Monday, January 16, 2017

[Ichthyology • 2014] Nothobranchius chochamandai • A New Species of Annual Killifish (Cyprinodontiformes: Nothobranchiidae) from the Luapula drainage, Democratic Republic of Congo

Nothobranchius chochamandai Nagy, 2014

Nothobranchius chochamandai, new species, is described from ephemeral swamps of the Kinikabwimba River, tributary of Lufutishi River in the lower Luapula drainage in Katanga province of Democratic Republic of Congo. It is identified as belonging to the N. brieni species-group of which it shows the diagnostic characters in males: proximal portion of caudal and anal fins spotted; dorsal fin lacking dark distal margin; head without dark spots and scales without a black posterior margin. Nothobranchius chochamandai is distinguished from all other species of this species-group by the unique combination of the following characters in males: caudal and anal fins with light blue distal margins and without a submarginal band; dorsal fin without a light blue distal margin; postorbital length 56-60 % HL; snout length 16-19 % HL; head width 65-69 % of its depth, and caudal peduncle length 135-142 % of its depth.

Nothobranchius chochamandai, male (photograph by B. Nagy) 

Béla Nagy. 2014. Nothobranchius chochamandai, A New Species of Annual Killifish from the Luapula drainage, Democratic Republic of Congo (Cyprinodontiformes: Nothobranchiidae). 
 Ichthyol. Explor. Freshwaters. 25(2); 167-183. 

No comments:

Post a Comment