Page:Travels in West Africa, Congo Français, Corisco and Cameroons (IA travelsinwestafr00kingrich).pdf/755



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Eleotris (Culius) senegalensis, Steind, SB. Wien. Akad, 1869, lx. p. 949, Taf. ii. figs. 1, 2.

Ascends the Ogowé River, specimens having been obtained at Kondo-Kondo.

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Mastacembelus cryptacanthus, Günth. P. Z. S. 1867, p. 102; Ann. & Mag. Nat. Hist. 1867, xx. p. 110.

Mastacenbelus Marchei, Sauv. Bull. Soc. Philom. 1876, p. 94, and N. Arch. Mus. iii. 1880, p. 36, pl. i. fig. 1; Steind. Not. Leyd, Mus. XVi. p. 31; Denkschr. Wien. Ak. 1879, xli., "Ucber cinige neue. Fisch," p. 16.

Lambarene.

Warri (Niger delta).

Lambarene and Kondo-Kondo.

Figured in Petherick's "Travels," 1869, ii pl. ii, fig. B.

From an examination of a much greater number of specimens than were at my disposal some years ago I have come to the conclusion that the variation in the characters of the species is of a limited extent, and that a greater number of species exist than I was formerly inclined to admit. Neither is the distinction of this genus from Spirobranchus so sharp as was supposed, the armature of the opercles not being equally developed in all species, and very young Ctenopomas apparently lacking it. At present I divide the specimens before me under the following specific names:—