FISHES. MCCULLOCH. 175 



angles form small papillae which are hidden in the mouth. 

 Teeth pavement -like, each with a horizontal ridge in the 

 female, which is elevated into an obtuse spine in the male. 

 A fimbriated lip behind the upper jaw, the median fimbrise 

 being largest. A median, bilobed papilla behind the lower 

 jaw, with one or two smaller ones on each side. 



Tail depressed without lateral folds, its width between the 

 ventral fins equal to that of the mouth ; its length from the 

 middle of the vent is a little less than that from the same 

 point to the end of the snout. The spine is inserted at about 

 the middle of its length, and is depressed with serrated edges. 

 Dorsal fin small, but well developed, placed directly before 

 the spine. Caudal narrow, its wddth equal to about two- 

 thirds of the intemasal space ; it originates below the hinder 

 fourth of the spine on the upper surface, and extends forward 

 as a ridge below almost or quite to beneath the dorsal. 



Colour. — Uniform cinnamon brown above when fresh, 

 including the eyes and tail. The extreme edges of the disc 

 and caudal fin are white. Lower' surfaces white, with a broad 

 pale brown margin to the pectorals and ventrals. Larger 

 specimens are darker brown, with the intramarginal portions 

 of the disc and caudal fin blackish. 



The above description is based on two examples 157 and 

 225 m^m. wide, the smaller of which is from Queensland and 

 the other from Port Jackson. The figure is prepared from a 

 female specimen 244 mm. wide taken at Botany Bay by Mr. 

 J. H. Wright. 



A large specimen 322 mm. wide differs from the others 

 in lacking a dorsal fin, and in having the tail somewhat 

 shorter, its length to the middle of the vent being 1.1 in the 

 length from the same point to the end of the snout. Its 

 colour is coffee-brown above and white below, with the edges 

 of the disc broadly margined with brown. It is apparently 

 not distinct from U. testaceus, having all the other characters 

 of that species. 



Locs.- — This is the common Sting-ray of shallow water in 

 New South Wales. It is also recorded from Queensland, 

 Victoria and South Australia. The " Endeavour " collection 

 includes two small examples from five miles south-west of 

 Boomerang Hill, Fraser Island, Queensland ; 15 fathoms. I 

 have also examined three smaU specimens 146-184 mm. wide 

 from Port Hacking, New South Wales, which were collected 

 by Mr. A. Musgrave, of this Museum. 



