212 TURBO. TURBAN. 



tubercles at the points of section : at the base of the pri- 

 mary volution the spiral ridges are very prominent, and not 

 crossed by the longitudinal ones : aperture nearly orbicu- 

 lar, margined, not perforated behind the pillar: length two 

 lines ; breadth one. 



This species appears to differ from T. Calathriscus, in 

 the more tumid and rounded volutions, obtuse point, the 

 want of the longitudinal lines at the base of the larger 

 spire, and the margined outer-lip which is plain and not 

 slightly toothed within. 



Found by the Rev. Mr. Fleming, at the Isle of Noss, in 

 Shetland : rare. 



47- Turbo striatulus. Streaked Turban. 



Montagu, pi. 10. f.6 DaC0&-te,pl. S.f. 10 Dorset Cat. 

 pi. 14. f. 10. 



Shell somewhat oval, rather obtuse, white, semitranspa- 

 rent : spires four or five, swollen, flattened at the top of 

 each ; the larger one strongly striate circularly, and these 

 striae towards the junction of the body with the next 

 volution rising into three distinct raised membranaceous 

 ridges, continuing throughout the smaller ones, but in a 

 fainter manner towards the point ; between these trans^ 

 verse striae are strong longitudinal ones, slightly inter- 

 rupted by the ridges, and forming a faint cancelled appear- 

 ance : aperture somewhat orbicular, angular at the upper 

 part, and margined : length two-tenths of an inch ; breadth 

 riot so much. 



On the western coasts : very rare. v. m. 



48. Turbo reticulatus. Tessellated Turban. 



Montagu, pi. 21. f. I Linn. Trans, iii. pi. 13. f. 1.9,20. 



Shell conic, pointed, strong, opake, dirty white or dull 

 brown ; spire six, much rounded and well defined, strongly 

 striate both longitudinally and transversely: aperture nearly 

 orbicular, thickened by a rib ; the inner-lip a little reflected, 

 and forming a slight groove behind it : length hardly the 

 tenth of an inch ; breadth nearly as much. 



It differs from the T. Punctura, in having the outer-lip 

 thickened with a rib behind it. 



Pembrokeshire, Kent, and Seaficld in Ireland, v. m. 



41). Turbo 



