Ambassis agrammus Günther, 1867
Sailfin glass perchlet
Ambassis agrammus
photo by JJPhoto

Family:  Ambassidae (Asiatic glassfishes)
Max. size:  7.5 cm SL (male/unsexed)
Environment:  demersal; freshwater; brackish
Distribution:  Oceania: Two isolated populations, Northern Territory coastal streams from Victoria River to McArthur River and Cape York Peninsula, Queensland north of about 15°S. Also recorded from central southern New Guinea (Ref. 5259, 2847).
Diagnosis:  Dorsal spines (total): 8-8; Dorsal soft rays (total): 7-10; Anal spines: 3-3; Anal soft rays: 7-10
Biology:  Found in streams, ponds, and swamps (Ref. 5259). Inhabits rivers and creeks flowing through rainforest, sometimes in stagnant pools or slowly flowing rivulets. Also occurs along the margins of swamps and lakes. Usually forms large aggregations that shelter among aquatic vegetation. The breeding season coincides with the onset of monsoonal spring rains (Ref. 44894). Feeds on micro-crustaceans, insects, small arachnids, fish and algae (Ref. 2847).
IUCN Red List Status: Least Concern (LC); Date assessed: 12 February 2019 Ref. (130435)
Threat to humans:  harmless


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