Spintherobolus ankoseion Weitzman & Malabarba, 1999
photo by Gazola da Silva FF & Vitule JRS

Family:  Characidae (Characins; tetras), subfamily: Spintherobolinae
Max. size:  2.79 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  South America: Atlantic versant rivers from northern Santa Catarina to southern ParanĂ¡, Brazil.
Diagnosis:  Dorsal soft rays (total): 10-11; Anal soft rays: 14-17; Vertebrae: 32-33. Low vertebral count (32-33) versus 32-34 for S. broccae and S. leptoura; larger preanal distance in males (61.3-63.9% SL versus 55.9-61.5 for S. broccae and 57.3-61.9 for S. leptoura.
Biology:  Inhabits lower elevations of coastal blackwater streams that drain the surrounding forests.
IUCN Red List Status: Vulnerable (VU); Date assessed: 07 November 2018 (B1ab(iii)) Ref. (130435)
Threat to humans:  harmless


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