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Batasio dayi (Vinciguerra, 1890)

Image contributors to this species:

Allan James (1) Johnny Jensen's Photographic Library (3) Cheilinus Aquarium Photography (2)

ScotCat Sources:

Etymology = Genus Etymology = Species

Other Sources:

Fishbase  Search Google  All Catfish Species Inventory  Wikipedia


Relevant Information:

Dorsal spines (total): 1; Dorsal soft rays (total): 7 - 7; Anal spines: 4; Anal soft rays: 8. With a dark brown oblique predorsal bar; distal 4/5 of the dorsal fin dark brown with a narrow hyaline distal margin. Body depth at anus 19.2-20.5% SL; snout length 41-44.6% HL; interorbital distance 22.2-25.8 % HL. Batasio species generally are found in fast-flowing hillstreams. Southeast Asian Batasio will tolerate slightly warmer waters than their Indian counterparts. It appears that all Batasio need a lot of current and a high oxygen content.

Common Name:



Macrones dayi




Asia: Salween and Irrawaddy River drainages in Myanmar. Type locality: Meetan; M.ti a Est di Toungoo (Carin Biapb), Birmania, Myanmar.


8.5cm SL ( 3½ins)


24-27°C (75-81°F)




Ng, H.H. and M. Kottelat 2001 A review of the genus Batasio (Teleostei: Bagridae) in Indochina, with the description of B. tigrinus sp. n. from Thailand. Rev. Suisse Zool. 108(3):495-511.
Ferraris, C.J. Jr., 2007. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628.



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                                                                                 updated = March 9, 2019 © ScotCat 1997-2019