Tyttobrycon xeruini Géry, 1973

Stud. neotr. Fauna, 8: 126-129, fig. 27-30, tabl. 10.

Holotype:
MHNG 2229.10 (m, 17.7 mm LS). Brésil: middle rio Negro basin, rio Novo, tributary of the rio Xeruini (which runs parallely with the lower part or the rio Branco, and is almost confounded with it), (St 67); 03.V.1964; lg Martin R. Brittan.

Paratypes:
MHNG 2172.92 (1). Brésil: middle rio Negro basin, rio Itu, praya Mofulu [...] (St. 61); 26.IV.1964; lg Martin R. Brittan.
MHNG 2172.94 (3). Same data.[ que l' holotype = Brésil: middle rio Negro basin, rio Novo, tributary of the rio Xeruini (which runs parallely with the lower part or the rio Branco, and is almost confounded with it), (St 67); 03.V.1964; lg Martin R. Brittan]

Remarques: CJG 695; MHNG 2172.94: 3 des 5 paratypes du lot St. 67, 1 ZMA (VI. 1975), 1 ANSP (2.X. 1978).