MUREX. 759 



Murex adversus. Montagu Test. p. 271, and Supp. 



p. 115. Maton and Racket, in Lin. Trans, viii. p. 151. 



Turbo punctatus. Walkers Minute Shells, f. 48. Adams s 



Microscope, p. 638. t. 14. f.21. 

 Turbo reticulatus. Donovan, v. t. 159. 

 Inhabits the coasts of England and the West Indies. Montagu. 

 , Shell about three-eighths of an inch long, and one-fourth as 

 broad, of an opake pale brown colour, or sometimes white ; 

 its reversed whirls and the middle row of its granules being 

 smaller than the others, will readily distinguish this species. 



SUBULATUS. 163. Shell turreted, with two rows of 

 tubercles divided by a depressed line m each 

 whirl. 



Murex subulatus. Montagu Supp, p. 115. t. 30. f. 6. 



Found among sea-sand at Scalasdale, in the Sound of Mull; 

 very rare. Montagu. 



Mr. Montagu has described this shell to be about three- 

 eighths of an inch long, slender, white, with about fifteen 

 scarcely raised whirls, defined by a purplisii brown spiral 

 line ; each whirl has two rows of beads, divided by a de- 

 pressed line, which is marked with minute elevated longi- 

 tudinal stride. 



DECOLLATus. 164. Shell turreted, and the summit 

 truncated, with longitudinal plaited ribs, and 

 transverse striae. 



Murex decollatus. Linnaus S^st. Nat. p. 1220, Schroetev 



Ei?iL 1. p. 542. Gmelin, p. 3563. 

 Cerithium decoUatum. Bruguiere Enc. Meth. p. 501. 



Inhabits 



M. Bruguiere says, this singular shell is generally about an 

 inch long, and half as broad ; and the summit appears as 

 if it had been broken off, in the same manner as in Helix 

 decollatus; the whirls have numerous longitudinal plaits, 

 and their interstices are very finely striated transversely ; it is 

 „ of a yellowish brown colour, and sometimes has two darker 

 transverse lines round each whirl. 



V S 



