744 MUREX. 



PROxiMUs. 128. Shell oblong, with about eleven 

 longitudinal elevated ribs ; beak short, and 

 rather spreading at the end, 



Murex proximus. Montagu Supp. p. 118. t. 30. f. 8. 



Inhabits the coasts of Scotland near Dunbar. Montagu. 



Shell nearly half an inch long, and Mr. Montagu says it might 

 be readily mistaken for an extraordinary growth of M. cos- 

 tatus, " but it differs materially from that species in the 

 number of ribs, being possessed of eleven on the body or 

 lower volution, whereas the costatus never has more than 

 eight, and usually only seven, and those are broader." 



SEPTANGULARis. 129. Shell oblong, with seven 

 longitudinal continuous ribs scarcely inter- 

 rupted by the sutures ; beak short. 



Murex septangularis. Montagu Test. p. 268. t. 9" f- 5. 



Maton and Racket, in Lin. Trans, viii. p. 144. 

 Murex septem-angulatus. Donovan, v. t. 179. f- 4. 



Inhabits the coasts of the West of England. Montagu, &;c. 



Shell about five-eighths of an inch long, and two-eighths broad, 

 of a pale purplish brown colour, and sometimes white at the 

 sutures ; it has seven or eight whirls, with seven longitudinal 

 continuous ribs, which give the shell an heptagonal appear- 

 ance. 



TURRicuLA. 130. Shell turreted, with longitudinal 

 plaits and transverse striae : whirls sub-cylin- 

 drical, and flattened at their upper extre- 

 mities ; beak short and broad. 



Murex Turricula. Montagu Test. p. 262. t. 9- f. 1. Ma- 

 ton and Racket, in Lin. Trans, viii. p. 144. Dorset 

 Cat. p. 47. 1. 14. f. 15. 

 Murex angulatus. Donovan, v. t. 156. 



Common on the coasts of England, Wales, and Ireland. 



Shell about three-quarters of an inch long, and rather more 

 than one third as broad, of a brownish white colour, and 

 somewhat glossy ; the whirls rise almost perpendicularly 

 from each other, and form an abrupt slope at their summits ; 

 the aperture is oblong and narrow, and ends in a broad beak. 



RUFUs. 131. Shell turreted, with longitudinal plaits 

 and transverse striee, and the whirls convex ; 

 beak short. 



