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 vertebre, 13 pracaudals 
and 25 caudals. ‘The first 7 are completely united, and the 
transverse processes of the 4th, which 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 homologue 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, 
CYPRINODONTID&, 
26. HAPLOCHILUS SEXFASCIATUS Gill. 
Epiplatys seafasciatus Gill, Proc. Acad. Philad. 1862, p. 136 
(Gaboon R.). 
Pacilia 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. ¢. 
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, Gifv. Vet.-Ak. Foérh. Stockh. 
1895, p. 188 (Cameroon). 
27, HAPLOcHILUS ELEGANS Bley, 
OPHIOCEPHALID, 
28. OPHIOCEPHALUS oBscURUS Gthr. 
ANABANTIDA. 
29, ANABAS MACULATUS Thomin. 
30. ANABAS PLEUROSTIGMA, sp. n. (Plate V. fig. 1.) 
Closely related to A. kingsleye Gthr., but snout longer, as long 
‘as the eye in the adult, at least two-thirds the interorbital 
width. Dorsal XIV—X VI 10-11; anal VITI-IX 10-11. Scales 
27-29 =; 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. 
