Five new species of the spider genus Savarna Huber, 2005 (Araneae: Pholcidae) from Thailand

Zootaxa ◽  
2020 ◽  
Vol 4778 (2) ◽  
pp. 311-328
Author(s):  
TIANQI LAN ◽  
ZHIYUAN YAO ◽  
GUO ZHENG ◽  
PRASIT WONGPROM ◽  
SHUQIANG LI

The genus Savarna Huber, 2005 comprises only five species, from southern Thailand, Peninsular Malaysia and Sumatra. In this study, five new species are described from Thailand: Savarna bannang sp. nov. (Yala), S. chiangmai sp. nov. (Chiangmai), S. huahin sp. nov. (Prachuap Kiri Khan), S. satun sp. nov. (Satun), S. thungsong sp. nov. (Nakhon Srithammarat). All new species are described from males and females. The distribution of S. chiangmai sp. nov. represent the northernmost record of the genus. 

Crustaceana ◽  
1997 ◽  
Vol 70 (6) ◽  
pp. 710-719 ◽  
Author(s):  
Peter K.L. Ng

AbstractTwo new species of freshwater crabs of the family Parathelphusidae are described from southern Thailand. Sayamia melanodactylus sp. nov. is one of the smallest members of the genus known, and seems to be most closely related to S. sexpunctata, but differing in carapace and male gonopod characters as well as in the colour of the fingers of its minor chelae (black against brown). Heterothelphusa fatum sp. nov. is related to H. insolita from nearby northeastern Peninsular Malaysia, but has a distinctly more swollen carapace, proportionately more slender ambulatory legs and a very differently structured major male chela.


Zootaxa ◽  
2019 ◽  
Vol 4638 (2) ◽  
pp. 151-198 ◽  
Author(s):  
L. LEE GRISMER ◽  
PERRY L. JR. WOOD ◽  
JESSE L. GRISMER ◽  
EVAN S. H. QUAH ◽  
NEANG THY ◽  
...  

An integrative taxonomic analysis of the Ptychozoon lionotum group across its range in Indochina and Sundaland recovers P. lionotum sensu lato Annandale, 1905 as paraphyletic with respect to P. popaense Grismer, Wood, Thura, Grismer, Brown, & Stuart, 2018a and composed of four allopatric, genetically divergent, ND2 mitochondrial lineages. Multivariate and univariate analyses of continuous and discrete morphological and color pattern characters statistically and discretely diagnose each lineage from one another and together, with maximum likelihood and Bayesian inference analyses, provide the foundation for the recognition of each lineage as a new species—hypotheses corroborated with a Generalized Mixed Yule Coalescent species delimitation analysis. Ptychozoon cicakterbang sp. nov. ranges throughout Peninsular Malaysia to Pulau Natuna Besar, Indonesia; P. kabkaebin sp. nov. is endemic to northern and central Laos; and P. tokehos sp. nov. ranges from southern Thailand south of the Isthmus of Kra northward to Chiang Mai, fringing the Chao Phraya Basin and ranging southward through Cambodia to southern Vietnam. Ptychozoon lionotum sensu stricto ranges from northwestern Laos through southern Myanmar to eastern India. The phylogeographic structure within each species varies considerably with P. lionotum s.s. showing no genetic divergence across its 1,100 km range compared to P. cicakterbang sp. nov. showing upwards of 8.2% sequence divergence between syntopic individuals. Significant phylogeographic structure exists within P. tokehos sp. nov. and increased sampling throughout Thailand may require additional taxonomic changes within this species. 


2021 ◽  
Vol 28 (3) ◽  
pp. 152-162
Author(s):  
Parinya Pawangkhanant ◽  
Ton Smits ◽  
Ian Dugdale ◽  
Kanokwan Yimyoo ◽  
Tan Van Nguyen ◽  
...  

We report seven new country records of species of reptiles on the basis of recent herpetological surveys between 2015 – 2019 in southern Thailand: Gekko (Ptychozoon) cicakterbang, Dasia grisea, and Sphenomorphus sungaicolus from Yala Province; Gonocephalus liogaster, Gekko (Sundagekko) browni, Oligodon signatus, and Xenochrophis maculatus from Narathiwat Province. Our recent findings bring the total number of reptiles recorded in Thailand to 452 species. Furthermore, our results suggest that further intensified herpetological research efforts and international collaborations are required to increase our knowledge on the herpetofaunal diversity in the tropical rain forests of southern Thailand near the border with peninsular Malaysia.


ZooKeys ◽  
2020 ◽  
Vol 994 ◽  
pp. 1-34
Author(s):  
Peter K. L. Ng

The taxonomy of the potamid freshwater crabs of the Johora tahanensis (Bott, 1966) species group (Potamoidea) is revised. Seven species are recognised, all from Peninsular Malaysia and southern Thailand, three of which are described as new. The three new species were previously identified as J. tahanensis but can be distinguished by characters of the carapace, male first gonopod, and vulva. A revised key to the 18 recognised species of Johora Bott, 1966, is provided.


