GNATHONEMUS. 97 



Dorsal 20-25, originating above 4th to 6th ray of anal, its length 2 to 

 2^ times in its distance from head. Anal 25-33, equally distant from 

 base of ventral and base of caudal, or nearer latter. Pectoral as long as 

 or slightly shorter than head, twice as long as ventral, extending beyond 

 base of latter. Caudal densely scaled in its anterior third, with pointed 

 lobes. Caudal peduncle 2|- to 3 times as long as deep, as long as or 



Fig. 77. 





*}^i 



'4 



Onatlionemus moorii. 

 Type of M. lephtrus, after Giinther (P. Z. S. 1871). 



a little shorter than head. 43-49 scales in lateral line, ^£r^ in trans- 

 verse series on body, 1= in transverse series between dorsal and anal, 8 

 round caudal peduncle. Brownish, with a dark brown vertical band 

 from anterior rays of dorsal to anterior rays of anal, sometimes followed 

 by a second. 



Total length 200 millim. 



Cameroon, Gaboon, Congo. — Type, from Ogowe (in Liverpool 

 Museum), examined. 

 1-2. Ad. Kribi R., S. Cameroon. G. L. Bates, Esq. (0.). 



3-9. Ad., hgr., & yg. JaR. atBitye, „ „ 



10-11. Yg. (Types Gaboon, 



of AI. lepturus.) 



12. Hgr. 



13. Ad. Eloby, Gaboon. 



14-16. Ad. Talagouga, Ogowe. Miss Kingsley (C). 



17-18. Yo-. Masoma R., Ogowe. Dr. W. J. Ansorge (C). 



19-20. Hot. tSctte Oama, Gaboon. 



21-22. Ad. Boma, Lower Congo. M. P. Delliez (C). 



2. GNATHONEMUS LAMBOURL 

 Pellogr. Bull. Miis. Paris, 1904, p. 439. 



Depth of body o\ to 4 times in total length, length of head 4 to 4f 

 times. Head a little longer than deep, with feebly curved upper profile ; 



VOL. I. ^ 



