Simpsonichthys trilineatus
Simpsonichthys trilineatus (Costa & Brasil, 1994)
Descriptions from checklists and floras indexed by GBIF
description
Description Morphometric data appear in Table 4. Largest specimen examined 49.2 mm SL. Dorsal profile convex from snout to end of dorsal-fin base, approximately straight on caudal peduncle. Ventral profile convex from lower jaw to end of anal-fin base, nearly straight on caudal peduncle. Body deep, compressed, greatest body depth at level of pelvic-fin base. Eye positioned on dorsal portion of head side. Snout blunt. Urogenital papilla cylindrical and short in males, pocket-shaped in females. Tip of dorsal and anal fins pointed in males, rounded in females. Filamentous rays on tip of dorsal and anal fins in males, tip of filaments reaching vertical through posterior half of caudal fin. Dorsal-fin rays unbranched. Caudal fin rounded. Pectoral fins elliptical. Posterior margin of each pectoral fin reaching vertical between base of 4 th and 7 th anal-fin rays in males, and through urogenital papilla in females. Tip of each pelvic fin reaching base of 4 th or 5 th anal-fin ray in males, and between base of 1 st or 2 nd anal-fin ray in females. Pelvic-fin bases in close proximity. Anal-fin origin in vertical through base of the 2 nd or 3 rd dorsal-fin ray in males and 1 st ray in female
Taxonomic revision of the seasonal South American killifish genus Simpsonichthys (Teleostei: Cyprinodontiformes: Aplocheiloidei: Rivulidae).
diagnosis
Diagnosis Similar to S. auratus and S. virgulatus, and distinguished from all other species of the S. notatus group by having anterior portion of flanks bright golden in males (vs. dark metallic yellow ochre) and by the presence of a dark brown humeral blotch in males (vs. absence in females). It differs from S. auratus and S. virgulatus by having five (vs. six) pelvic-fin rays, and three purplish brown stripes on posterior half of flanks in males (vs. never this color pattern).
Taxonomic revision of the seasonal South American killifish genus Simpsonichthys (Teleostei: Cyprinodontiformes: Aplocheiloidei: Rivulidae).
distribution
Distribution Middle rio Paracatu floodplains, middle rio Sao Francisco basin, Estado de Minas Gerais, Brazil (Fig. 1).
Taxonomic revision of the seasonal South American killifish genus Simpsonichthys (Teleostei: Cyprinodontiformes: Aplocheiloidei: Rivulidae).
materials_examined
Material examined Brazil: Estado de Minas Gerais, rio Paracatu drainage, rio Sao Francisco basin: MNRJ 12525, holotype, male, 24.3 mm SL; UFRJ 2132, 1 paratype (c & s); Brasilandia; G. C. Brasil, 1 May 1994. MNRJ 12526, 1 paratype; UFRJ 2133, 2 paratypes; same locality as holotype; G. C. Brasil, 1 Jun. 1994. UFRJ 4637, 140; UFRJ 4670, 10 (c & s); UFRJ 5272, 2; UMMZ 234762, 14; same locality as holotype; W. J. E. M. Costa, D. Belote, G. Neves & D. Almeida, 10 Apr. 1998. UFRJ 4749, 2; same locality as holotype; D. Nielsen & A. Carletto, 1 May 1996.
Taxonomic revision of the seasonal South American killifish genus Simpsonichthys (Teleostei: Cyprinodontiformes: Aplocheiloidei: Rivulidae).
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Every page naming Simpsonichthys trilineatus in the Biodiversity Heritage Library →
From the GBIF Backbone Taxonomy and occurrence records (GBIF.org), with Wikipedia and the Source Library. GBIF species 2349213.