DesDescriptioncription
Valdesalici, S. 2015. Nothobranchius torgashevi
(Cyprinodontiformes: Nothobranchiidae), a new species of annual
killifish with two male colour morphs from the Lake Eyasi basin,
central Tanzania. Killi-Data Series, 2015: 17–30.
Abstract: Nothobranchius torgashevi, new species, is described
from a single locality, a temporary ditch associated with an
unnamed affluent within the Mhwala River drainage, a tributary of
the Wembere River in the Lake Eyasi basin. It is assigned to the N.
ugandensis species group, members of which are defined by:
colour pattern in males consisting of light blue scales with a broad,
irregular, reticulated pattern on the body, vivid orange or red
oblique bars on the head and dorsum, a yellow or blue anal fin,
and large vivid red spots on the dorsal and anal fins; head rounded
slightly concave to nearly straight dorsally; predorsal profile
convex from nape to posterior extremity of dorsal fin base;
cephalic squamation variable. N. torgashevi can be distinguished
from other species in this assemblage by a combination of
characters, including colour pattern and number of scales in the
transverse and circumpeduncular series. Uniquely within the
genus Nothobranchius, sympatric male colour morphs differ only
by possession of white or yellow pigmentation on the distal
portion of the anal fin.
Clasification
Genus: Nothobranchius
Subgenus: Zonothobranchius.
Group: ugandensis
Geographical Distribution
Maps
Tanzania, (05°53.09’ S, 34°17.12’ E); Andrey Nikiforov & Sergey
Torgashev,
Type locality: unnamed tributary Mhwala River, Wembere River
drainage, Lake Eyasi basin, altitude 1378 m, (western) Tanzania
Locations/codes
Itigi (TNT 14-05)
Notes
Status specie:
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]