DESCRIPTION OF A SQUALUS. 351 



Note. In confirmation of the statement relative to 

 the indentation or notch on the tail, I here add de- 

 scriptions of two species which seem to be new. 



Squalus *Spallanzani. — Peron and Lesueur. 



Spiracles none ; a black spot at the extremity of 

 the pectorals, another at the summit of the second 

 dorsal and a third at the end of the inferior lobe of 

 the tail; caudal fin undulated above; pectorals fal- 

 ciform, very narrow, situate under the two last 

 branchial openings ; head very much depressed ; a 

 lunulated emargiuation above and another beneath 

 the tail. 



Inhabits terre de Witt, New Holland. 



Squalus *Cuvier. — Peron and Lesueur. 



Head and body very thick ; dorsal moderately 

 emarginate ; irregular blackish spots upon the body 

 from the summit of the head to the caudal fin, which, 

 on its superior portion, is also spotted ; the spots are 

 disposed in three ranges, which are rather irregular 

 on the anterior part ; a lunulated emargination above 

 the tail, and another beneath it at the base of the fin. 



Inhabits the N. W. coast of New Holland. 



This lunulated emargination, which exists upon 

 the base of the tail of the Squali here described, are 

 also observable on a species of the genus Garanx, 

 that Peron and myself examined at the port of King 



