On some new Sharks. 4.'}5 



wliovls aro spirally sciilptuied, lu'itlier of which fV.'ituies is 

 mentioned in the diagiiosis hy Prof. Piisbry. I'robaljly 

 the type i.s not mature : all the mature specimens I have seen 

 possess the tubercle; on the other hand, one shell, which 

 appears not quite mature, shows but a slight indication of a 

 swelling. The extreme form mentioned above from Goto 

 measures : diam. 5'75 mm., alt. 5 mm. (figs. 3 a-3 c mag- 

 nified, fig. 3 d natural size). 



Eulota {Coelorus) cavifectum, Pils. (Fig. 4 a enlarged, 

 fig. 4,b natuial size.) 

 JEulota (Calorus) cavitectum, Pilabry, ' The Nautilus,' xvi. (1903) p. 134. 



Kochi, prov. Tosa, Island of Shikoku. 



As in the case of E. caviconus^ Prof. Piisbry makes no 

 mention of the microscopic spirals. This feature, however, 

 is not easily observed, except where the cuticle is worn oflf. 



LXV. — Descriptions of some new Sharks in the British 

 Museum Collection. By C. Tate Uegan, B.A. 



Orectolohus japon icus. 



CrossorJdnus barbatus (non GmeUn), Miill. & Heule, Plagiost. p. 21, 

 pi, V. (1841); Schleg. Faun. Japon., Poisd. p. 301 (l85Uj. 



Crossorhinus barbatus (part.), Dumeril, Elasmobr. p. 338 (I860); 

 Giintb. Cat. Fish. viii. p. 414 (1870). 



Orectolubus barbatus, Jord. & Fowler, Proc. U.S. Nat. Mus. xxvi. 1903, 

 p. 60G. 



Closely allied to 0. barbatus, but ditferiug in the following 

 characters : — No papilliform projections above the eye. 

 Nasal cirrhus with a simple branch. On each side 2 or 3 

 simple dermal lobes above tlie upper lip, followed by 3 or 4 

 near the angle of the mouth, the first and last of whicii are 

 bitid, and by 2, short, broad, and distally notched, at the side 

 of tlie head. Free edge of dorsal tins stiaiglit or slightly 

 concave. Pectoral extending at least | of the distance from 

 its origin to that of the ventral. Yellowish, upper surface 

 with brownish vermiculations or reticulations; back with 

 broad dark brown cross-bars with yellow vermiculations. 



Hab. Coasts of Japan and China. 



Two specimens (?) of 1000 and 780 mm. from Japan. 



The Australian 0. barbatus has 1 or 2 papilliform pro- 

 jections above the eye, the branch of the nasal cirrhus bifid, 



