Peninsular Malaysia’s first limbless lizard: a new species of skink of the genus Larutia (Böhme) from Pulau Pinang with a phylogeny of the genus

Zootaxa ◽  
2011 ◽  
Vol 2799 (1) ◽  
pp. 29 ◽  
Author(s):  
L. LEE GRISMER ◽  
EVAN QUAH SENG HUAT ◽  
CAMERON D. SILER ◽  
K. O. CHAN ◽  
PERRY L. WOOD, JR. ◽  
...  
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Large Body ◽  
Peninsular Malaysia ◽  
Nuclear Genes ◽  
Sister Species ◽  
Unique Combination ◽  
A New Species

A new species of the scincid genus Larutia, L. penangensis sp. nov., from Pulau Pinang, Peninsular Malaysia is separated from all other congeners by having the unique characteristics of the complete absence of limbs, four supralabials, large body scales, and no banding or striping pattern. Additionally, it has the following unique combination of characters that further separates it from all congeners: a single presubocular; separated nasals; paired frontoparietals; small, widely separated prefrontals; no supranasals or postnasal; two postsupralabials; and large, posterior chinshields that contact the infralabials. A molecular phylogeny based on one mitochondrial and two nuclear genes from all species of Larutia from Peninsular Malaysia indicates L. penangensis sp. nov. is most basal and that L. seribuatensis is the sister lineage to a clade containing L. miodactyla and the sister species L. trifasciata and L. larutensis. Consistencies and inconsistencies between this phylogeny and a previously proposed morphological phylogeny are discussed.

scholarly journals Hidden tribe: A new species of Stream Toad of the genus Ansonia Stoliczka, 1870 (Anura: Bufonidae) from the poorly explored mountainous borderlands of western Thailand

2021 ◽  
Vol 71 ◽  
pp. 763-779
Author(s):  
Chatmongkon Suwannapoom ◽  
L. Lee Grismer ◽  
Parinya Pawangkhanant ◽  
Mali Naiduangchan ◽  
Platon V. Yushchenko ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Color Pattern ◽  
Sister Species ◽  
Mountain Region ◽  
Unique Combination ◽  
Species Status ◽  
Molecular Phylogenetic ◽  
A New Species

Abstract The integrated results of morphological and molecular phylogenetic analyses confirmed the new species status of a recently discovered population of Ansonia from Suan Phueng District, Ratchaburi Province, Thailand. Ansonia karensp. nov. is separated from all other species of Ansonia by a unique combination of mensural, discrete morphological, and color pattern characteristics and is the sister species of A. thinthinae from Tanintharyi Division, Myanmar. This discovery fills a geographic hiatus of 350 km between it and A. kraensis from Ranong Province, Thailand. Ansonia karensp. nov. is the newest member of a long list of range-restricted endemics having been recently discovered in the northern Tenasserim Mountain region of western Thailand and continues to underscore the unexplored nature of this region and its need for conservation.

A new spiny, prehensile-tailed species of Cyrtodactylus (Squamata: Gekkonidae) from Peninsular Malaysia with a preliminary hypothesis of relationships based on morphology

Zootaxa ◽  
2010 ◽  
Vol 2625 (1) ◽  
pp. 40 ◽  
Author(s):  
L. LEE GRISMER ◽  
SHAHRUL ANUAR ◽  
EVAN QUAH ◽  
MOHD ABDUL MUIN ◽  
CHAN KIN ONN ◽  
...  
Keyword(s):  
New Species ◽  
Color Pattern ◽  
Peninsular Malaysia ◽  
Sister Species ◽  
Exploratory Research ◽  
Malay Peninsula ◽  
A New Species

A new species, Cyrtodactylus durio sp. nov., is described from northwestern Peninsular Malaysia on the basis of its head, body, limbs, and tail being extremely spinose as well as other unique combinations of squamation and color pattern. It is proposed that C. durio sp. nov. forms a clade with C. brevipalmatus, C. elok, C. spinosus, and C. stresemanni on the basis of having a spiny, prehensile tail and that it is the sister species of C. stresemanni based on unique caudal tuberculation. Cytrodactylus durio sp. nov. is the latest in a growing list of new species of amphibians and reptiles recently described from the Malay Peninsula, and Peninsular Malaysia in particular, that clearly underscores the need for continuing exploratory research in these regions.