Zootaxa ◽  
2018 ◽  
Vol 4442 (1) ◽  
pp. 63-82 ◽  
Author(s):  
KORRAWAT ATTASOPA ◽  
HANS BÄNZIGER ◽  
TERD DISAYATHANOOWAT ◽  
LAURENCE PACKER

We describe Lepidotrigona satun Attasopa and Bänziger new species from southern Thailand based upon associated males and females (workers). The new species is a member of the L. ventralis species group, which is otherwise represented in Thailand only by L. flavibasis and L. doipaensis. We also describe the males of the latter two species, associated with nests from close to their type localities in northern Thailand. Lepidotrigona doipaensis Schwarz and L. flavibasis (Cockerell) had previously often been misidentified as L. ventralis (Smith), a species confirmed only from Borneo. Based upon differences in male morphology, especially of the metasomal sterna, we conclude that the male described from Vietnam by Sakagami (1975) as belonging to L. flavibasis represents an undescribed species. Our findings support previous taxonomic studies that highlight the importance of including males in the differentiation of closely related species of meliponines and their association with workers. The three species whose males we describe have asymmetric penis valves with the asymmetry differentially developed among the three. We compare this genitalic asymmetry with that known from a different apid genus, Tarsalia. 


Zootaxa ◽  
2010 ◽  
Vol 2505 (1) ◽  
pp. 40 ◽  
Author(s):  
CHAN KIN ONN ◽  
L. LEE GRISMER

Rhacophorus reinwardtii from Southern Thailand and Peninsular Malaysia is found to be morphologically distinct from Javan and Bornean populations and is herein described as a new species. Rhacophorus norhayatii sp nov. can be differentiated from R. reinwardtii by having a larger maximum SVL in males (64.7 mm vs. 55 mm); lacking spots on dorsum; higher degree of interdigital web pigmentation on hands and feet; and rusty brown markings on the flanks. This study adds to the growing list of taxonomic changes in Sunda Shelf taxa by demonstrating that species previously thought to be widely distributed across Sundaland are indeed distinct lineages worthy of species recognition.


Zootaxa ◽  
2009 ◽  
Vol 2126 (1) ◽  
pp. 1-40 ◽  
Author(s):  
PETER J. SCHWENDINGER

Phyxioschema suthepium Raven & Schwendinger, 1989 is revised and additional taxonomic characters and localities are given. Males and females of five new species are described: Phyxioschema erawan sp. n. (northern and western central Thailand), P. huberi sp. n. (southern Thailand), P. sayamense sp. n. (southern Thailand), P. eripnastes sp. n. (southern Thailand) and P. spelaeum sp. n. (southern Thailand). Notes are given on habitat, phenology and reproductive behaviour of all these species. Taxonomic characters are discussed and considerable variation in the genitalia of some species is shown. An hypothesis on the relationships between the currently known Phyxioschema species is presented.


Zootaxa ◽  
2008 ◽  
Vol 1875 (1) ◽  
pp. 51 ◽  
Author(s):  
L. LEE GRISMER ◽  
CHAN KIN ONN ◽  
NUROLHUDA NASIR ◽  
MONTRI SUMONTHA

A new species of karst dwelling gecko, Cnemaspis biocellata sp. nov. is described from the border region in the Satun Province of southern Thailand and the state of Perlis in northern Peninsular Malaysia. Cnemaspis biocellata sp. nov. is differentiated from all other species of Southeast Asian Cnemaspis by having a maximum SVL of 40.1 mm; 6–10 supralabials; 5–7 infralabials; weakly keeled scales on anterior portion of forearm; smooth ventral scales; no femoral pores; 8–12 precloacal pores; smooth subcaudals with an enlarged median row; one or two cloacal tubercles; 29–37 subdigital lamellae on fourth toe; no dark bands encircling tail; two distinct, white, well defined, occipital ocelli; a black occipital band bordering a series of closely spaced, large, white to yellow spots which form a nuchal band and a small, black shoulder patch enclosing a single white to yellow ocellus. This species is restricted to the karst formations of the Nakawan Range spanning the Thai-Malaysian border and has been misidentified as C. siamensis by previous authors.


ZooKeys ◽  
2019 ◽  
Vol 858 ◽  
pp. 127-161 ◽  
Author(s):  
Natee Ampai ◽  
Attapol Rujirawan ◽  
Perry L. Wood Jr ◽  
Bryan L. Stuart ◽  
Anchalee Aowphol

We describe two new insular gecko species of the genus Cnemaspis from Tarutao, Adang, and Rawi islands in Satun Province, southern Thailand. The new species are distinguished from their congeners in having a unique combination of morphological, scalation, and color pattern characters, and by genetic divergence in the mitochondrial NADH dehydrogenase subunit 2 (ND2) gene. Cnemaspistarutaoensissp. nov. was found to be a member of the C.kumpoli group, but is distinguished from all other species in that group by having 8–9 supralabials and 8 infralabials; 4–5 pore-bearing precloacal scales, pores rounded; 17–19 paravertebral tubercles randomly arranged; 27–29 subdigital lamellae under the fourth toe; subcaudal region yellowish, with smooth scales and a single enlarged median row; black gular markings in males and females; and 17.24–22.36% uncorrected pairwise sequence divergences. Cnemaspisadangrawisp. nov. was found to be a member of the C.siamensis group, but is distinguished from all other species in that group by having 10 supralabials and 9 infralabials; 6–8 pore-bearing precloacal scales, pores rounded and arranged in a chevron shape; 23–25 randomly arranged, separated paravertebral tubercle rows; 26–28 subdigital lamellae under the fourth toe; subcaudal scales keeled, without enlarged median row; gular region, abdomen, limbs and subcaudal region yellowish in males only; gular marking absent in males and females; and 8.30–26.38 % uncorrected pairwise sequence divergences. Cnemaspistarutaoensissp. nov. occurs in karst formations on Tarutao Island, while Cnemaspisadangrawisp. nov. is found near granitic, rocky streams on Adang and Rawi islands.


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