Hypsolebias Ghisolfii (Hypsolebias ghisolfii), first described by Costa, Cyrino & Nielsen, 1996 is a small fish in the family Rivulidae (order Cyprinodontiformes). Adults typically reach 7.30 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. On the IUCN Red List, it is classified as Endangered.The species is a species of conservation concern.
Dorsal soft rays (total): 16 - 25; Anal soft rays: 19 - 24; Vertebrae: 29 - 30. Caudal peduncle of female with black spots. Male's anal fin with gray to black distal stripe, yellow in color; dorsal fin anteriorly pink, posteriorly yellow; basihyal broad, 70-95% in length; vestigial contact organs on flank scales. Second pharyngobranchial teeth, 5-6. Dorsal-fin rays 20-25 in male, 16-20 in female; anal-fin rays 21-24 in male, 19-24 in female; caudal-fin rays 23, caudal fin subtruncate in male, rounded in female. Short filamentous rays on tip of dorsal and anal-fin in male, reaching vertical through middle of caudal fin .: short and / or deep; Cross section: compressed.
Behavioural data for Hypsolebias Ghisolfii is currently being reviewed.
Freshwater; benthopelagic. Tropical South America: São Francisco River basin, Brazil.
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