498 



SILUKID^E. 



reaching ventral ; latter just reaching origin of anal. Caudal peduncle 

 ■f total length. Yellowish brown above, whitish beneath ; ill-defined 

 dark bars across the back ; a dark streak from the end of the snout to 

 the eye ; two dark transverse bars on the dorsal, anal, pectoral, and 

 ventral fins. 



Total length 70 millim. 



Benguella. 



Fig. 371. 



Doumea angolensis. 

 Type. 



1. Type. 



Interior of Benguella, 4000-5000 ft. Dr. F. C. Wellman (P.). 



35. PHRACTURA. 



Feltura (non M.-Edw.), Perugia, Ann. Mus. Genova, (2) x. 1802, p. 972. 

 Phractura, Bouleng. Ann. & Mag. N. H. (7) vi. 1900, p. 527, and Poiss. Bass. 

 Congo, p. 333 (1901). 



Body elongate, depressed, with extremely slender caudal peduncle ; 

 a series of imbricate scutes * along each side of the back and belly from 

 the dorsal and ventral fins to the caudal peduncle, which may be entirely 

 surrounded by these scutes. Two short dorsal fins, the anterior entirely 

 in advance of the ventrals and formed of one simple, flexible, and 6 or 7 

 branched rays, the second opposed to the anal and adipose, with fine 

 soft rays ; pectoral and ventral fins large, horizontally expanded, without 

 spine, but with thickened, simple outer ray as in Doumea ; 6 ventral 

 rays. No occipito-nuchal shield. Mouth small, inferior, surrounded 

 with large papillose lips ; no mandibular teeth ; small conical prae- 

 maxillary teeth ; a maxillary and two mandibular barbels on each side; 

 nostrils rather remote from each other, both with a valve ; eye small, 



Expansions of processes of tire vertebra. 



