FISHES FlUJM THE COAST OF NATAL. 



Descriptions of new or little-known Fishes from 

 the Coast of Natal.^ 



By 

 C. Tate Ro^:aii, B.A. 



With Plates I— V. 



Pliotrema gen. nov. 



Differs from Pristiophorus Miill. ii. Henle in having six 

 •■ill-clefts on each side. 



Pliotrenia warreni sp. n. (PI. I). 



Body elongate^ about as broad as deep, the flat lower sur- 

 face margined on each side by a ridge which is scarcely dis- 

 tinct on the trunk, but well -developed on the tail. Denticles 

 small, pointed, with a median keel and sometimes with a pair 

 of lateral keels, close set on the lower parts of the body and 

 the anterior margins of the fins ; distal parts of the fins naked. 

 Length of snout in front of eye 4|- times its breadth at the 

 base. Teeth of the rostrum compressed, pointed, unequal in 

 length, the larger ones with denticulated posterior edge. 

 Barbel, when laid back, reaching the nostril, which is slightly 

 nearer to the angle of the mouth than to the root of the barbel. 

 Upper jaw with 40 to 44 series of teeth, lower jaw with 31 to 

 84. First dorsal scarcely larger than the second, originating 



' The fishes here described form part of a collection sent to the 

 British Musenm by Dr. E. Wan-en. wlio has retained a duplicate set 

 for the Natal Government Museum. Pietermaritzlmrg. The specimens 

 were oljtained by the Museum Collector, Mr. F. Toppin. 



VOL. 1, PART 1. 1 



