Costa, W.J.E.M. 2019. Two new species of seasonal killifishes of the Nothobranchius melanospilus species Complex from the East Africa Biodiversity Hotspot (Cyprinodontiformes: Aplocheilidae). Vertebrate Zoology, 69 (1): 76, fig. 3. Abstract During a revision of material identified in museum collections as Nothobranchius melanospilus, two new species were recognised: N. kwalensis, new species, from the Ramisi River basin, southeastem Kenya, and N. prognathus, new species, from the upper Wami River basin, eastem Tanzania. Both new species are distinguished from N. melanospilus by Ilse relative position of the dorsal-fin origin in fe­males, presence of dark dots an the whole flank in females, the two sections of the anterior supraorbital series of neuromasts well-separated, and presence of fewer mandibular neuromasts. Nothobranchius prognathus is distinguished from other species of the N. melanospilus complex by the shape of the snout and eye, frontal squamation, and basal portion of the pelvic fins medially united in males. Additional moephometric characters were found informative to diagnose species of the N. melanospilus complex.
Genus: Nothobranchius Subgenus: Adiniops. Group: melanospilus
Geographical Distribution Maps N. melanospilus Group
Tanzania Type locality:Morogoro district: swamp pool about 7 km from Kimamba in the to Kilosa, 06°46’30” S, 37°12’30” E. Extension:known only from type area, in Tendigo swamp area, Mkata river floodplains, upper Wami river basin, eastern Tanzania
Kiluvya Hills TAN 19-13 Kitete TAN 19-11, Mwumi TAN 19-12
Status specie: Not unanimously confirmed.
Related: Wildekamp, R.H. 2019. Back to the Theme Nothobranchius guentheri and Nothobranchius melanospilus, with additional Notes to the N. melanospilus Complex sensu Costa 2019. Journal of the American Killifish Association (J. Amer. Killifish Assoc., JAKA), 52 (2) (August): 43-52, 10 figs. [prognathus N.: Sys/Pat/Dis/Coll/= melanospilus] Bartakova, V., B. Nagy, M. Polacik, R. Blazek, H. Lamtane & M. Reichard. 2020. Genetic Diversity of a widespread annual killifish from coastal Tanzania. BMC Evolutionary Biology, 20 (1): 13 pp. [ 2] [prognathus N.: Sys/Gen/Dis/Coll/= melanospilus (?)]
Costa, 2019
Nothobranchius prognathus Nothobranchius prognathus Nothobranchius prognathus Nothobranchius prognathus Image taken from the Costa description