Valdesalici, S. 2016. Nothobranchius streltsovi, a new species of annual killifish with two male Colour Morphs from the Malagarasi drainage, central Tanzania (Teleostei: Cyprinodontiformes: Nothobranchiidae). Ichthyological Exploration of Freshwaters (Ichthyol. Explor. Freshwaters), 27 (2) (November): 156, figs. 1-4. Abstract Nothobranchius streltsovi, new species, is described from specimens collected in pools associated with seasonal streams in upper catchments of the Ugalla River, Malagarasi drainage, central Tanzania. It belongs to the N. ugandensis species group based on male diagnostic characters comprising light blue scales with a broad, irregular reticulated pattern on the body, vivid red or orange oblique bars on the head and dorsum, yellow or blue anal fin, large vivid red spots on dorsal and anal fins, rounded head with a slightly concave to nearly straight dorsal profile, predorsal profile convex from nape to posterior extremity of dorsal-fin base, and variable cephalic squamation. Nothobranchius streltsovi has two sympatric colour morphs and is distinguished from all other members of the N. ugandensis group by the following combination of characters: scale margins orange; caudal fin orange, spotted proximally; pectoral fin spotted proximally; anal and pelvic fins with red dots, light blue proximally, yellow or creamy white distally; seven branchiostegal rays; 31-34 longitudinal, 14-16 transverse, and 15-16 circumpeduncular scales; supraorbital neuromast formula 2 + 3 + 4.
Genus: Nothobranchius Subgenus: Zonothobranchius. Group: ugandensis
Geographical Distribution Maps
Tanzania Type locality:Malagarasi River basin, Ugalla River drainage: temporary pool in Nkululu River (06°40'52" S, 33°41'00" E Extension: known only from type area
Status specie: Unanimously confirmed
Related: Nagy, B., B. R. Watters, P. D. W. van der Merwe, F. P. D. Cotterill & D. U. Bellstedt. 2020. Review of the Nothobranchius ugandensis species group from the inland plateau of eastern Africa with descriptions of six new species (Teleostei: Nothobranchiidae). Ichthyological Exploration of Freshwaters, 30 (1): 21–73. [phylogeny]
Valdesalici 2016
Nothobranchius streltsovi Nothobranchius streltsovi Nothobranchius streltsovi Nothobranchius streltsovi (C) Sergey Torgashev
(C) Sergey Torgashev