Colombian sand eel (Bascanichthys gaira) is a ray-finned fish of the family Ophichthidae. It inhabits marine (saltwater) waters in benthic environments. This species can reach a maximum total length of 47.7 cm. With a trophic level of 3.7, it is a mid-level predator.
This species isi distinguished by the following characters: elongate, markedly bicolored, dark brown dorsally and light brown almost cream ventrally, head and snout are dark, fins pale without marks, sex unrecognized; proportions as % of TL: head 4.6-5.3, trunk 47.9-51.7, tail 43.8-47.9; depth (at gill opening) 1.2-1.5; depth (at anus) 1-1.1; predorsal length 2.1-2.4; snout 12.4-12.7; eye 4.1-5.5; interorbital width 6.9-9.7; pectoral-fin length 6.4-7.0 mm; pores SO 1 + 3, IO 4 + 2, POM 4 + 2, STC 3; pectoral fin minute, its base corresponding to 12.3-24.7% of gill-opening length; uniserial mandibular teeth .Cross section: oval.
Behavioural data for Colombian sand eel is currently being reviewed.
Marine; demersal. Tropical Central Atlantic: Caribbean, Colombia.
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