19C 



ADDENDA, VOL. I. 



width. Dorsal III 9-10, originating a little in front of base of ventral, 

 situated at equal distance from centre of eye and from root of caudal, 

 longest ray nearly as long as or a little shorter than head. Anal 111 

 7-8. Pectoral § to f length of head, not reaching root of ventral. 

 Caudal forked, with pointed lobes. Caudal peduncle 1^ times as long 

 as deep. Scales 40-45 



51 



Qjf, 4 to 4-| between lateral line and ventral. 



Fig. 124. 



/■ : 



Nannocliarax ansorgii. 

 Type. X 11 



Back straw-colour, with numerous fine dark longitudinal lines ; a lateral 

 series of large black spots on the lateral line, usually confluent into a 

 broad band terminating on the caudal fin ; bases of dorsal, ventral, and 

 caudal fins pale orange. 



Total length 43 millim. 



Portuguese Guinea, Sierra Leone. 



1-5. Types. Geba R. at Bafata. 



6-10. Types. Culufi R. 



11-13. Ad. Pujehun, Sierra Leone. 



Distinguished from JV. taenia by the more posterior position of the 

 dorsal fin and the lower number of scales in the lateral line. 



Dr. W. J. Ansorge (C). 

 N. W. Thomas, Esq. (P.). 



9«. NANNOCHARAX OGOENSIS. 

 Pellegr. Bull. Soc. Zool. France, xxxvi. 1911, p. 180. 



Depth of body equal to length of head, 3J times in total length. 

 Head much deeper than broad ; snout a little shorter thau eye, which is 

 a little less than 3 times in length of head and a little exceeds inter- 

 orbital width. Dorsal III 14, originating a little in front of base of 

 ventral, longest rays about f length of head. Anal III 7. Pectoral 

 reaching root of ventral. Caudal forked, with pointed lobes. Caudal 



5- 



peduncle as long as deep. Scales 36 ^f, 4J between lateral line and 



