Eirmotus furvus Tan & Kottelat, 2008

Family:  Cyprinidae (Minnows or carps), subfamily: Cyprininae
Max. size:  3.44 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  Asia: Sumatra, Indonesia.
Diagnosis:  Dorsal soft rays (total): 11-11; Anal soft rays: 8-8; Vertebrae: 30-30. Differs from all congeners by having a wide, very conspicuous and contrasted black bars on the body (width of bar 5 equal to 1½ to 2 lateral row scales). Additional distinguishing characters of this species include bar 1 on snout conspicuous, simple dorsal-fin rays black throughout its length, black pigmentation sometimes reaching the interradial membrane before first branched ray, posterior tip of dorsal fin with a distinct black mark which appears as part of 6, pectoral fin with black upper margin; simple anal-fin rays black on their entire length in adults; all fins dusky with scattered chromatophores on all rays; posterior edge of last simple dorsal-fin ray with 17-21 serrae; presence of a small and distinct black mark immediately anterior to anus, visible in lateral view; mouth terminal with lower jaw wide and anteriorly rounded (Ref. 78741).
Biology:  This is the only member of the genus Eirmotus which occurs in the black waters of peat swamp forest. Encountered only in deep inside the forested area in a less disturbed portion (Ref. 78741).
IUCN Red List Status: Least Concern (LC); Date assessed: 04 January 2019 Ref. (130435)
Threat to humans:  harmless


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