28 CTTONDBOPTEKYGTI. SF.LACITTODET. 



about the same size as the anal ; length of base of anal equal to its 

 distance from the ventral. Caudal fin 3| in the total length. 

 Colour brown superiorly, becoming dull white beneath. 



Hob. Seas of Sind, where they abound attaining at least twenty 

 feet; one on board a native craft measured that length. A spe- 

 cimen, 10| feet long, from South Australia, is in the British 

 Museum ; also several jaws. 



3. Genus ALOPIAS, Kafinesque. 



Mouth crescentic. No nictitating membrane to the eye. Spiracles 

 minute, close behind the orbit. Teeth of rather small size, flattened 

 and triangular, having smooth edges. Gill-openings of medium 

 size. The first dorsal fin spineless, inserted above the interspace 

 between the pectoral and ventral fins ; the second dorsal above the 

 interspace between the ventral and anal, the latter being very 

 small ; caudal very long, with a pit at its commencement. No keel 

 on the side of the tail. 



29. (1.) Alopias vulpes. (Fig. 9.) 

 J 



synon.). 



Squalus vulpes, Gmel. Syst. Nat. p. 1406. 



Alopias vulpes, Day, Fi&h. India, Supplement, 1888, p. 810 (see 



Fig. 9. Alopias vulpes. . 



Body fusiform, gradually decreasing in size to the caudal fin, 

 the great length of which is about half the total. Eyes rather 

 large. Nostrils beneath and nearer the anterior border of the 

 mouth than the end of the snout. Gill-openings of medium size, 

 the two last being over the pectoral fin. Teeth about g, the 

 third or fourth tooth on either side of the centre of the upper jaw 

 being smaller than the others. 



Hob. Both shores of the Atlantic Ocean, and the Mediterranean. 

 One example from the Cape is in the Paris Museum. Mr. Haly 

 (' Taprobanian,' 1886, i. p. 167) recorded one 8 feet 8 inches long 

 from Ceylon : it was procured in the Colombo market in Feb. 1884, 

 where it was quite unknown to the fishermen. It has also been 

 obtained from San Francisco Bav, California, and New Zealand. 



