[Ichthyology • 2022] Revalidation of the Genus Ichthyocoris Bonaparte, 1840 (Blenniiformes: Blenniidae)

(A) Ichthyocoris atlantica, Morocco, Ouerrha River;
(B) I. economidisi, Greece, Lake Trichonis; 
(C) I. fluviatilis, Spain, Jerea River (Ebro drainage).

in Duquenne-Delobel, Doadrio & Denys, 2022. 

DOI: 10.3897/aiep.52.79458

 (photos: I. Doadrio & R. Covain) 

Abstract

Combtooth blennies belonging to the genus Salaria were known to have marine and freshwater species. However, recent molecular studies highlighted this genus as paraphyletic, clearly distinguishing both marine and freshwater species. In this paper, we revalidate the genus Ichthyocoris, which corresponds to the freshwater species: Ichthyocoris atlantica (Doadrio, Perea et Yahyaoui, 2011), new combination, Ichthyocoris economidisi (Kottelat, 2004), new combination, and Ichthyocoris fluviatilis (Asso y del Rio, 1801), new combination. It is distinguishable by the presence of brownish bars on the flanks not contrasted with black dots conferring a marble coat, a dorsal fin slightly notched between spined and soft rays (except for I. atlantica), 16–18 dorsal-fin soft rays, 16–20 anal-fin soft rays, 34–38 vertebrae, 8–9 circumorbital pores, 8–11 preopercular pores, and 3 supratemporal pores. The genus Salaria corresponds to the marine species Salaria basilisca (Valenciennes, 1836) and Salaria pavo (Risso, 1810).

Keywords: combtooth blennies, generic concept, integrative taxonomy, Salaria

Lateral view of Ichthyocoris spp.:
 I. atlantica, MNCN 280135, 61 mm SL, Morocco, Ouerrha River (Sebou drainage) at Ouazzane

(A; photo credits: I. Doadrio); 

I. economidisi, MHNG 2641.89, holotype, 60.8 mm SL, Greece, Lake Trichonis east of Panetolio

(B; photo credits: R. Covain);

I. fluviatilis, 89 mm SL, Spain, Jerea River (Ebro drainage) at Virués

(C; photo credits: I. Doadrio).

Family Blenniidae

 Ichthyocoris Bonaparte, 1840 

Type species: Salarias varus Risso, 1827.

Synonyms: Salariopsis Vecchioni, Ching, Marrone, Arculeo, Hundt et Simons, 2022 

Included species: 

Three species: 

Ichthyocoris atlantica (Doadrio, Perea et Yahyaoui, 2011), new combination; 

Ichthyocoris economidisi (Kottelat, 2004), new combination; 

Ichthyocoris fluviatilis (Asso y del Rio, 1801), new combination.

Diagnosis: Ichthyocoris is distinguishable from Salaria by the presence of brownish bars on the flanks not contrasted with black dots conferring a marble coat (Fig. 1) (vs. brownish bars on the flanks very contrasted with blue stripes and dots conferring a marbled coat; Fig. 2); dorsal-fin slightly notched between spined and soft rays (Fig. 1) except for I. atlantica (vs. not notched; Fig. 2); 16–18 dorsal-fin soft rays (vs. 21–27); 16–20 anal-fin soft rays (vs. 20–28); 34–38 vertebrae (vs. 38–44); 8–9 circumorbital pores (vs. 6–7); 8–11 preopercular pores (vs. 6–8); 3 supratemporal pores (vs. 2) (Table 1).

Distribution: Ichthyocoris is present in drainages of the Mediterranean basin, in catchments of the Atlantic coast in Morocco and Spain as well as in the Black Sea.

 Emma Duquenne-Delobel, Ignacio Doadrio and Gaël P. J. Denys. 2022. Revalidation of the Genus Ichthyocoris Bonaparte, 1840 (Actinopterygii: Blenniiformes: Blenniidae). Acta Ichthyologica et Piscatoria. 52(1): 35-41. DOI: 10.3897/aiep.52.79458

[Ichthyology • 2018] Evidence of Cryptic Species in the Blenniid Cirripectes alboapicalis species complex, with Zoogeographic Implications for the South Pacific

Cirripectes alboapicalis 

live colors of Clade 1 from Rangitāhua - Kermadec Islands

in Delrieu-Trottin, Liggins, Trnski, et al., 2018. 

DOI: 10.3897/zookeys.810.28887

 (photograph by Richard Robinson (www.depth.co.nz) 

Abstract

Rapa Nui, commonly known as Easter Island (Chile), is one of the most isolated tropical islands of the Pacific Ocean. The island location of Rapa Nui makes it the easternmost point of the geographic ranges for many western Pacific fish species that are restricted to the subtropical islands south of 20°S latitude. The blenniid fish species Cirripectes alboapicalis has been thought to have one of the most extensive geographic distribution ranges among these southern subtropical fish species, extending from the southern Great Barrier Reef to Rapa Nui. A phylogenetic analysis was conducted to determine the taxonomic status of the species. The results provide genetic evidence that suggests that this formerly South Pacific-wide species comprises at least three cryptic species with allopatric geographic distributions. The analyses reveal the geographic distributions of these clades and their genetic relationships with each other, and with other species within the genus Cirripectes. The processes that culminated in the current geographic distribution of this species complex and the zoogeographic implications of this finding for the South Pacific region are discussed.

