern peninsular Thailand. The new species is also found in Satun Province, southern peninsular Thailand, and in Perlis State, northwestern Peninsular Malaysia. A member of the subgenus Gekko, it differs from all currently recognized Gekko species by the following combination of morphological characters and pattern: maximal known snout-vent length of 149.1 mm, lack of contact between nostrils and rostral, 21–24 interorbital scales between supraciliaries, 72–83 scale rows around midbody, 12–14 dorsal tubercle rows at midbody, 26–28 ventral scale rows at midbody, 22 precloacal pores in males, two postcloacal tubercles on each side of the base of the tail, 14–17 subdigital lamellae on 1st toe and 19–21 on 4th toe, a Y-shaped mark on head, white spots on head, dark grey to black dorsal background with four regular bands of contrasting white spots on dorsum between limb insertions, throat and venter white with orange patches, and a copper iris.

Reptilia, Gekko dam sp. nov., taxonomy, karst, limestone, Thai-Malay Peninsula

Gekko dam sp. nov.

ตุ๊กแกดำ

Etymology. The specific epithet dam is a noun in apposition, invariable, based on the Thai noun or adjective ดำ ("dam"), meaning black, black color, or dark, in reference to the dark color of the new species. 

We suggest the following common names: ตุ๊กแกดำ (Took-kay dam; Thai); Black Tokay Gecko (English), Gecko tokay noir (French), and Zwarte tokeh gekko (Dutch).

Worawitoo MEESOOK, Tanasak JINDAMAD, Nittaya TOPRAI, Natthaphat CHOTJUCKDIKUL, Verakiat SUPMEE, Juthamas SUPPAPAN, Nattasuda DONBUNDIT, Montri SUMONTHA and Olivier S. G. PAUWELS. 2026. Gekko (Gekko) dam, A New dark-colored Tokay Gecko from the Thai-Malay border (Squamata, Gekkonidae).  Zootaxa. 5757(2); 123-143. DOI: doi.org/10.11646/zootaxa.5757.2.2 [2026-02-04]

  facebook.com/100088301342746/posts/879566848330019

Researchgate.net/publication/400442860_Gekko_dam_a_new_dark-colored_tokay_gecko_from_the_Thai-Malay_border

[Botany • 2025] Tarenna khoonmengiana (Rubiaceae) • A New Species from Peninsular Malaysia and Peninsular Thailand

Tarenna khoonmengiana Junhao Chen & Y.H.Cheah,

in Chen et Cheah, 2025. 

 Sandakania. 27; 

A new species, Tarenna khoonmengiana (Rubiaceae), from Peninsular Malaysia and Peninsular Thailand is described and illustrated here. Notes on the ecology, etymology and morphological distinctions from similar species are provided here.

Tarenna khoonmengiana Junhao Chen & Y.H.Cheah, sp. nov.

Similar to Tarenna stellulata (Hook.f.) Ridl. and Tarenna insularis (Ridl.) Ridl. in having corolla lobe tips that are divergent in the bud, but differing from the former in the glabrous lower leaf lamina surface that is smooth to the touch (vs minute erect hairy lower leaf lamina surface that is rough to the touch), glabrous (vs conspicuously ciliate) corolla lobe margins and acute (vs awl-like) corolla lobe apex, and differing from the latter in the broadly triangular (vs linear) calyx lobes 0.5–1 mm long (vs 1.5–3 mm long) and glabrous (vs densely short-puberulent) corolla outer surface in bud.

Junhao Chen & Y.H. Cheah. 2025. Tarenna khoonmengiana (Rubiaceae), A New Species from Peninsular Malaysia and Peninsular Thailand. Sandakania. 27; 49-58. 

 

[Mollusca • 2025] Discartemon sirindhornae • A New Discartemon Species (Eupulmonata: Streptaxidae) from Peninsular Thailand

 

Discartemon sirindhornae Artsamart & Siriboon,

in Artsamart, Rungruangdejwattana, Camngam, Raksasin, Sutcharit, Jirapatrasilp et Siriboon, 2025.   

