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Show 1903.] FISHES FROM SOUTHERN CAMEROON. 27 dark brown; fins spotted with dark brown, caudal yellowish at the base. Total length 100 millim. Several specimens from the Mvile River. The vertebral column consists of 38 vertebrae, 13 prsecaudals and 25 caudals. The first 7 are completely united, and the transverse processes of the 4th, wThich form the spring-mechanism in Synodontis, have a very extraordinary form. This process bears a spheroidal expansion in front, whilst behind, where it presses against the bladder, it is slightly excavated or cup-shaped. It may be described as similar to its liomologue in Synodontis, but with a large, bell-shaped, bony knob attached to its anterior surface. The air-bladder is large, as in Synodontis. The male genital gland is very peculiar, being lacerated into numerous digitiform lobes. C y PRINODONTID^E. 26. H aplochilus sexfasciatus Gill. Epiplatys sexfasciatus Gill, Proc. Acad. Philad. 1862, p. 136 (Gaboon R.). Pcecilia sexfasciata Peters, Mon. Berl. Ac. 1864, p. 396 (Liberia). Haplochilus infrafasciatus, part., Giinth. Cat. Fish. vi. (1866), pp. 313 & 357 (Old Calabar). Haplochilus sexfasciatus Giinth. 1. c. Lycocyprinus sexfasciatus Peters, Mon. Berl. Ac. 1868, p. 146 (Gaboon). Epiplatys infrafasciatus Cope, Proc. Amer. Philos. Soc. xi. 1871, p. 457. Haplochilus infrafasciatus Steind. Notes Leyd. Mus. xvi. 1894, p. 76 (Liberia); Lonnberg, (Efv. Vet.-Ak. Forh. Stockh. 1895, p. 188 (Cameroon). 27. H aplochilus elegans Blgr. O p h io c e p h a l id ,e . 28. Ophiocephalus obscurus Gthr. A n a b a n t id ^e . 29. A nabas maculatus Thomin. 30. A nabas pleurostigma, sp. n. (Plate Y . fig. 1.) Closely related to A. kingsleyce Gthr., but snout longer, as long as the eye in the adult, at least two-thirds the in te r o r b ita l width. Dorsal X I Y -X Y I 10-11 ; anal V I I I - IX 10-11. Scales 27-29 2f ; lateral line 14-17/10-12. A large round blackish spot on the middle of the side, above the extremity of the pectoral fin ; no dark spot at the base of the caudal fin. Total length 170 millim. Several specimens from the Kribi River. |
