Cynolebias attenuatus Costa, 2001

Family:  Rivulidae (Rivulines), subfamily: Cynolebiinae
Max. size:  10.53 cm SL (male/unsexed); 7.08 cm SL (female)
Environment:  benthopelagic; freshwater
Distribution:  South America: middle São Francisco River basin in Brazil.
Diagnosis:  Dorsal soft rays (total): 15-18; Anal soft rays: 18-21; Vertebrae: 36-36. Slender males with red spots on the head. Dorsal-fin rays 16-18 in males, 15-17 in females; anal-fin rays 19-21 in males, 18-19 in females; caudal-fin rays 28-30. Caudal and pectoral fins rounded. Snout slightly pointed with lower jaw slightly elongated. Supraorbital neuromasts 30-35 (Ref. 40938).
Biology: 
IUCN Red List Status: Least Concern (LC); Date assessed: 18 May 2022 Ref. (130435)
Threat to humans:  harmless


Source and more info: www.fishbase.org. For personal, classroom, and other internal use only. Not for publication.