หอยนักล่าสิรินธร  ||  DOI: doi.org/10.58837/tnh.25.8.267107  

 facebook.com/BioCHULA

Abstract

Discartemon sirindhornae Artsamart & Siriboon, sp. nov. is described and illustrated based on specimens collected from Chumphon Province in Peninsular Thailand. The new species possesses a flattened shell with a slightly convex spire, a weakly angular last whorl, and an intermediately expanded whorl. The apertural dentition consists of one parietal lamella, one ridge-like and one small lower palatal, one small basal, and one small columellar lamella. The penis is long, slender and twisted distally, with penial hooks separated by elevated longitudinal folds. The current study advances knowledge of the streptaxid land snail species in Thailand and emphasizes the value of limestone habitats for preserving biodiversity.

Keywords: carnivorous snail, systematics, genitalia, limestone, endemic species

Discartemon sirindhornae

หอยนักล่าสิรินธร 

 

Palod Artsamart, Pongpisit Rungruangdejwattana, Chalinee Camngam, Chutathip Raksasin, Chirasak Sutcharit, Parin Jirapatrasilp and Thanit Siriboon. 2025. Discovery of A New Discartemon Species (Eupulmonata: Streptaxidae) from Peninsular Thailand.  Tropical Natural History. Suppl. 8; 380-389. DOI: doi.org/10.58837/tnh.25.8.267107 [2025-10-20]

  facebook.com/BioCHULA/posts/1348182277097491

[Entomology • 2025] Tenomaculosa hexapunctata • A New monotypic Genus of the Tribe Tenoderini (Mantodea: Mantidae: Tenoderinae) from the southern Thailand

Tenomaculosa hexapunctata  

Tarapipattanakun & Unnahachote, 2025

 

DOI: doi.org/10.25221/fee.538.1 

 facebook.com: P. Tarapipattanakun

A new genus and species Tenomaculosa hexapunctata gen. et sp. n. of praying mantis (Mantodea) is described from the southern Thailand. The new genus distinguished from related genera by the presence of six distinct black spots on the internal surfaces of the profemur and, in lateral view, by widened posterior part of the pronotum. Additionally, unidentified species of the genus Mesopteryx Saussure, 1870 is found in Thailand for the first time. A key to the genera of the subtribe Tenoderina in the Oriental region is also given.

Key words: Mantodea, praying mantises, Mantidae, Tenoderinae, Tenoderini, Oriental region.

Tenomaculosa hexapunctata gen. et sp. n.:
 A – holotype male in dorsal view; B – head in frontal view; C – inner side of prothoracic leg.

Fore legs of the subtribe Tenoderina genera:
A – Mesopteryx sp.; B – Tenodera cf. fasciata; C – Tenodera aridifolia; D – Tenospilota nova;
E, F – Tenomaculosa hexapunctata gen. et sp. n.

Tenomaculosa hexapunctata gen. et sp. n., male genitalia and terminalia.
A – ventral view of left phallomere; B – ventral view of ventral phallomere; C – ventral view of right phallomere; D – supraanal plate and cerci; E – subgenital plate.

Genus Tenomaculosa Tarapipattanakun et Unnahachote, gen. n.

DIFFERENTIAL DIAGNOSIS. Tenomaculosa gen. n. can be distinguished from Tenospilota by the pronotum being thicker towards the end in lateral view (in Tenospilota, the thickness is equal throughout the entire pronotum). The internal surfaces of the profemur presents six distinct black spots (only one large black spot is present around the tibial spur groove). The forewings without any pattern (with dark patches present in the discoidal areas), and the hindwings are transparent (with five black horizontal stripes patterns on the discoidal area).

ETYMOLOGY. The genus name is a combination of the word “Teno” referring to the related genus Tenodera, which shares some characteristics, and the Latin word “maculosa”, meaning spotted, in reference to the black spots on the profemur. 

Tenomaculosa hexapunctata Tarapipattanakun et Unnahachote, sp. n. 

ETYMOLOGY. The specific name “hexapunctata” is a combination of the word “hexa” meaning six, and the word “punctata” which is a Latin word meaning points. The name refers to the six black points on the inner side of the profemur of a new species.     

