Ambassis urotaenia Bleeker, 1852
Banded-tail glassy perchlet
Ambassis urotaenia
photo by FAO

Family:  Ambassidae (Asiatic glassfishes)
Max. size:  14 cm TL (male/unsexed)
Environment:  demersal; freshwater; brackish; marine, amphidromous
Distribution:  Indo-Pacific: East Africa to the Philippines, Fiji and Carolines, north to Sagami Bay, Japan (Ref. 559).
Diagnosis:  Dorsal spines (total): 8-8; Dorsal soft rays (total): 9-10; Anal spines: 3-3; Anal soft rays: 9-10. Body all silvery and translucent with a dusky midlateral band. Back margin evenly dark. Membrane between 2nd and 3rd dorsal spine blackish. Mouth strongly oblique. Margin almost straight from the origin of the 1st dorsal snout.
Biology:  Common in brackish waters near river mouths where it occurs in schools; sometimes found in upper streams (Ref. 559). Mainly marine but enters rivers (Ref. 4967).
IUCN Red List Status: Least Concern (LC); Date assessed: 21 September 2020 Ref. (130435)
Threat to humans:  harmless
Country info:  Specimens were collected from Kiga creek and Ambacan River at Baybay, Leyte in 1993 (Ref. 7223). Reported from Lake Taal and Lake Naujan (Ref. 13446). Also Ref. 4180.


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