AG Zoologischer Garten Cologne

Köln, Germany

AG Zoologischer Garten Cologne

Köln, Germany

Time filter

Source Type

Nguyen T.Q.,Vietnam Academy of Science and Technology | Phung T.M.,Dong Khoi 9A | Le M.D.,National American University | Ziegler T.,AG Zoologischer Garten Cologne | Bohme W.,Herpetology Section
Copeia | Year: 2013

The genus Oreolalax is reported from Vietnam for the first time and a new species is described based on morphological differences, molecular divergence, and phylogenetic placement Morphologically, the new species is distinguishable from its congeners on the basis of a combination of the following diagnostic characters: size small; tympanum hidden; toes with webbing at base; dorsum with distinct, round, spiny warts; flanks with white, spiny spots; belly and lower surface of limbs smooth, with dark marbling; interorbital region without dark triangular pattern; upper surface of thigh with dark bars; male with black spines present on margin of lower lip, spinal patches on chest small with fine spines, nuptial spines on fingers small, and without vocal sacs In phylogenetic analyses, the new species is unambiguously nested within the genus Oreolalax © 2013 by the American Society of Ichthyologists and Herpetologists.


Schneider N.,AG Zoologischer Garten Cologne | Nguyen T.Q.,Institute of Ecology and Biological Resources | Schmitz A.,Museum dHistoire Naturelle | Kingsada P.,National University of Laos | And 2 more authors.
Zootaxa | Year: 2011

We describe a new species of the gekkonid genus Cyrtodactylus from northwestern Laos, based on a recent collection from Vientiane Province. Cyrtodactylus pageli sp. n. is distinguished from the remaining bent-toed-geckos by the combination of the following characters: snout-vent length up to 81.8 mm; 9-12 supralabials; 9 infralabials; 9-14 rows of dorsal tubercles; no distinct lateral body fold; 41-46 midbody ventrals; precloacal pores present in both sexes (males 4, females 5 or 6); no precloacal groove; femoral scales not distinctly enlarged; no femoral pores; subdigital lamellae under the fourth toe 19-26; subcaudals transversally enlarged; dark nuchal band, followed by a transversal row of dark neck blotches (rarely forming an additional transversal neck band) in-between nuchal band and first body band; 5 in part irregular dark dorsal bands between limb insertions plus transversal band between hind limbs; tail with banded pattern. Copyright © 2011 - Magnolia Press.


Rosler H.,Senckenberg Naturhistorische Sammlungen Dresden | Nguyen T.Q.,Institute of Ecology and Biological Resources | Van Doan K.,Institute of Ecology and Biological Resources | Ho C.T.,Institute of Ecology and Biological Resources | And 2 more authors.
Zootaxa | Year: 2010

We describe a new species of the gekkonid genus Gekko from northern Vietnam on the basis of four specimens from Lang Son and Lao Cai provinces. Gekko canhi sp. n. is distinguished from the remaining congeners by the combination of the following characters: body size moderate (SVL < 100 mm); supralabials 12-14, infralabials 10-13; nares in contact with rostral, internasal single, nasals 3; interorbitals 47-50; dorsal tubercle rows 10-13; scales between mental and cloacal slit 205-229; midbody scales 164-170; subdigital lamellae below first toe 13-16, below fourth toe 14-17; extensive webbing between fingers and toes minimal; tibial tubercles present; precloacal pores 5; postcloacal tubercles 2-3; tail round, not thickened at base; caudal tubercles present; subcaudals enlarged. We also provide new information on the taxonomy and distribution of G. japonicus in Vietnam. Copyright © 2010 Magnolia Press.