A new species of Hemiphyllodactylus Bleeker (Squamata; Gekkonidae) from Peninsular Thailand that converges in morphology and color pattern on Pseudogekko smaragdinus (Taylor) from the Philippines

Zootaxa ◽  
2020 ◽  
Vol 4816 (2) ◽  
pp. 171-190 ◽  
Author(s):  
L. LEE GRISMER ◽  
PLATON V. YUSHCHENKO ◽  
PARINYA PAWANGKHANANT ◽  
MALI NAIDUANGCHAN ◽  
ROMAN A. NAZAROV ◽  
...  
Keyword(s):  
New Species ◽  
Color Pattern ◽  
The Philippines ◽  
Peninsular Malaysia ◽  
Sister Species ◽  
Field Surveys ◽  
Body Morphology ◽  
Taxonomic Analysis ◽  
Dorsal Pattern ◽  
A New Species

An integrative taxonomic analysis of newly discovered populations of Hemiphyllodactylus from Indochina recovered a new species from Peninsular Thailand and two others from Laos. The new Thai species, Hemiphyllodactylus pardalis sp. nov. described herein, is the sister species to all other species in the newly designated Indochina clade and has a unique spotted contrasting dorsal pattern not seen in any other species of Hemiphyllodactylus. This, along with its elongate and gracile body morphology, renders it remarkably convergent on the Philippine gecko Pseudogekko smaragdinus despite the fact it is deeply nested within Hemiphyllodactylus. The description of this new species underscores the depauperate nature of Hemiphyllodactylus diversity throughout Indochina in general and Thailand in particular compared to neighboring upland areas of Myanmar and Peninsular Malaysia. This especially underscores the need for continued herpetofaunal field surveys in montane areas of western Thailand. 

A new species of Ansonia Stoliczka 1872 (Anura: Bufonidae) from Central Peninsular Malaysia and a revised taxonomy for Ansonia from the Malay Peninsula

Zootaxa ◽  
2006 ◽  
Vol 1327 (1) ◽  
pp. 1 ◽  
Author(s):  
L. LEE GRISMER
Keyword(s):  
New Species ◽  
Color Pattern ◽  
Peninsular Malaysia ◽  
The State ◽  
Malay Peninsula ◽  
Undescribed Species ◽  
Unique Combination ◽  
Head Morphology ◽  
A New Species

A new, montane species of Ansonia is described from the state of Pahang in central, peninsular Malaysia on the basis of having a unique combination of head, body, digit, and color pattern characteristics. This new species is similar to A. malayana, to which it is closest geographically, but differs greatly in aspects of head morphology and body tuberculation. A review of Ansonia from the Malay Peninsula demonstrates that the population of A. malayana from Tasan, Chumphon Province, Thailand is A. kraensis and A. penangensis from Ulu Tahan, Pahang in peninsular Malaysia is not conspecific with A. penangensis from Pulau Penang but an additional, undescribed species ranging throughout northwestern, peninsular Malaysia.

Pseudancistrus corantijniensis, a new species from the Guyana Shield (Siluriformes: Loricariidae) with a molecular and morphological description of the Pseudancistrus barbatus group

Zootaxa ◽  
2008 ◽  
Vol 1918 (1) ◽  
pp. 45-58 ◽  
Author(s):  
SOPHIE DE CHAMBRIER ◽  
JUAN I. MONTOYA-BURGOS
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Posterior Part ◽  
Distribution Range ◽  
Sister Species ◽  
Morphological Description ◽  
Caudal Peduncle ◽  
D Loop ◽  
A New Species

Pseudancistrus corantijniensis is described based on specimens captured in the Corantijn River in Suriname. It is diagnosed by a particular arrangement of whitish spots, very small in the anterior three quarters of the head and large from the posterior part of the head to the caudal peduncle. As indicated by our molecular phylogeny based on mitochondrial D-loop sequences, P. corantijniensis is a member of the Pseudancistrus barbatus group comprising Guyanese derived Pseudancistrus bearing hypertrophied odontodes along the snout and nonevertible cheek plates. Other members of this group are P. barbatus, P. depressus and P. nigrescens. The closest relative to the new species is P. nigrescens, while P. barbatus and P. depressus are sister species. The known distribution range of each of the four members of the P. barbatus group is disjoint. A key is provided for the identification of the four members of the P. barbatus group.