Keywords:  Austral Islands, Blenniidae, cryptic species, cytochrome oxidase I, Easter Island, endemism, French Polynesia, Gambier Islands, Kermadec Islands, mtDNA, Phylogeny, Rangitāhua, Rapa Nui

Figure 4. Pictures of specimens from the three genetic clades of this study;
 a live colors (photograph by Richard Robinson (www.depth.co.nz)) and b freshly dead colors (photograph by Carl Struthers Museum of New Zealand Te Papa Tongarewa) of Clade 1 from Rangitāhua - Kermadec Islands
c Clade 2, French Polynesia from Austral - Gambier Islands (photographs by Jeffrey T. Williams)
d Clade 3 Rapa Nui (photograph by Erwan Delrieu-Trottin);
and e Cirripectes obscurus (photograph by Jeffrey T. Williams).

 Erwan Delrieu-Trottin, Libby Liggins, Thomas Trnski, Jeffrey T. Williams, Valentina Neglia, Cristian Rapu-Edmunds, Serge Planes and Pablo Saenz-Agudelo. 2018. Evidence of Cryptic Species in the Blenniid Cirripectes alboapicalis species complex, with Zoogeographic Implications for the South Pacific.  ZooKeys. 810: 127-138. DOI: 10.3897/zookeys.810.28887

[Ichthyology • 2017] Adelotremus deloachi • A New Species of the Fangblenny Adelotremus from Indonesia, with Supplemental Description of A. leptus (Blenniidae: Nemophini)

Adelotremus deloachi 

Smith-Vaniz, 2017 

DOI: 10.11646/zootaxa.4258.2.7

Abstract

A new fangblenny, Adelotremus deloachi, is described on the basis of three specimens, 29‒35 mm SL, from Bali and Lembeh Strait, Indonesia. All these specimens were collected in 10‒17 m depth on sandy slopes. The new species differs from Adelotremus leptus, its Red Sea and only congener, in having a pair of mid-dorsal supratemporal pores (vs. a single pore), dorsal-fin spines X (vs. IX) and precaudal and caudal vertebra 12 + 23 (vs. 13 + 19). The discovery of a second species requires slight modification of the diagnosis of the genus. Unlike the five other nemophine genera, Adelotremus differs most notably in having the third infraorbital bone and associated sensory pores absent, and the combination of ventral margin of gill opening opposite the dorsalmost 5th or 6th pectoral-fin ray, total dorsal-fin elements 28‒29 and interorbital pores 2. With a total of four specimens of Adelotremus, it is now apparent that several features of the cephalic pore arrangement of the genus are different from that found in Petroscirtes, its presumed sister genus. Recent color photographs indicate that both species of Adelotremus exhibit marked sexual dichromatism with males having a conspicuous ocellus anteriorly in the dorsal fin that is absent in females.

Keywords: Pisces, taxonomy, Pisces, Blenniidae, Adelotremus, new species

FIGURE 1. Adelotremus deloachi holotype, ZMA 23004, male, 32.0 mm SL, Bali, Indonesia.

 Photograph by Ned DeLoach. DOI: 10.11646/zootaxa.4258.2.7

FIGURE 2. Adelotremus deloachi paratype, USNM 438965, female, 29.4 mm SL, Lembeh Strait, Indonesia.

Photograph by Ned DeLoach. DOI: 10.11646/zootaxa.4258.2.7

 Adelotremus deloachi new species 
Spotfin fangblenny

Distribution. Known only from Bali and Lembeh Strait but undoubtedly more widely distributed in Indonesia. 

Etymology. This new species is named Aledotremus deloachi in honor of Ned DeLoach in recognition and appreciation of his books, magazine articles and photographs that celebrate the beauty and diversity of reef fishes, all of which have encouraged numerous divers and fish watchers to become more aware of the importance of protecting the threatened marine environment and fauna

.....

William F. Smith-Vaniz. 2017. A New Species of the Fangblenny Adelotremus from Indonesia, with Supplemental Description of A. leptus (Teleostei: Blenniidae: Nemophini).

Zootaxa. 4258(2): 179–186.  DOI: 10.11646/zootaxa.4258.2.7

[Ichthyology • 2013] Hypleurochilus brasil • A New Species of the Genus Hypleurochilus (Teleostei: Blenniidae) from Trindade Island and Martin Vaz Archipelago, off Brazil

Hypleurochilus brasil

Pinheiro, Gasparini & Rangel, 2013

Abstract

A new species of the genus Hypleurochilus, endemic to Trindade Island and Martin Vaz Archipelago, off Brazil, is described. Hypleurochilus brasil sp. n. differs from its congeners in color pattern and anal-ray counts. A recent study shows a close relationship between H. brasil sp. n. and H. fissicornis. This new species is recorded from 3 to 15 m depth, solitary or in small groups (up to 10 individuals), always in small holes or associated with sea-urchins and sponges on the rocky reefs. Hypleurochilus brasil sp. n. is the eleventh recognized species of Hypleurochilus and the third species of this genus reported from the Brazilian Province.

Key words: combtooth blenny, endemism, oceanic islands, reef fish, South Atlantic

Hudson T. Pinherio, Joao Luiz Gasparini and Carlos A. Rangel. 2013. A New Species of the Genus Hypleurochilus (Teleostei: Blenniidae) from Trindade Island and Martin Vaz Archipelago, Brazil. Zootaxa. 3709 (1): 095–100.  DOI: dx.doi.org/10.11646/zootaxa.3709.1.5 

http://www.mapress.com/zootaxa/2013/f/z03709p100f.pdf

New species of labrisomidae fish discovered in Brazil 

http://phys.org/news/2013-10-species-labrisomidae-fish-brazil.html

http://www.tfhmagazine.com/blogs/2013/10/31/a-new-species-found-hiding-further-inland-than-its-cousins/

http://www.agenciasinc.es/en/News/New-species-of-labrisomidae-fish-discovered-in-Brazil