AMPHIBIAWEB
Pseudohynobius guizhouensis

Subgenus: Pseudohynobius
family: Hynobiidae
subfamily: Hynobiinae
 
Species Description: Li S, Tian Y-Z and Gu X-M 2010. A new species of the genus Pseudohynobius (Caudata, Hynobiidae) from Guizhou, China. Acta Zootaxonomica SInica 35(2): 407-412 (in Chinese with English abstract).

AmphibiaChina 中国两栖类.

Conservation Status (definitions)
IUCN (Red List) Status
CITES
Other International Status None
National Status None
Regional Status None

Country distribution from AmphibiaWeb's database: China

 

View distribution map using BerkeleyMapper.

   

From the Encyclopedia of Life account:

Distribution

This species is so far only known from Mount Doupeng, at the borders of three counties (Guiding, Duyun and Majiang, Guizhou Province, China). The limits of its range are unknown.


Authors: Wu, Yunke; Sparreboom, Max
License: http://creativecommons.org/licenses/by-nc/3.0/

Morphology

Summarized from Li et al. (2010). A relatively large salamander. Head oval, slightly flattened. Premaxillary fontanelle large. Snout rounded. Distance between nostrils larger than that between eyes. Vomerine teeth series have 12–17 teeth on each side. Trunk cylindrical, slightly flattened. Vertebral groove conspicuous. 12–13 costal grooves. When limbs are adpressed, digits only meet. Dorsal caudal fin starts from tail base; ventral caudal fin starts 6mm after cloaca. In life, dorsal coloration purplish brown with oval orange or yellow spots. Small white spots absent from dorsum but present on venter. Females tend to have more ventral spots.


Authors: Wu, Yunke; Sparreboom, Max
License: http://creativecommons.org/licenses/by-nc/3.0/

Size

All measurements are from Li et al. (2010).

Male (3 specimens). Total length: 173.6–184 mm; snout-vent length: 91.5–95.4 mm; Head length: 22.7–23.5 mm; Head width: 14–15.1 mm; forelimb length: 21.6–24.6 mm; hind-limb length: 26.2– 27 mm.

Female (3 specimens). Total length: 157.1–203.4 mm; snout-vent length: 91.5–106.8 mm; Head length: 22.7–25.5 mm; Head width: 14–16.5 mm; forelimb length: 21.6–26 mm; hind-limb length: 26.9–31.2 mm.


Authors: Wu, Yunke; Sparreboom, Max
License: http://creativecommons.org/licenses/by-nc/3.0/

Diagnostic Description

Dorsal coloration purplish brown with oval orange or yellow spots. Small white spots absent from dorsum but present on venter. 17 vertebrae (Li et al., 2010).


Authors: Wu, Yunke; Sparreboom, Max
License: http://creativecommons.org/licenses/by-nc/3.0/

Look Alikes

This species resembles Pseudohynobius kuankuoshuiensis, but differs from the latter species by the presence of small white ventral spots, 17 vertebrae (vs. 18 in the latter species). Li et al. (2010) suggest that P. guizhouensis further differs from P. kuankuoshuiensis by the shape of frontal bones, the lack of a suture between left and right parietal bones and the shape of Y-cartilage of the pelvic girdle. However, it is not known how many specimens of each species were used in this osteological comparison.


Authors: Wu, Yunke; Sparreboom, Max
License: http://creativecommons.org/licenses/by-nc/3.0/

Habitat

Pseudohynobius guizhouensis inhabits montane forest at elevations of 1,400–1,700 m. Streams are covered by dense bamboo forest and other bushes. Outside the breeding season, adults are found far from streams under a thick layer of fallen leaves. Larvae are found in streams, where water is slow, shallow and clean (~2m wide, <40 cm deep).


Authors: Wu, Yunke; Sparreboom, Max
License: http://creativecommons.org/licenses/by-nc/3.0/

Reproduction

Breeding season is unknown. Larvae were collected from March to July, with total lengths ranging from 66.6–74.4 mm (Li et al., 2010).


Authors: Wu, Yunke; Sparreboom, Max
License: http://creativecommons.org/licenses/by-nc/3.0/

Evolution

Relationships to other species of Pseudohynobius are unknown. But Li et al. (2010) report that P. guizhouensis is separated from P. kuankuoshuiensis, P. shuichengensis and P. flavomaculatus by 11.6%, 12.1% and 17.8% respectively in mitochondrial sequence data.


Authors: Wu, Yunke; Sparreboom, Max
License: http://creativecommons.org/licenses/by-nc/3.0/

Conservation

Data are insufficient to make a statement about its conservation status.


Authors: Wu, Yunke; Sparreboom, Max
License: http://creativecommons.org/licenses/by-nc/3.0/