| Fluviphylacidae (American lampeyes) |
| 1.73 cm SL (male/unsexed) |
|
benthopelagic; freshwater |
| South America: Upper Rio Negro basin. |
|
Dorsal soft rays (total): 5-6; Anal soft rays: 7-8; Vertebrae: 27-27. Absence of an expanded upper tip of the cleithrum, a plesiomorphic condition that distinguishes this species from its congeners; anterior portion of supraorbital, postorbital and upper portion of preopercular canals closed; pelvic fin of males short, tip reaching base of third anal-fin ray; anal fin of males rounded and short, tip reaching a vertical through middle of dorsal-fin base; mesethmoid rounded; anterodorsal process of opercle short; ventral process of posttemporal elongate; branchiostegal rays 5; rostral cartilage present. |
| Feeds on autochthonous micro-algae and detritus in a swamp (Urubaxi, Brazil) and on allochthonous invertebrates and detritus in an island lake (Buiú-Açu, Brazil). |
|
Least Concern (LC); Date assessed: 07 November 2018 Ref. (130435)
|
| harmless |
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