Friday, May 24, 2019

[Herpetology • 2019] Subdoluseps malayana • A New Skink of the Genus Subdoluseps Freitas, Datta-Roy, Karanth, Grismer & Siler, 2019 from Peninsular Malaysia


 Subdoluseps malayana
Grismer, Dzukafly, Muin, Quah, Karin, Anuar & Freitas, 2019


Abstract
An integrative taxonomic analysis of Subdoluseps herberti from southern Thailand and Peninsular Malaysia and S. samajaya from Sarawak, East Malaysia (Borneo) recovers the former as paraphyletic with respect to the latter. The analyses recover the three southernmost populations of S. herberti in Peninsular Malaysia as conspecific and the sister lineage of S. samajaya, whereas S. herberti from Thailand and northern Peninsular Malaysia constitute the sister species to S. samajaya plus the southern three Peninsular Malaysian populations. As such, the southern populations are described herein as Subdoluseps malayana sp. nov. and all three species are referred to as the S. herberti group. Clade boundaries and breaks within this group on the Thai-Malay Peninsula occurring at the Isthmus of Kra, across the Kangar-Pattani line, and between the Thai-Malay Peninsula and Borneo are consistent with phylogeographic patterns of other Sundaic taxa. The discovery of S. malayana sp. nov. continues to underscore the fact that, despite the well-studied nature of the lizard fauna of Peninsular Malaysia, much of it still remains unrealized and for conservation efforts to move forward, field research followed by expeditiously revised taxonomies must continue.

 Keywords: Reptilia, Integrative taxonomy, Thai-Malay Peninsula, Borneo, Lygosoma. Scincidae

Juvenile Subdoluseps malayana sp. nov. from Bukit Panchor State Park, Penang, Peninsular Malaysia
(photo by M. A. Muin).

FIGURE 2. A. Subdoluseps malayana sp. nov. (holotype LSUHC 10995) from Teluk Rubiah, Perak, Peninsular Malaysia (photo by L. L. Grismer). B. Subdoluseps herberti (LSUDPC 4851) from Phuket Island, Phuket, Thailand (photo by W. Grossmann).
C. Subdoluseps malayana sp. nov. (LSUDPC 10945) from Kampung Pisang, Perak, Peninsular Malaysia (photo by Z. Dzukafly). D. Subdoluseps herberti (LSUHC 11803) from Perlis State Park, Perlis, Peninsular Malaysia (photo by E.S.H. Quah).
E. Subdoluseps samajaya from the Sama Jaya Forest Reserve, Kuching, Sarawak, East Malaysia (photo from Karin et al. 2018). F. Juvenile 
Subdoluseps malayana sp. nov. (paratype LSUHC 12098) from Bukit Panchor State Park, Penang, Peninsular Malaysia (photo by M. A. Muin).

Subdoluseps malayana sp. nov.
Suggested common name: Malaysian Supple Skink

Lygosoma herberti (part) Sworder, 1933:103; Grismer, 2011:619; Karin et al.., 2018:361.
Subdoluseps herberti (part) Freitas et al., 2019:22.

Etymology. The name malayana is in reference to this species being endemic to Peninsular Malaysia.

Distribution. Subdoluseps malayana sp. nov. is known only from Peninsular Malaysia from the states of Penang and Perak but is expected to occur farther to the south.


L. Lee Grismer, Zaharil Dzukafly, Mohd Abdul Muin, Evan S. H. Quah, Benjamin R. Karin, Shahrul Anuar and Elyse S. Freitas. 2019. A New Skink of the Genus Subdoluseps (Hardwicke & Gray, 1828) from Peninsular Malaysia. Zootaxa. 4609(2); 358–372.  DOI: 10.11646/zootaxa.4609.2.10  

Freitas, E.S., Datta-Roy, A., Karanth, P., Grismer, L.L. and Siler, C.D. 2019. Multilocus phylogeny and a new classification for African, Asian and Indian supple and writhing skinks (Scincidae: Lygosominae). Zoological Journal of the Linnean Society. zlz001.  DOI: 10.1093/zoolinnean/zlz001