DESCRIPTION OF A NEW SHARK OQILBY. 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 tlie length of the base of tlie 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 beneath 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 npper lobe is 

 straight, the angle and the posterior margni rounded ; the lower 

 lobe is triangular, with the anterior margin slightly concave, and 

 equal in length to the posterior margin, which is sinuous, with 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 fins, and their contiguity, the one 

 to the other, separates this species at a glance from C. salvtani ; 

 the scales also difiJer 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. 