Nguyen T.Q.,Institute of Ecology and Biological Resources | Kingsada P.,National University of Laos | Rosler H.,Senckenberg Naturhistorische Sammlungen Dresden | Auer M.,Senckenberg Naturhistorische Sammlungen Dresden | Ziegler T.,AG Zoologischer Garten Cologne
Zootaxa | Year: 2010

We describe a new species of the gekkonid genus Cyrtodactylus from northern Laos, based on four specimens fro Luang Nam Tha Province. Cyrtodactylus wayakonei sp. n. is distinguished from the remaining bent-toed-geckos by the combination of the following characters: snout-vent length up to 90 mm; 7-8 supralabials; 9-10 infralabials; rostrum bearing smooth scales; 34-45 scales between fifth supralabials; dorsal tubercles smooth or slightly keeled; 17-19 dorsal tubercle rows; ventrolateral folds slightly developed, with large tubercles; 31-35 ventrals; 85-98 scales around midbody; 151-163 scales between mental and cloacal slit; 6-8 precloacal pores in both sexes; precloacal groove lacking; enlarged femoral scales absent; femoral pores lacking; subcaudals somewhat enlarged, broadened; tail tubercles flat, smooth; head and dorsum with blotched to reticulated pattern. Copyright copy; 2010 · Magnolia Press.


Nguyen T.Q.,Vietnam Academy of Science and Technology | Le M.D.,National American University | Pham C.T.,Vietnam Academy of Science and Technology | Nguyen T.T.,Vietnam Academy of Science and Technology | And 2 more authors.
Organisms Diversity and Evolution | Year: 2013

We describe a new species of small tree frog from northern Vietnam based on morphological differences and molecular divergence. Gracixalus waza sp. nov. is distinguishable from its congeners and other small rhacophorid species on the basis of a combination of the following characters: (1) size small (snout-vent length of males 27.1-32.9 mm, of females 37.6 mm); (2) head as wide as or wider than long; (3) vomerine teeth absent; (4) snout rounded and long (16-18 % of the snout-vent length); (5) spines on upper eyelid absent; (6) tibiotarsal projection absent; (7) dorsal skin smooth; (8) dermal fringes on forearm and tarsus absent; (9) dorsal surface of head and body greyish-green to moss-green with dark brown pattern forming an inverse Y marking; and (10) throat and chest with dark marbling. Our molecular data showed that the new species is nested in the same group with Gracixalus jinxiuensis sensu lato. © 2012 Gesellschaft für Biologische Systematik.


Quang Nguyen T.,Institute of Ecology and Biological Resources | Schmitz A.,Museum dHistoire Naturelle | Nguyen T.T.,Vietnam National Museum of Nature | Orlov N.L.,Russian Academy of Sciences | And 2 more authors.
Journal of Herpetology | Year: 2011

We describe a new forest skink species of the genus Sphenomorphus based on specimens from northern Vietnam and from Hainan Island, southern China. The new species is differentiated from the congeners by the combination of the following characters: size small (SVL 35.8-48.8 mm); prefrontals in contact with each other mesially; supralabials seven; primary temporals two; external ear opening present, without lobules, tympanum slightly sunk; midbody scales in 32-34 rows; dorsal scales smooth, paravertebral scales 65-72, not widened; limbs well developed, pentadactyl; 15-19 smooth lamellae under fourth toe; free margins of upper and lower eyelids edged in white; neck, dorsum, and tail base bronze-brown with a discontinuous dark vertebral stripe; upper lateral zone black, interrupted by small light spots from behind the neck. In addition, we provide a review of Vietnamese Sphenomorphus with the first country record of Sphenomorphus mimicus. The generic allocation of Sphenomorphus devorator (allocated to Scincella), Leptoseps tetradactylus (allocated to Sphenomorphus), and Livorimica bacboensis (allocated to Sphenomorphus) is discussed. © 2011 Society for the Study of Amphibians and Reptiles.


