Characidium stigmosum Melo & Buckup, 2002

Family:  Crenuchidae (South American darters), subfamily: Characidiinae
Max. size:  4.25 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  South America: central Brazil, Paraná River basin in upper Tocantins River drainage.
Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 12-13; Anal spines: 0-0; Anal soft rays: 8-9; Vertebrae: 32-33. Distinguished from all other Characidium species by the presence of black marks along the sides of the body, superimposed on the vertical bars, which occur in most species of the genus; most of the marks are vertically oriented elliptical, except anteriormost 1-2 marks, which may be roundish or horizontally elongated (Ref. 46824).
Biology: 
IUCN Red List Status: Data deficient (DD); Date assessed: 07 November 2018 Ref. (130435)
Threat to humans:  harmless
Country info:  Type locality, Goiás State, mun. Cavalcante, Goiás, small stream tributary of córrego, Ave Maria, near Santo Antônio farm headquarters, 14 km north of Cavalcante, MZUSP 40804 (holotype of Characidium stigmosum, 3.37 cm SL, male) (Ref. 46824). Also Ref. 37059. from the tributaries of rio das Almas, a left bank tributary of rio Paranã in Goiás State (Ref. 46824). Also Ref. 37059.


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