BY W. MACLEAY, F.L.S. 379 



Urolophus epliippiutus, Richards., Voy. Ereb. and Terr., 35, pi. 24. 



Disk rather broader than long, the anterior margins being 

 straight and meeting at an obtuse angle ; snout not projecting. 

 Skin entirely smooth. Tail shorter than the disk. Yellowish, 

 uniform or with one or three blackish longitudinal bands, crossed 

 by others of the same colour. 



Port Arthur. 



1121. Urolophus testaceus, Mull. & Henle. 

 Mull. & Henle, p. 174, pi. 56.— Gunth., Cat. Eishes, VIII., p. 486. 



Syn. U. Mulleri, Herilei, and australis, of Steiudachner. 



Disk rather broader than long, the anterior margins meeting 

 at a very obtuse angle; snout not projecting. Skin entirely 

 smooth. Tail shorter than the disk in adults, rather longer in 

 young specimens. Nasal valve fringed ; six short papilla) at 

 the bottom of the mouth. Coloration uniform. 



Cape Upstart, Port Jackson. 



Family VI. MYLIOBATIDiE. 



The disk is very broad in consequence of the great development 

 of the pectoral fins, which, however, leave the sides of the head 

 free, and re-appear at the extremity of the snout as a pair of 

 detached (cephalic) fins. 



Genus Myliobatis, Cuv. 



Head free from the disk ; snout with a soft appendage in front, 

 supported inferiorly by fin-rays. Nasal valves coalescent into a 

 quadrangular flap. Teeth hexangular, large, flat, tesselated ; 

 those in the middle much broader than long ; several narrower 

 series on each side. Tail very long and thin, with a dorsal fin 

 near its root ; generally a serrated spine behind the fin. 



Temperate and Tropical Seas. 