 Tarapipattanakun P. and Unnahachote T. 2025. A New monotypic Genus of the Tribe Tenoderini (Mantodea: Mantidae: Tenoderinae) from the southern Thailand. Far Eastern Entomologist. 538: 1-11. DOI: doi.org/10.25221/fee.538.1

https://www.biosoil.ru/FEE/Issues/2025 

 facebook.com/pannphathn.tharaphiphathnkul/posts/1349561093332018

  

[Diplopoda • 2025] Rhopalomeris sirindhornae • A New Species of the Pill Millipede Genus Rhopalomeris Verhoeff, 1906 (Diplopoda: Glomerida) from Southern Thailand

 

Rhopalomeris sirindhornae 

Sapparojpattana, Jeratthitikul & Likhitrakarn, 2025 

กิ้งกือกระสุนพระรามเจ้าฟ้า  ||   Tropical Natural History. Supplement 8

  facebook.com/EkgachaiJeratthitikul

Abstract

A new species of pill millipede, Rhopalomeris sirindhornae sp. nov., is described from southern Thailand based on morphological characteristics and genetic barcoding. This species is distinguished from its congeners by light yellowish body with pale pink lateral margins on each tergum, a pair of black obtuse subtriangular patches on the dorsum, a pair of faded black dots on the lateral side of the thoracic shield, a light yellowish venter with faded light brown spots on pleurites 3–11, and a roundly triangular to spatulate syncoxital lobe of the telopod. Phylogenetic trees based on a fragment of the mitochondrial COI gene confirmed the entity of the new species and revealed a close relationship with R. carnifex and R. nigroflava. Interspecific genetic distances between R. sirindhornae sp. nov. and other Rhopalomeris species ranged from 9.97–14.36%, with the shortest distance to R. carnifex. Intraspecific genetic distances within each Rhopalomeris species ranged from 0–6.16%. A new distribution map of the presently known Rhopalomeris is also provided.

Keywords: Myriapoda, biodiversity, taxonomy, phylogeny, Indochina

Rhopalomeris sirindhornae sp. nov.
 A, B.paratypes (MUMNH–GLO189), habitus, live coloration; A.unrolled in sublateral view; B.rolled in sublateral view;
C–E.♀paratype (MUMNH–GLO189), alcohol preserved, in dorsal, ventral, and lateral views, respectively.

A, B.pictures taken without scale; C–E.scale bars: 2 mm.

Pichsinee Sapparojpattana, Ekgachai Jeratthitikul and Natdanai Likhitrakarn. 2025. A New Species of the Pill Millipede Genus Rhopalomeris Verhoeff, 1906 (Diplopoda, Glomerida) from Southern Thailand. Tropical Natural History. Supplement 8; 52-61. https://li01.tci-thaijo.org/index.php/tnh/article/view/266529 [2025-10-14]

 กิ้งกือกระสุนพระรามเจ้าฟ้า Rhopalomeris sirindhornae: 

กิ้งกือกระสุนขนาดเล็ก ความยาวลำตัวประมาณ 8-11 มิลลิเมตร มีสีสันและลวดลายสวยงาม ลำตัวสีเหลืองอ่อนและบริเวณด้านข้างของลำตัวมีสีแดงอมชมพู บนแผ่นเปลือกมีลายจุดวงรีสีดำ 1 คู่ที่บริเวณหลังตั้งแต่แผ่นเปลือกที่ 3-11 และลายจุดสีดำ 1 จุดที่ด้านข้าง กึ่งกลางของส่วนท้ายแผ่นเปลือกแต่ละแผ่นมีสีเหลือง แผ่นเปลือกแรกมีลวดลายเป็นแผ่นสีน้ำตาลดำขนาดใหญ่ 1 คู่ แผ่นเปลือกที่ 2 มีลายจุดสีดำจางๆที่ด้านข้าง ท้องมีจุดสีน้ำตาลอ่อนบนแผ่นเปลือกที่ 3-11 หัวสีน้ำตาลเข้ม กิ้งกือกระสุนชนิดนี้พบบริเวณเขาหินปูนในเขตจังหวัดชุมพรและสุราษฎร์ธานีในประเทศไทย

  facebook.com/EkgachaiJeratthitikul/posts/32993788623545210

[Botany • 2025] Kaisupeea larsenii (Gesneriaceae) • A New Species from southern Thailand

Kaisupeea larsenii Triboun, Pansomboon & Bannajit,

in Triboun, Pansomboon, Bannajit et Middleton, 2025.

