A new species of Rock Gecko of the genus Cnemaspis Strauch, 1887 (Squamata: Gekkonidae) from Belitung Island, Indonesia

Abstract

A new species of rock gecko of the genus Cnemaspis Strauch is described from Belitung Island, Indonesia. The new species is differentiated from all other species in the Southern Sunda clade (sensu Grismer et al. 2014a) by having a unique combination of characters including: (1) a maximum SVL of 54.1 mm, (2) five or six postmental scales, (3) enlarged submetacarpal scales on the first finger, (4) enlarged submetatarsal scales on the first toe, (5) keeled ventral scales, (6) absence of precloacal pores, (7) absence of enlarged femoral scales, (8) absence of shield-like subtibial scales, (9) caudal tubercles encircling the tail, (10) an interrupted median row of enlarged keeled subcaudals, (11) presence of a distinct furrow on the lateral surface of the tail (12) 22-24 lamellae beneath fourth toe, and (13) two postcloacal tubercles on each side of the tail base.Key words: Cnemaspis, Belitung Island, Indonesia, new species AbstrakSpesies baru cicak batu marga Cnemaspis Strauch telah dipertelakan dari pulau Belitung, Indonesia dan dapat dibedakan dari kerabatnya dalam klan Sunda Selatan (menurut Grismer dkk 2014a) berdasarkan kombinasi unik karakter yang meliputi: (1) maksimum SVL 50.8 mm, (2) lima atau enam sisik postmental, (3) terdapat sisik besar submetakarpal pada jari pertama tungkai depan, (4) sisik besar submetatarsal pada jari pertama tungkai bawah, (5) sisik perut berlunas, (6) tidak terdapat lubang prekloakal, (7) tidak terdapat sisik besar pada paha, (8) tidak terdapat sisik subtibial, (9) struktur tubercular mengelilingi ekor membentuk formasi cincin, (10) sisi samping ekor terdapat alur yang jelas, (11) barisan sisik besar tengah subkaudal tidak dalam rentengan, (12) 22-24 lamela pada jari ke-empat tungkai belakang, dan (13) dua struktur tuberkular belakang kloaka di masing-masing dinding pangkal ekor.

Integrative taxonomy of the rock-dwelling gecko Cnemaspis siamensis complex (Squamata, Gekkonidae) reveals a new species from Nakhon Si Thammarat Province, southern Thailand

“…Southeast Asian Cnemaspis is a monophyletic group (Gamble et al 2012;Pyron et al 2013) that contains 59 species distributed from Laos, southern Vietnam, Cambodia, Thailand, southward through the Thai-Malay Peninsula to Borneo, Java, and Sumatra (Bauer and Das 1998;Das 2005;Bauer et al 2007;Grismer and Ngo 2007;Grismer et al 2009Grismer et al , 2014Grismer and Chan 2010;Kurita et al 2017;Riyanto et al 2017;Uetz et al 2019). In Thailand, there are currently 17 recognized species of Cnemaspis (Grismer et al , 2014Wood et al 2017;Ampai et al 2019;Uetz et al 2019), ranging from Kanchanaburi Province, western Thailand to Chanthaburi Province, eastern Thailand (Bauer and Das 1998), southward through southern Thailand and its offshore islands (Grismer et al 2014;Wood et al 2017;Ampai et al 2019).…”

Morphological and molecular analyses reveal two new insular species of Cnemaspis Strauch, 1887 (Squamata, Gekkonidae) from Satun Province, southern Thailand

“…The rock gecko genus Cnemaspis Strauch, 1887 currently contains 57 recognized species distributed throughout Southeast Asia (Grismer et al 2014;Riyanto et al 2017;Wood et al 2017;Uetz et al 2018). The number of recognized Cnemaspis species has increased rapidly during the past two decades (e.g.…”

“…The number of recognized Cnemaspis species has increased rapidly during the past two decades (e.g. Bauer and Das 1998;Das 2005;Bauer et al 2007;Grismer et al 2009Grismer et al , 2014Grismer et al , 2015bGrismer and Chan 2010;Wood et al 2013Wood et al , 2017Riyanto et al 2017). Thailand currently contains 16 recognized species of Cnemaspis (Grismer et al , 2014Wood et al 2017;Uetz et al 2018) ranging from Chanthaburi in the east (Bauer and Das 1998), Sai Yok to the west , and south through the Thai peninsula to the Malaysian border and its offshore islands (Grismer et al 2014;Wood et al 2017).…”

Hidden diversity of rock geckos within the Cnemaspis siamensis species group (Gekkonidae, Squamata): genetic and morphological data from southern Thailand reveal two new insular species and verify the phylogenetic affinities of C. chanardi and C. kamolnorranathi

“…The genus has a geographically widespread distribution, ranging from South Asia to Southeast Asia, and is composed of two separate clades based on multi-locus phylogenetic analyses (Gamble et al 2012(Gamble et al , 2015Pyron et al 2013;Karunarathna et al 2019;Malonza and Bauer 2022). The 64 currently described Southeast Asian species of Cnemaspis represent a monophyletic group, include many species with specializations for various rocky habitats (Grismer et al , 2014Nguyen et al 2020), and are distributed in Myanmar, Thailand, Laos, Cambodia, Vietnam, Malaysia and Indonesia (Bauer and Das 1998;Das 2005;Grismer and Ngo 2007;Grismer et al , 2014Grismer et al , 2020Kurita et al 2017;Riyanto et al 2017;Wood et al 2017;Ampai et al 2019Ampai et al , 2020Lee et al 2019;Nashriq et al 2022). In Thailand, 19 named species of Southeast Asian Cnemaspis (Grismer et al , 2014(Grismer et al , 2020Wood et al 2017;Ampai et al 2019Ampai et al , 2020Uetz et al 2022) occur throughout much of the country's mainland and adjacent offshore islands (Grismer et al 2014(Grismer et al , 2020Wood et al 2017;Ampai et al 2019Ampai et al , 2020Lee et al 2019).…”