306 



by Mr. Henry Boys of Sandioich, accompanied with 

 many elegant drav/ings of various fubjefts in natural hif- 

 tory ; amongft which is a very good figure of this (licll, 

 with the following remarks : 



" Has much the habits of Turbo littoreus, and the va- 

 *' rieties of both fhells run much into one another ; it dif- 

 *' fers however in the diftinftnefs of the whirls, in the co- 

 " lour being generally yellow, being a fmaller (liell, and 

 *' in being viviparous ; befides, the two fliells are feldom 

 " found together ; on the fpot where this Turbo is found 

 " there are not any of the T. littoreus, though the latter 

 " are abundant in the neio-hbourhood. On ftones be- 

 " tween high and low water-mark at Whitjlable, on the 

 " Hearn fide of the copperas works." 



13. 

 Striatulus. Turbo fti-iatulus. Lin. Syji. p.l23S. — GmeJ. Syft. p.3504.67. 



Tab. 10. f. 5. Tiirt. Lin. iv. p. 494. 



Turbo carinatus. Da Ccjia. p. 102. t. 8. f. 10. 



T. with four or five volutions, each terminating in a 

 flat top, which marks their divifions ; the bafe is wrought 

 with fine fpiral ftriac, which towards the upper part rife 

 into three diftant, elevated, membranaceous ridges, con- 

 tinuing throughout the fuperior volutions^ but become 

 faint towards the apex : the furrows are deep and round- 

 ed at the bottom : it is ftrongly ftriated longitudinally 

 from top to bafe ; but moft confpicuous in the fur- 

 rows, being a little interrupted by the ridges, yet giv- 

 ing 



