DESCRIPTION OF A NEW SHARK — OGILBY. 
63 
straight, with a slight inclination forwards, and protrudes a short 
distance beyond the membrane ; its base is exactly midway 
between the tip of the snout and the origin of the caudal, 
while the distance between the bases of the two dorsal spines is 
but little more than the length of the base of the first dorsal in 
front of its spine, and five-sevenths of the length of the fish in 
front of it ; the intradorsal ridge is very strongly developed ; the 
second dorsal has a general resemblance in shape to the first, but 
is not so large ; the upper margin is more regularly even, and the 
extremity, which is much more pointed, hangs vertically above 
the base of the caudal, instead of falling within the vertical from 
its own base, as with the anterior fin ; the length of its base is 
equal to that of the intradorsal space, and to the height of the 
fin beneatli its tip, and is four-sevenths of the outer margin ; the 
spine is situated in the latter portion of the anterior half of the 
fin, and is gently curved backwards throughout its entire length ; 
in height it is but little less than that of the first dorsal ; the 
pectoral fin is well developed and pointed, its length equal to the 
space which divides its anterior basal margin from the nostril ; 
the distance between its base and that of the ventral is two-fifths 
longer than that between the dorsal spines, and is traversed by a 
strongly developed lateral ridge; the ventral fin commences beneath 
the spine of the second dorsal, and the distance between its ter- 
mination and the origin of the lower caudal lobe is equal to 
that between the second dorsal and the, caudal fin ; the caudal 
lobes are well developed ; the outer margin of the upper lobe is 
straight, the angle and the posterior margin rounded ; the lower 
lobe is triangular, with the anterior margin slightly concave, and 
equal in length to the posterior margin, which is sinuous, witli the 
angle rounded. The skin is covered with small rough Scales, each 
of which bears a well developed spinate projection, which consists 
of a central spine from which radiate four compressed wings, each 
one terminating at its outer angle in a somewhat shorter spine 
than the central one. 
Color . — Uniform sandy brown. 
The Shark described above was sent to the Australian Museum, 
by the authorities of the Tasmanian Museum, Hobart, for identifica- 
tion and preservation, and was placed in my hands for description 
previous to being returned. The specimen was picked up on the 
shore of Bruny Island, Tasmania, in a dried state, but on being 
relaxed was found to be in a fair state of preservation. The 
enormous height of the dorsal (ins, and their contiguity, the one 
to the other, separates this species at a glance from C. salviani ; 
the scales also differ considerably. 
Type . — In the Tasmanian Museum. 
The specific name has been given to it at the request of Mr. 
Alex. Morton, Curator of the Tasmanian Museum. 
