DesDescriptioncription
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.
Clasification
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
Locations/codes
Notes
Status specie: Unanimously confirmed
Bibliography
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]