Molecular phylogeny of Asian pipesnakes, genus Cylindrophis Wagler, 1828 (Squamata: Cylindrophiidae), with the description of a new species from Myanmar

Zootaxa ◽  
2020 ◽  
Vol 4851 (3) ◽  
pp. 535-558
Author(s):  
JUSTIN M. BERNSTEIN ◽  
AARON M. BAUER ◽  
JIMMY A. MCGUIRE ◽  
EVY ARIDA ◽  
HINRICH KAISER ◽  
...  
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Southeast Asia ◽  
Cylindrical Body ◽  
Sister Species ◽  
Sri Lankan ◽  
Posterior Border ◽  
Limb Bones ◽  
Island Group ◽  
A New Species

Cylindrophis is a genus of secretive, semi-fossorial, non-venomous snakes comprising 14 species, characterized by a generally cylindrical body, uniform scales (with barely enlarged ventrals), and vestiges of pelvic and limb bones, the latter terminating in a claw lateral to the vent. We reconstructed a concatenated molecular phylogeny of seven taxa of Cylindrophis taxa based on one nuclear (R35) and two mitochondrial (16S, ND2) genes. Analyses recovered the Sri Lankan endemic C. maculatus as sister to all other sampled Cylindrophis. The mainland Southeast Asian species C. burmanus and C. jodiae form successive sister lineages to a monophyletic Wallacean island group containing C. boulengeri, C. isolepis, and C. yamdena. We also describe a new species of Cylindrophis, morphologically similar to C. burmanus, from Kachin State in northern Myanmar. Cylindrophis slowinskii sp. nov. is distinguished from all congeners by the following combination of characters: 19 dorsal scale rows at midbody, 216–220 ventrals, eight subcaudals, a dark venter with > 60 very narrow diffuse pale blotches, and a pale bar running along the posterior border of the prefrontals. In our phylogeny, the new species is strongly supported as the sister species of C. burmanus. It is the 15th currently recognised species in the genus, and the fourth from mainland Southeast Asia. 

A new endemic rock Gecko Cnemaspis Strauch 1887 (Squamata: Gekkonidae) from Gunung Jerai, Kedah, northwestern Peninsular Malaysia

Zootaxa ◽  
2010 ◽  
Vol 2576 (1) ◽  
pp. 59 ◽  
Author(s):  
CHAN KIN ONN ◽  
L. LEE GRISMER ◽  
SHAHRUL ANUAR ◽  
EVAN QUAH ◽  
MOHD ABDUL MUIN ◽  
...  
Keyword(s):  
New Species ◽  
Peninsular Malaysia ◽  
Sister Species ◽  
Mountain Ranges ◽  
A New Species

A new species of endemic Cnemaspis is described from Gunung Jerai (also known as Kedah Peak) in the northwestern state of Kedah, Peninsular Malaysia. Cnemaspis harimau sp. nov. differs from all other Sundaland congeners except C. affinis, C. biocellata, C. kumpoli, C. mcguirei, C. pseudomcguirei, and C. shahruli in having a black shoulder patch with a white or yellow ocellus anteriorly located. It is most similar in appearance to its sister species, C. affinis, but differs by having a smaller maximum SVL of 40.7 mm vs. 50.8 mm; three vs. five postmentals; caudal tubercles encircling vs. not encircling tail; lateral caudal tubercles on anterior 25% of tail highly spinose and protruding vs. slightly spinose; and an overall higher degree of scale keeling (most prominent on the tail). The discovery of another montane endemic once again highlights the understudied nature of Peninsular Malaysia’s extensive mountain ranges.

