194 



ADDENDA, VOL. I. 



15. DISTICHODUS ROSTRATUS, Gtbr. 

 Pollegr. Poiss. Bass. Tchad, p. 81, fig. (1914). 

 Add :— 



27. Hgr. Lagoon at Asaba, Lower Niger. 



28-33. Yg. Aboina R., Cross R. 



34-35. Yg. Abinsi, Benue R., N. Nigeria. 



Major G. B. Brace (P.). 

 Capt. B, D. GarJ'ner (P.). 

 Dr. J. M. Dalziel (P.). 



17. DISTICHODUS LUSOSSO, Schiltb. 

 Steind. Denkschr. Ak. Wien, Ixxxix. 1913, p. 21. 



17«. DISTICHODUS ANSORGII. 

 Bouleng. Ann. & Mag. N. H. (8) vii. 1911, p. 373. 



Depth of body 3f to 4J times in total length, length of head 4^ to 

 5 times. Head longer than deep ; snout rounded, not compressed, 

 projecting very slightly beyond mouth, shorter than eye, which is 2J to 

 2| times in length of head and equals interorbital width ; maxillary 

 extending to below nostrils ; teeth in a single series, 20 or 22 in each 

 jaw. Dorsal 17-19 (4 unbranched), equally distant from occiput and 



Fig. 123. 



Distichodus ansorgii. 

 Type. 



from caudal, its base equal to its distance from adipose fin, which is not 

 scaly. Anal 11-12 (3-4 unbranched), its base much shorter than that 

 of dorsal. Pectoral about | length of head. Caudal deeply forked, 

 lobes pointed. Caudal peduncle as long as deep or a little longer than 



f 7 1 8 1 



deep. Scales 55-62 ^gf, 5J-6 between lateral line and root of ventral. 

 Yellow, speckled with brown above the lateral line, silvery white 



