Thryssa marasriae Wongratana, 1987
Marasri's thryssa
photo by FAO

Family:  Engraulidae (Anchovies), subfamily: Coiliinae
Max. size:  6.9 cm SL (male/unsexed)
Environment:  pelagic-neritic; brackish; marine; depth range 0 - 50 m
Distribution:  Western Central Pacific: northern Australia.
Diagnosis:  Dorsal spines (total): 0-0; Anal spines: 0-0; Anal soft rays: 26-28. Belly with 15 or 16 + 8 or 9 = 23 to 25 keeled scutes from isthmus to anus. Maxilla short, reaching to hind border of pre-operculum; first supra-maxilla short, about half length of second. Pseudobranch moderate. A diffuse dark saddle just before dorsal fin origin; no dark blotch behind gill opening.
Biology:  Presumably marine, pelagic and coastal, but its very close similarity to T. aestuaria and T. brevicauda suggests that it may also enter estuaries. More data needed.
IUCN Red List Status: Least Concern (LC); Date assessed: 28 February 2017 Ref. (130435)
Threat to humans:  harmless


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