From the Coast of Ireland. 407 
pectoral one large oval spot of a rich chocolate-brown, surrounded 
by and containing variously-shaped cream-coloured spots. 
Dublin bay. 
Raia microcellata. As only three specimens have been 
recorded of this very rare species, two having occurred to 
Montagu and one to Mr. Couch, I need scarcely apologize 
for giving a description of a fine specimen now before me, 
particularly as it offers one or two trifling variations from 
those already known. 
Dimen. Total length 13 inches; length of tail 7 inches; greatest 
breadth 9 inches. 
Descrirp. (Form.) Rhomboidal, the transverse diameter one- 
third greater than from the snout to the anus; snout short, trian- 
gular, projecting half an inch; the anterior margins of the pectorals 
waved convex; mouth one inch wide; nostrils large, at an equal 
distance from the corner of the mouth and from the margins of the 
pectoral fin: eyes small; spiracles moderate; skin above covered 
with very minute granular spines directed backwards, largest on 
the snout and anterior margin of the pectorals ; beneath entirely 
smooth, except at the very tip of the snout : mucous orifices remark- 
ably large; before each eye one large broad spine; at the exterior 
of its base another smaller; behind each eye two or three spines; 
a row of twenty-five spines commences a little behind the eyes, and 
continues to the base of the first dorsal; these spines are neither 
large or much hooked; there is a smaller one between the two dor- 
sals: tail considerably longer than the body, narrow, depressed ; 
the membranous fin-like border to the tail, noticed by Mr. Couch, 
particularly striking; the two dorsals are more remote than usual, 
and the rudiment of caudal is larger; the annexed figure shows 
these fins of the natural size. (Colour.) Upper surface dull brown, 
with obscure circular whitish spots about the size of a pin; no lines; 
the sides of the tail elegantly marked with alternate brown and 
white spots; beneath yellowish white; posterior margin of the 
pectorals slightly darker. 
Dublin bay. 
Torpedo emarginata (M’Coy). 
Sp. Cuar. Head truncated anteriorly, separated from the 
_ pectoral fins by a deep notch on each side; spiracles without 
appendages or processes; anterior dorsal fin entirely behind 
the ventrals. 
Dimen. Total length 2 feet 8 inches; greatest breadth 1 foot 
2 inches; thickness 5 inches. . 
Descrir. (Form.) Head distinct, truncated or terminated by a 
right line anteriorly, emarginate at the sides; breadth in front 7 
inches, slightly rounded at the corners: mouth moderate, teeth mi- 
nute; eyes small, 14 inch apart; iris brownish yellow; behind each 
a large round or somewhat oval spiracle, without any tooth-like 
process; brancheal openings five on each side, crescent-shaped ; 
