Bibarba parvoculus

Wu, Yang and Xiu 2015

CypriniformesCobitoidei Cobitidae


Bibarba micoculum  Lan, Gan, Wu and Yang 2013 nomen nudum

Lan, Gan, Wu and Yang (2013) provide a brief account of a species they call Bibarba micoculum which they say has already been described in a separate publication. Certainly the account in Lan et al. (2013) does not consitute a description (International Code of Zoological Nomenclature 1999 Article 13) so the species name cannot be available from this account. A search of the internet finds only one use of this name in a scientific publication, Chen et al. (2015), which is a study of fossil cobitids in China and not a description of the species. Specimens referred to Bibarba micoculum were used in this paper for comparisons of spines in different cobitid taxa and the specimens of micoculum were provided by Yang Jian, the fourth author of Lan et al. (2013). The Catalogue of Fishes (Eschmeyer, Fricke and van der Laan 2018) does not mention the name micoculum, even as un unavailable name. The fish was formally described by Wu, Yang and Xiu (2015) as Bibarba parvoculus. The Yang in this authorship is Jian Yang of Lan et al. (2013). The paper in which parvoculus is available was accepetd by Zootaxa on 24 November 2014 and so the statement in Lan et al. (2013) that the name micoculum was already published cannot be correct. Bibarba micoculum is a nomen nudem and a synonym of Bibarba parvoculus.




Holotype: GAFS 10110586 ♂ 51.7mm SL. Paratypes: GAFS 10110583 57.3mm SL, GAFS 08090070, GTEU 10110584, GTEU 10110585 (three ♀ 52.5-57.3mm SL).


Known only from the type locality: A cave at Jicheng village, Tianhe Town, Luocheng County, Guangxi, China, 232 meters (24°47'55.65"N, 108°44'40.27"E).


Bibarba parvoculus coexists in the same cave pool with Troglonectes microphthalmus, Sinocyclocheilus brevis and Pterocryptis anomala (Siluridae). [Lan et al. (2013) say that the latter species is Pterocryptis cochinchinesis].


The relationship between Bibarba bibarba and B. parvocula is not known, Both are found in the same Chinese province.

Conservation Status


Lan et al. (2013) state that: "The population size is very small. In 2004, specimens were seen, but could not be collected. Repeated subsequent trips to the collection site were unsuccessful. The first specimen was collected on the 20th September 2008, and four specimens were collected in November 2010 ... It is recommended that the relevent authorities make this cave a protected area, in order that these rare fish receive effective protection."

Museum Holdings

As above only.

Key References

Chen, Y-X. and Chen, Y-F. Journal Article 2007 Bibarba bibarba: A new genus and species of Cobitinae (Pisces: Cypriniformes: Cobitidae) from Guangxi Province (China)
Kottelat, M. Journal Article 2012 Conspectus cobitidum: An inventory of the loaches of the world (Teleostei: Cypriniformes: Cobitoidei)
Lan, J.H., Gan, X., Wu, T.J. and Yang, J. Book 2013 Cave fishes of Guangxi, China
Wu, T.J., Yang, J. and Xiu, L.H. Journal Article 2015 A new species of Bibarba (Teleostei: Cypriniformes: Cobitidae) from Guangxi, China