Cynolebias Parietalis (Cynolebias parietalis), first described by Costa, 2014 is a small fish in the family Rivulidae (order Cyprinodontiformes). Adults typically reach 7.70 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator.
Dorsal soft rays (total): 19; Anal soft rays: 19 - 22; Vertebrae: 35 - 37. Cynolebias parietalis can be diagnosed from all species of C. perforatus group by having united supraorbital and parietal series of neuromasts (vs. separate) and basihyal width about 70-75% of basihyal length (vs. about 50-65%). It further differs from all members of the C. perforatus group, with the exception of C. perforatus, by having 33-35 rays on caudal fin (vs. 28-32) .: fusiform / normal.
Behavioural data for Cynolebias Parietalis is currently being reviewed.
Freshwater; benthopelagic. Tropical South America: temporary pools in the floodplains of the Verde Grande river, São Francisco River basin in Brazil.
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