38S 



SI LURID JE. 



S or 9 on lower part of anterior arch. Dorsal I 7, spine § to f length 

 of head, with granular tubercles anteriorly and small serrse posteriorly. 

 Adipose dorsal small, its base about \ or -| that of rayed dorsal, about 

 twice as distant from latter as from caudal. Anal 17-20 (12-14 rays 

 branched). Pectoral spine similar to dorsal. Ventral reaching, or 

 nearly reaching, origin of anal. Caudal deeply notched, with long, 

 pointed lobes. Caudal peduncle 2 to 1\ times as long as deep. 



Pig. 299. 



Arms heudejoti. 

 Lagos, i. 



Brownish above, silvery on the sides, white beneath ; distal half of 

 pectoral, ventral, and anal fins brown. 



Total length -500 millim. 



Upper Senegal, Niger, Lagos, Cameroon. — Types, in Paris Museum, 

 examined. 



1. Hgr., one of the types Niger. Mr. L. Fraser (C). 



of A. parJcii. 



2. Hot. ., „ Lagos. J. Wood, Esq. (C. ). 



3. Hgr. Cameroon. Dr. J. A. Smith (P.). 



4. ARIUS MADAGASCARIENSIS. 

 Vaill. Bull. Soc. Philom. (8) vi. 1894, p. 77. 



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

 Snout rounded ; eye about 5 times in length of head and 2|- times in 

 interorbital width ; palate with two irregularly oval groups of villiform 