Another new Rock Gecko (genus Cnemaspis Strauch 1887) from Pulau Langkawi, Kedah, Peninsular Malaysia

Zootaxa ◽  
2018 ◽  
Vol 2419 (1) ◽  
pp. 51 ◽  
Author(s):  
L. LEE GRISMER ◽  
CHAN KIN ONN
Keyword(s):  
New Species ◽  
New Taxa ◽  
Color Pattern ◽  
Southeast Asian ◽  
Peninsular Malaysia ◽  
Unique Combination ◽  
Scale Characteristics ◽  
A New Species

A new species of forest dwelling Rock Gecko, Cnemaspis roticanai sp. nov., is described from the upper elevations of Gunung Raya, Pulau Langkawi, Kedah, Peninsular Malaysia. Cnemaspis roticanai is the second species of Cnemaspis described from Pulau Langkawi and is differentiated from all other Southeast Asian Cnemaspis in having a unique combination of color pattern and scale characteristics including keeled subtibials, ventrals, subcaudals, dorsal tubercles, and forearm scales; 25–27 paravertebral tubercles; a median row of enlarged, keeled subcaudals; five or six precloacal, pore-bearing scales in males separated medially by one or two non-pore-bearing scales; 26–29 subdigital lamellae on the fourth toe; no dark, longitudinal gular markings or blotches; no dark shoulder patch enclosing a white to yellow ocellus; and having a yellow to white, prescapular crescent. Cnemaspis roticanai is the latest species in a growing list of new taxa being discovered from the Langkawi Archipelago.

A new species of the subgenus Scheloribates (Topobates) (Acari: Oribatida: Scheloribatidae) from Panama

2020 ◽  
Vol 29 (2) ◽  
pp. 278-283
Author(s):  
S.G. Ermilov
Keyword(s):  
New Species ◽  
Body Size ◽  
Leaf Litter ◽  
Related Species ◽  
Large Body ◽  
Oribatid Mite ◽  
Neotropical Region ◽  
Large Body Size ◽  
First Time ◽  
A New Species

The oribatid mite subgenus Scheloribates (Topobates) Grandjean, 1958, is recorded from the Neotropical region for the first time. A new species of this subgenus is described from the leaf litter collected in Cayo Agua Island, Panama. Scheloribates (Topobates) panamaensis sp. nov. differs from its related species by the very large body size and presence of a strong ventrodistal process on the leg femora II–IV.

scholarly journals The freshwater crabs of Danum Valley Conservation Area in Sabah, East Malaysia, with a description of a new species of Thelphusula Bott, 1969 (Crustacea, Brachyura, Gecarcinucidae, Potamidae, Sesarmidae)

ZooKeys ◽  
2018 ◽  
Vol 760 ◽  
pp. 89-112 ◽  
Author(s):  
Peter K. L. Ng ◽  
Paul Y. C. Ng
Keyword(s):  
New Species ◽  
Adult Male ◽  
New Record ◽  
Morphological Features ◽  
Unique Combination ◽  
Conservation Area ◽  
Freshwater Crabs ◽  
East Malaysia ◽  
A New Species ◽  
Malaysian Borneo

Seven species of freshwater crabs from three families are recorded from and around the Danum Valley Conservation Area in Sabah, Malaysian Borneo: Thelphusulacapillodigitus sp. n., Thelphusuladicerophilus Ng & Stuebing, 1990, Arachnothelphusaterrapes Ng, 1991, Terrathelphusasecula Ng & Tan, 2015, Parathelphusavalida Ng & Goh, 1987 (new record) (Gecarcinucidae); Isolapotamoningeri Ng & Tan, 1998 (Potamidae); and Geosesarmadanumense Ng, 2002 (Sesarmidae). The new species of Thelphusula Bott, 1979, can be distinguished from all congeners by a unique combination of morphological features, most notably the presence of dense patches of short setae on the fingers of the adult male chelipeds, as well as the structure of the male first gonopod. Arachnothelphusaterrapes is confirmed to be a phytotelm species. A key to all species in the conservation area is provided.

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