386 



SILUEIDiE. 



Pectoral spine similar to dorsal. Ventral reaching, or nearly reaching, 

 origin of anal. Caudal deeply notched, with long, pointed lobes. 

 Caudal peduncle 2 to 2| times as long as deep. Olive-brown above, 

 silvery on the sides, white beneath ; distal half of pectoral, ventral, and 

 anal fins brown or blackish. 



Total length 520 millim. 



Gambia, Niger, Cameroon, Fernando Po, Congo. 



Mr. C. L. Salmin(C). 

 Mr. L. Fraser (0.). 



1. 



2. 



Hot., type. 

 Ad. 



Fernando Po 

 Cameroon. 



3. 



Yg., one of the types of 



Niger. 



4. 



A. parkii. 



Ad. 



Gambia. 



J. S. Budgett, Esq. (P.) 



2. ARIUS GIGAS, sp. n. 



Arius lat/scidatus, part., Glinth. Cat. Fish. v. p. 151 (18C4) ; Bouleng. Poiss. 

 Bass. Congo, p. 300 (1901). 



Depth of body 4 times in total length, length of head 3f times. 

 Head slightly longer than broad, the posterior part of its upper surface 



Fig. 298. 



Arius (j 'if/as. 



Half- 



grown, i 



* The name refers to the large skeletons which were regarded by GKinther as the adults 

 of his A. latiscutalus, which differs in the palatal dentition ; but the description of the 

 external characters, as here given, is necessarily taken from the much smaller specimen iu 

 spirit (total length 275 millim.). 



