Description

Dorsal soft rays (total): 10 - 11; Anal soft rays: 20 - 25; Vertebrae: 32 - 34. Hemigrammus durbinae can be diagnosed from most congeners, except H. marginatus, by lacking a conspicuous humeral spot and by having two dark patches of pigmentation on caudal-fin lobes. It differs from H. marginatus by having two conspicuous patches of dark pigmentation occupying most of the caudal-fin lobes, except the tips, which are hyaline (vs. relatively faint dark pigmentation along caudal-fin distal portion, tips of caudal fin dark) and by having two dark narrow stripes along anal-fin base, the first sub-parallel to anal-fin base, extending approximately along region where hypaxial musculature and the muscles of anal fin meet, and the second along anal-fin base (vs. only an inconspicuous dark stripe along anal-fin base present). Other characters useful to differentiate it from H. marginatus include the following: 5-8 pored lateral line scales (vs. 8-14); upper jaw length 32.1-41.6% in head length (vs. 42.3-46.0%); length of dorsal-fin base 9.9-13.1% of SL (vs.13.6-15.1% of SL); length of dorsal-fin length 22.7-27.1% of SL (vs. 27.6-32.6% of SL); and distance from eye to dorsal-fin origin 38.7-45.9% of SL (vs. 34.6-37.8% of SL) (Ref. 101340).

Common Names

No common names available.

Taxonomic Hierarchy

Kingdom: Animalia

Phylum: Chordata

Class: Teleostei

Order: Characiformes

Family: Characidae

Genus: Hemigrammus

Species: Hemigrammus durbinae Ota, Lima & Pavanelli, 2015

Climate Zone

Location

Biology

Found in large floodplain lakes. Stomach contents were composed mainly of terrestrial insects (Ref. 101340).

Habitat

benthopelagic