Hillstream loach

Hillstream loach
	Balitoropsis zollingeri
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Cypriniformes
Family:	Balitoridae; Swainson, 1839
Genera[1]
	Balitora; Balitoropsis; Bhavania; Cryptotora; Dienbienia[2]; Ghatsa[3]; Hemimyzon; Homaloptera; Homalopteroides; Homalopterula; Jinshaia; Lepturichthys; Metahomaloptera; Neohomaloptera; Pseudohomaloptera[3]; Sinogastromyzon; Travancoria;

The hillstream loaches or river loaches are a family, the Balitoridae,[1] of small fish from South, Southeast and East Asia. The family includes about 202 species. They are sometimes sold as "lizardfish" or (in Germany) "flossensaugers". Many of the species are popular for aquaria, species in the genus Sewellia are most commonly sold in the aquaria trade. They have a number of similarities with the Cobitidae, their sibling family of "loaches", such as multiple barbels around the mouth. They should not be confused with the loricariids, which look similar but are a family of catfish.

Most species are rheophilic, living in swift, clear and well-oxygenated streams. Several species of the family live in fast-flowing streams or torrents and have modified ventral fins used for clinging to rocks.[4]

The subfamily Nemacheilinae has recently been separated as a distinct family, Nemacheilidae (stone loaches) and several genera have been separated into the family Gastromyzontidae.[1]

References

Kottelat, M. (2012): Conspectus cobitidum: an inventory of the loaches of the world (Teleostei: Cypriniformes: Cobitoidei). Archived 2013-02-11 at the Wayback Machine The Raffles Bulletin of Zoology, Suppl. No. 26: 1-199.
"Dienbienia". WoRMS. World Register of Marine Species. Retrieved 2018-12-20.
Randall, Z.S. & Page, L.M. (2015): On the paraphyly of Homaloptera (Teleostei: Balitoridae) and description of a new genus of hillstream loaches from the Western Ghats of India. Zootaxa, 3926 (1): 57–86.
Banister, K.E. (1998). Paxton, J.R.; Eschmeyer, W.N. (eds.). Encyclopedia of Fishes. San Diego: Academic Press. p. 100. ISBN 0-12-547665-5.

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[Kottelat2012-1] Kottelat, M. (2012): Conspectus cobitidum: an inventory of the loaches of the world (Teleostei: Cypriniformes: Cobitoidei). Archived 2013-02-11 at the Wayback Machine The Raffles Bulletin of Zoology, Suppl. No. 26: 1-199.

[WoRMS-2] "Dienbienia". WoRMS. World Register of Marine Species. Retrieved 2018-12-20.

[Randall2015-3] Randall, Z.S. & Page, L.M. (2015): On the paraphyly of Homaloptera (Teleostei: Balitoridae) and description of a new genus of hillstream loaches from the Western Ghats of India. Zootaxa, 3926 (1): 57–86.

[EoF-4] Banister, K.E. (1998). Paxton, J.R.; Eschmeyer, W.N. (eds.). Encyclopedia of Fishes. San Diego: Academic Press. p. 100. ISBN 0-12-547665-5.