Nematabramis everetti

Nematabramis: from the Ancient Greek νῆμᾰ (nêma), meaning 'thread', and presumably the generic name Abramis.

everetti: presumably named in honour of British naturalist, civil servant, and administrator in Borneo Alfred Hart Everett (1848-1898), who collected the type series.

Endemic to Borneo, where it is known from the Malaysian states of Sarawak and Sabah, plus the Indonesian provinces East Kalimantan (Kalimantan Timur) and North Kalimantan (Kalimantan Utara).

Type locality is 'Bongon River, Sarawak state, Borneo, East Malaysia'.

Nematabramis species are found a variety of habitat-types, from swiftly-flowing affluent streams to pools, lakes, and degraded swamps. Based on the available collection records juveniles and subadults of N. everetti display a preference for fast-moving water whereas adults are found in deeper, slower stretches of minor tributaries.

Feeds chiefly on terrestrial and aquatic invertebrates taken near the water surface.

Mature females are likely to be deeper-bodied than males.

Apparently prefers to spawn in warm, shallow water.

This species can be distinguished from congeners by the following combination of characters: barbels longer than head and extending to or beyond the centre of the pectoral-fin; body relatively deep, depth fits 2.5-3.5 times in SL; 9-11 scale rows between dorsal-fin origin and anal-fin origin; 8-13 branched dorsal-fin rays; 15-20 branched anal-fin rays.

It also possesses a distinctive dark, vertically-elongate, humeral marking which is much more prominent than in other Nematabramis species.