82 fishes of new zealand. 



RHINOBATIDt*]. 



Tail strong and long, with two well developed dorsal tins ; a caudal 

 and a longitudinal fold on each side ; disc not excessively dilated, the 

 rayed poi-tion of the pectoi-al fins not being continued to the snout ; no 

 electrical organ. 



E.HINOBATUS. 



Bodj/ gradually passing into the tail ; cranial cartilage produced into 

 a long rostral process, the space between the process and the pectoral 

 fin being filled by a membrane ; spiracles wide, behind the eye ; nostrils 

 oblique, wide ; anterior nasal valves not confluent ; teeth obtuse, with 

 an indistinct transverse ridge \ dorsal fins without spine, both at a gi-eat 

 distance behind the ventral fins ; caudal withoxit lower lobe. 



Ti-opical and subtropical seas. 



132. RHINOBATUS BANKSII. Mull, and Henle. 



R. hanJcsii, Giinth., VIII., 446. 



The anterior nasal valve is continued towards the median line by a 

 short fold, which, however, is far from reaching that of the other side ; 

 the distance between the inner angles of the nostrils is more than the 

 length of a nostril ; snout produced ; mouth arched ; the median teeth 

 of the lower jaw larger and more prominent than the lateral ; a series 

 of small tubercles along the middle of the back, and two short rows on 

 each shoulder (Giinth.) 



New Zealand (Rich.), Australia (Giinth.) 



I have seen no specimens. 



Trygonorhina. 



Like Ehinohatus, but the anterior nasal valves are broad, and 

 confluent into a broad quadrangular flap, with a free margin overhanging 

 the mouth. 



Australia. 



133. TRYGONORHINA PASCIATA. Mull, and Henle. 



T. fasciata, Gunth., VIII. 448. 



Snout rather short, the distance between its extremity and the mouth 

 being not much more than the distance between the outer angles of the 



