Clarias batu

Short description: Species of fish

Clarias batu

Conservation status

Critically Endangered (IUCN 3.1)[1]

Scientific classification
Kingdom:  | Animalia
Phylum:  | Chordata
Class:  | Actinopterygii
Order:  | Siluriformes
Family:  | Clariidae
Genus:  | Clarias
Species:  |

C. batu

Binomial name
Clarias batu

K. K. P. Lim & H. H. Ng, 1999[2]

Clarias batu is only known from Tioman Island, Malaysia

Clarias batu (sometimes known under the common name Tioman walking catfish) is a species of clariid catfish. It is only known from Tioman Island off the eastern coast of Peninsular Malaysia.[3] The eel-like catfish found on this island were originally identified as the widespread species Clarias nieuhofii but comparison of a large series of specimens from Tioman with a series of C. nieuhofii from the mainland revealed consistent and distinctive differences indicating a separate species.[2]

This is an elongated catfish up to 30.5 cm (12.0 inches) standard length.[3] It can most readily be distinguished from C. nieuhofii by the fact that the dorsal and anal fins are clearly separated from the caudal fin whereas C. nieuhofii has all these fins confluent. Care should be taken however as specimens of C. batu have been recorded which have apparently confluent fins as a result of healing after suffering damage.[2]

## References

1. ↑ Ng, H.H. (2019). "Clarias batu". IUCN Red List of Threatened Species 2019: e.T180855A1670425. doi:10.2305/IUCN.UK.2019-2.RLTS.T180855A1670425.en. https://www.iucnredlist.org/species/180855/1670425. Retrieved 11 July 2021.
2. ↑ 2.0 2.1 2.2 Lim, K. K. P.; Ng, H. H. (1999). "Clarias batu, a new species of catfish (Teleostei: Clariidae) from Pulau Tioman, Peninsular Malaysia". Raffles Bulletin of Zoology. Supplement 6: 157–167. http://rmbr.nus.edu.sg/rbz/biblio/s6/s6rbz003-004.pdf. Retrieved 2013-10-19.
3. ↑ 3.0 3.1 Froese, Rainer and Pauly, Daniel, eds. (2019). "Clarias batu" in FishBase. December 2019 version.

Wikidata ☰ Q3756216 entry

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