มณีไกรลาส || http://qsbg.or.th 

 facebook.com/QSBGcm

Abstract 

Kaisupeea larsenii Triboun, Pansomboon & Bannajit, a new species from southern Thailand is newly described. A description and illustration are provided.

Keywords: Kaisupeea, new to science, Ranong, taxonomic treatment, Thailand

Kaisupeea larsenii Triboun, Pansomboon & Bannajit, sp. nov. 

Pramote Triboun, Tossawat Pansomboon, Worapon Bannajit and David J. Middleton. 2025. Kaisupeea larsenii (Gesneriaceae), A New Species from Thailand. Thai Journal of Botany. วารสารพฤกษศาสตร์ไทย. 17: 31–34. 

 http://qsbg.or.th/journal/showarticle_en.aspx?type=article&id=380 

 facebook.com/QSBGcm/posts/1094105446175898

[Botany • 2025] Goniothalamus obovatus (Annonaceae) • A New Species from southern Thailand

 

Goniothalamus obovatus Chaowasku & Damth.,

 in Damthongdee, Narintarangkul Na Ayutthaya, Chanthamrong, Ruangritthidech, Wiya et Chaowasku, 2025. 

ปาหนันทุ่งหว้า || https://taiwania.ntu.edu.tw/abstract/2119

Abstract

Goniothalamus obovatus Chaowasku & Damth., a new species of Annonaceae from southern Thailand is described and illustrated. It is morphologically most similar to G. banii endemic to Vietnam, but can be distinguished from it by possessing terete (vs ± angular) branches, a subcordate to cordate (vs rounded) leaf base, shorter inner petals, an inner petal apex that is ± acute (vs long-acuminate), a lower ratio of inner petal to outer petal length, fewer stamens per flower, a staminal connective apex that is ± apiculate (vs rounded), fewer carpels per flower and densely hairy (vs glabrous) ovaries. The conservation status of the new species is provisionally assessed as Data Deficient.

Keyword: Annoninae, Goniothalamus, Goniothalamus banii, new species, Satun, taxonomy, Thailand

  

 Flowers and floral organs of Goniothalamus obovatus sp. nov.
 A. Flowers. B. Flower with one outer petal removed. C. Adaxial side of outer petal. D. Adaxial side of inner petal. E. Flower with petals removed. F. Flower with petals, stamens and carpels removed. G. Abaxial side of stamen. H. Carpel. All from the holotype (B–H from material in spirit).

 Holotype of Goniothalamus obovatus sp. nov. at CMUB.

Goniothalamus obovatus Chaowasku & Damth., sp. nov.

Diagnosis: The new species morphologically most similar to G. banii B.H.Quang, R.K.Choudhary & V.T.Chinh endemic to Vietnam (Quang et al., 2016) mainly in leaf, sepal and outer petal shape, as well as number of ovules per ovary, but distinguishable from it by having terete (vs ± angular) branches, a subcordate to cordate (vs rounded) leaf base, shorter inner petals, an inner petal apex that is ± acute (vs long-acuminate), a lower ratio of inner petal to outer petal length, fewer stamens per flower, a staminal connective apex that is ± apiculate (vs rounded), fewer carpels per flower and densely hairy (vs glabrous) ovaries (Table 1).

Etymology: The specific epithet refers to the obovate leaves of this species. 

Anissara Damthongdee, Pimjan Narintarangkul Na Ayutthaya, Kithisak Chanthamrong, Setthikij Ruangritthidech, Chattida Wiya and Tanawat Chaowasku. 2025. Goniothalamus obovatus (Annonaceae), A New Species from southern Thailand.  Taiwania. 70(4); 631-634. DOI: 10.6165/tai.2025.70.631 [04 September 2025] 

https://taiwania.ntu.edu.tw/abstract/2119