Metadata

Triplophysa gejiuensis

(Chu and Chen 1979) Chen, Yang and Xu 1992

Triplophysa gejiuensis
From Chen, Decu, Juberthie and Ueno (2001)
ORDERSUB-ORDERFAMILY
CypriniformesCobitoidei Nemacheilidae

Synonyms

Noemacheilus gejiuensis  Chu and Chen 1979

Country

China

Types

Holotype: KIZ 7803001 49mm "body length". Paratypes: KIZ 7803002‑7803008 42mm‑ 52mm "body length".

Distribution

Known only from the type locality, a cave entered from a mine (no natural entrance known) at Bajianjing, 4 km from Qiafang and 22 km south of Gejiu, in the mountains of Yunnan, subordinate to the Qiafang Peoples Commune, Yunnan, China (23o20’N, 103o10’E).

Habitat

Nothing known. The fishes were collected in a series of passages breeched by a mine tunnel. A stream flows from one phreatic region to another across the tunnel and it was in this that the fishes were collected.

Systematics

Nalbant and Linares (1987) placed this species in the genus Triplophysa but without giving their reasons. Chen, Yang and Xu (1992) re-examined the type specimens of this species and of Noemacheilus xiangxiensis. They concluded that both were members of the genus Triplophysa because of an absence of a procesus dentiformis on the upper jaw and the presence, in males, of a raised tuberculate area below the nares and thickened tuberculate pads on the back of the pectoral fin rays.

Conservation Status

[VU D2:2.3:1996]

(Kottelat, M. 1996. Triplophysa gejiuensis. The IUCN Red List of Threatened Species 1996: http://dx.doi.org/10.2305/IUCN.UK.1996.RLTS.T22201A9364327.en. Downloaded on 05 July 2017). R (IUCN 1990, 1993). Yue and Chen (1998:199-200) record that the water in the stream occupied by this species is being abstracted for industrial and domestic use. They comment “... they are now almost extinct and up to now they have not been discovered in any other karst caves.”  It seems likely that a higher level of threat status is appropriate for this species.

Museum Holdings

One specimen in addition to type series (42mm "body length"), same location. Dissected and found to be a gravid female.

Key References

Need to add Li et al. 2017, not yet in biblio.

Chu, S. and Chen, Y. Journal Article 1979 A new blind cobitid fish (Pisces, Cypriniformes) from subterranean waters un Yunnan, China
Nalbant, T. T. and Linares, O. Book Section 1987 A study of a subterranean population of Trichomycterus guianense (Eigenmann, 1909) from Venezuela (Pisces, Siluriformes, Trichomycteridae)
Zhu, S. Q. Book 1989 The loaches of the subfamily Nemacheilinae in China (Cypriniformes, Cobitidae)
Yang, J. X. Book Section 1990 Nemacheilinae (Cypriniformes: Cobitidae)
Chen, Y. R., Yang, J. X. and Xu, G. C. Journal Article 1992 A new blind loach of Triplophysa from Yunnan Stone Forest with comments on its phylogenetic relationship
Yang, J. X. and Chen, Y. R. Journal Article 1993 The cavefishes from Jiuxiang Limestone Cave of Yunnan, China with reference to character evolutions
Zhou, W. and Cui, G. H. Journal Article 1993 Status of the scaleless species of Schistura in China, with description of a new species (Teleostei, Balitoridae)
Yue, P. and Chen, Y. Book 1998 China Red Data Book of Endangered Animals. Pisces
Kottelat, M Journal Article 2012 Conspectus cobitidum: An inventory of the loaches of the world (Teleostei: Cypriniformes: Cobitoidei)
Zhang, C. G. and Zhou, YH Book 2016 Species diversity and distribution of inland fishes in China
Zhang, Y., Wang, Z., Zhang, Z., Wu, M.. Chen, J. and Zhao, Y. Journal Article 2018 The complete mitochondrial genome of Triplophysa brevibarba with phylogenetic consideration