| Erythrinidae (Trahiras) |
| 29.88 cm SL (male/unsexed) |
|
benthopelagic; freshwater |
| South America: Amazon River basin including rios Capim, Tocantins, Xingu, Tapajós, Trombetas, and Negro; upper Orinoco River basin near the rio Casiquiare; and coastal rivers of Guyana and Suriname. |
|
Dorsal soft rays (total): 13-16; Anal soft rays: 8-10. This species is distinguished from other members of the Hoplias lacerdae group by having the following characters: laterosensory canal along the ventral surface of dentary always with 4 pores that become gradually subdivided into four patches of multiple pores in specimens larger than 6 cm SL; head and body with a dark brown ground coloration; scales on the lateral line 34-39; snout width 13.1-27.2% of HL; and interorbital width 16.0-35.5% of HL. Differs from Hoplias brasiliensis and Hoplias intermedius by its anterior profile of head rounded in lateral view vs. angular (Ref. 81195).
Description: Dorsal-fin rays ii,11-14; ii,11; anal-fin rays ii,6-8; pectoral-fin rays i,10-13; pelvic-fin
rays i,6-7. Longitudinal series of scales between lateral line and pelvic-fin origin 4.5-5.5. Gill rakers on first epibranchial approximately 11, most in form of small denticulated plates (Ref. 81195). |
| Inhabits large rivers and igarapés. Occurs usually in pairs. Exhibits diurnal as well as nocturnal habits and preys on various insects, larvae, small fishes, shrimps, worms and fruits (Ref. 81195). |
|
Least Concern (LC); Date assessed: 07 August 2020 Ref. (130435)
|
| harmless |
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