considerable and crowded. The anterior profile is deeply con- 
cave ; the angle of the pectorals is rather pointed ; there are no 
spines round the eyes, but a series of three or four is seen on 
each side of the back, and ends before the insertion of the ventrals ; 
the tail is armed with three series of strong tuberculous spines, 
and one or two are seen on the middle of the back behind the 
head. The teeth are rather large, like pavement, and numerous. 
The general colour is of a greyish purple, with the sides 
reddish ; all the body is covered with rounded white spots. This 
sort is very common in the market, and is esteemed for the table. 
It is always with doubt that I admit that a fish from the 
Antarctic Seas is specifically similar to an European one, more so 
as I have no specimens of the latter region for comparison ; but 
the descriptions and figures of Oxyrhynchus, that I have at my 
disposal, agree so well with the Australian fish that I should not 
be justified in separating them. I think, also, that Raja Nasuta 
of Muller and Ilenle, which is established on a figure drawn in 
New Zealand by Sqlander, will prove to belong to this species. 
The egg is large, of the usual form in Rays, of a silky green. 
In a large female I found one large egg on each side, and 
numerous small ones. 
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."' 
MYLIOBATIS. 
Genus formed by Cuvier, and containing nine or ten sorts, of 
which two are found in the South Australian Seas. 
MYLIOBATIS AQUILA. 
Eaja Aquila, Lin., Syst. Nat., vol. i., p. 396. 
Coloration of a dark green, almost uniform. 
