224 
HAJID^. 
“ Disk broad, rhombic, generally with asperities 
or spines ; tail with a longitudinal fold on each side. 
The pectorals extend to tlie snout. No electric 
organ. No serrated caudal spine.” 
The only two sorts I have observed belong to the following 
genus : — ■ 
EAJA. 
RAJA liEMPEIEBI. 
Eaja Lemprieri, Richard., Rrebus and Terror, p. 34, pi. 23. 
{Thorn Rack?) 
Snout short. The fish is of a fleshy colour, rather green on 
the back and the upper part of the tail, and of a reddish purple 
on the sides of the pectorals ; the spines seem to be subject to 
considerable variation ; on young specimens there is, on each 
side of the pector.ils, two series of slender, arched, but very acute 
spines ; in the older ones, there is only one series of these ; but 
on the contrary, those of the tail of the young specimens are 
only disposed on one line on the middle of its upper part, when 
in the larger specimens they form three series on the upper 
part of this organ. In dried specimens, the lateral part of 
the pectorals, and also the portion situated on the sides of the 
snout, appear of a light yellow colour, as they are represented on 
llichardson’s plate. 
Common. 
RAJA OSTRHYITCHTJS. 
Eaja Oxyrhynchus, Lyn. Syst. Nat., vol. i., p. 395. 
{Oonmion Ray.) 
The snout long ; body entirely covered with asperities, which 
are more considerable on the snout, where they form small 
triangular points ; on the lower surface of this part of the edges 
of the ventrals, up to the height of the eyes, these points are 
