Leptodoras hasemani (Steindachner, 1915)
photo by Sabaj Pérez, M.H.

Family:  Doradidae (Thorny catfishes), subfamily: Doradinae
Max. size:  22.8 cm TL (male/unsexed); max.weight: 180.0 g
Environment:  demersal; freshwater
Distribution:  South America: Branco, Orinoco and Essequibo River basins (Ref. 37054), forming a ring around the western Guiana Shield (Ref. 79526). Recently collected from the middle Tapajós, extending the range of this species to the Brazilian Shield (Ref. 79526).
Diagnosis:  Dorsal spines (total): 1-1; Dorsal soft rays (total): 6-6; Anal soft rays: 14-16. Presence of a large black blotch in the distal half of the anterior dorsal-fin rays and membranes. Basal portion of the lower labial extension is uniformly widened and flat compared to other Leptodoras (Ref. 56896).
Biology:  Collected from the main channels of large rivers and often associated with large sandy beaches (Ref. 56896).
IUCN Red List Status: Least Concern (LC); Date assessed: 29 July 2020 Ref. (130435)
Threat to humans:  harmless


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