David P.,CNRS Systematics, Biodiversity and Evolution Institute | Nguyen T.Q.,Institute of Ecology and Biological Resources | Schneider N.,AG Zoologischer Garten Cologne | Ziegler T.,AG Zoologischer Garten Cologne
Zootaxa | Year: 2011

A new species of the gekkonid genus Cyrtodactylus Gray, 1827, Cyrtodactylus teyniei spec. nov., is described based on a single adult female from Borikhamxay Province, central Laos. It is distinguished from any other Cyrtodactylus species by the combination of the following characters: (1) SVL 89.9 mm, (2) longitudinal rows of dorsal tubercles 19, (3) ventral scales in 38 rows between ventrolateral skin folds, (4) ventrolateral skin folds without tubercles, (5) enlarged femoral and precloacal scales 54 (precloacal scales 8, plus 23 femoral scales on each side), (6) precloacal depression lacking, (7) precloacal pores 14, (8) subdigital lamellae under the firth toe 19-20, (9) enlarged median subcaudals, and (10) nuchal band absent, dorsum with blotched pattern. An extended comparison with other species of the genus Cyrtodactylus, in particular species recently described from Laos and Vietnam, is provided. Cyrtodactylus teyniei spec. nov. is the seventh species of Cyrtodactylus known to occur in Laos. Copyright © 2011 · Magnolia Press.


Luu V.Q.,University of Cologne | Luu V.Q.,AG Zoologischer Garten Cologne | Calame T.,WWF Greater Mekong | Bonkowski M.,University of Cologne | And 3 more authors.
Zootaxa | Year: 2014

We describe a new species of the genus Cyrtodactylus based on two adult specimens from Khammouane Province, Laos. Cyrtodactylus jaegeri sp. nov. is distinguished from the remaining Indochinese bent-toed geckos by a combination of the following characters: a moderately sized Cyrtodactylus with a maximum SVL reaching 68.5 mm; dorsal pattern consisting of a dark nuchal loop and four narrow brown body bands between limb insertions; dorsal tubercles in 15-17 irregular rows; ventrals in 31-32 longitudinal rows at midbody; lateral skin folds present with interspersed tubercles; precloacal-femoral pores 44 in the male, in a continuous series; enlarged femoral scales and precloacal scales present; postcloacal tubercles 3-6; subcaudals transversely enlarged. Cyrtodactylus jaegeri sp. nov. is the ninth species of Cyrtodactylus known from Laos. Copyright © 2014 Magnolia Press.


Nguyen Q.T.,Institute of Ecology and Biological Resources | Nguyen V.S.,Institute of Ecology and Biological Resources | Bohme W.,Zoologisches Forschungsmuseum Alexander Koenig | Ziegler T.,AG Zoologischer Garten Cologne
Folia Zoologica | Year: 2010

We describe a new species of Scincella similar to Sphenomorphus tridigitus based on a single specimen from Lang Son Province, northeastern Vietnam. The new species differs from he latter by presence of lower eyelids with undivided opaque window, forelimbs with fi ve digits, and by absence of prefrontals. Scincella apraefrontalis sp. n. isdistinguished from all other species of Scincella and all other Asianlimbreduced lygosomines by a combination of the following characters:no supranasals; no prefrontals; nasal and fi rst supralabial fused; six supralabials; lower eyelid with undivided opaque disc; no externalear openings; 18 midbody scale rows; and pentadactyl limbs.


My Phung T.,Dong Khoi 9A | Ziegler T.,AG Zoologischer Garten Cologne
Zootaxa | Year: 2011

We describe a new species of the gekkonid genus Gekko from southern Vietnam on the basis of three adult specimens from Cuc Dong Cape, Ninh Hoa District, Khanh Hoa Province. Gekko truongi sp. n. is distinguished from congeners by the combination of the following characters: medium-sized species with a maximum 95.9 mm SVL; supralabials 13-15; postmentals enlarged; interorbitals 45-58; dorsal tubercles absent; well developed lateral folds; scales between mental and cloaca 160-172; ventrals 35 or 36; subdigital lamellae below first toe 11-13, below fourth toe 15-17; faint basal webbing between fingers and toes; precloacal pores in males 10 or 11; postcloacal tubercles in males 1/1; number of transverse dorsal scale rows in the middle of the third caudal whorl 11; a prominent light postocular stripe is lacking; dorsum grey with dark pattern and light blotches and lines. Copyright © 2011 Magnolia Press.

Loading AG Zoologischer Garten Cologne collaborators
Loading AG Zoologischer Garten Cologne collaborators