Parambassis siamensis (Fowler, 1937)
Parambassis siamensis
photo by Baird, I.G.

Family:  Ambassidae (Asiatic glassfishes)
Max. size:  7.5 cm SL (male/unsexed)
Environment:  demersal; freshwater
Distribution:  Asia: middle and lower Mekong basin and in lowland rivers throughout Thailand, the Malay Peninsula and Java, Indonesia (Ref. 10429). Has been successfully introduced to Singapore (Ref. 38466).
Diagnosis:  A conspicuous black blotch at the tip of the spinous dorsal fin; a dark vertically elongated blotch behind the upper extremity of the gill opening (may be very weak or absent); the second anal spine not much enlarged.
Biology:  Inhabits medium to large-sized rivers and flooded fields of the middle Mekong (Ref. 12975). Found in the basin-wide tributary of the lower Mekong (Ref. 36667). Occurs in lowland swamps and rivers (Ref. 57235). Oviparous (Ref. 205).
IUCN Red List Status: Least Concern (LC); Date assessed: 20 November 2019 Ref. (130435)
Threat to humans:  harmless


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