New ‘Barbus’ (Teleostei: Cyprinidae) from Serengeti National Park, Tanzania
‘Barbus’ serengetiensis is described from rivers in Serengeti National Park, Tanzania, East Africa. The rivers are part of the Grumeti River drainage, itself part of the Lake Victoria basin. ‘Barbus’ serengetiensis is a small species diagnosed by the following combination of characters: radiately striate scales having fewer than 15 striae; dorsal fin with seven branched rays; dorsal fin origin posterior to pelvic fin origin; a single pair of short barbels; a short snout with a terminal, anterodorsally directed mouth; incomplete lateral line; 32–36 scales in the lateral line series; 16 scales around the caudal peduncle; no pelvic axillary scale; and 10–12 olfactory lamellae. It is unusual among African ‘Barbus’ in having high scale counts combined with a last unbranched dorsal ray that is segmented and flexible.Abstract
‘Barbus’ serengetiensis, n. sp., holotype, BMNH 1997.4.11.22. 37.0 mm SL. Adult female
Anterior cranial skeleton of Barbus serengetiensis. BMNH 1997.4.11.36, 33.8 mm SL. Left lateral view below; dorsal view of rostral region above (anterior to left)
Left pharyngeal jaw of ‘Barbus’ serengetiensis. Paratype, JFBM 31408, 35.6 SL. Adult female. Posterior view
Pectoral girdles of ‘Barbus’ serengetiensis and several other small African barbs, left lateral view above, ventral view below (anterior to left). CLE = cleithrum; COR = coracoid; SCA = scapular; FOR = foramen. (A) ‘Barbus’ serengetiensis, BMNH 1997.4.11.36, 33.8 mm SL. (B) ‘Barbus’ paludinosus, JFBM 31411, 32.4 mm SL. (C) ‘Barbus’ haasianus, RUSI 022716, 19.4 mm SL. (D) ‘Barbus’ toppini, RUSI 024304, 34.7 mm SL. (E) ‘Barbus’ puellus (= ‘B.’ brevidorsalis), AMNH 215700, 30.9 mm SL. (F) ‘Barbus’ anoplus, RUSI 026123, 53.9 mm SL
Serengeti National Park, showing all collecting sites (open circles) and sites where ‘Barbus’ serengetiensis was collected (solid diamonds). Inset map shows location of Serengeti National Park to the east of Lake Victoria in northern Tanzania