TURBO. TURBAN . 
212 
tubercles at the points of section; at the base o/ 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.5— Da Costa, pi. 8. f. 10— Dorset Cat. 
pi. 14. f. 10. 
Shell somewhat oval, rather obtuse, white, semitranspa-- 
rent: spires four or live, swollen, flattened at the top of 
each ; the larger one strongly striate circularly, and these 
strim 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 
not so much. 
On the western coasts : veiy rare. v. m. 
48. Turbo retieulatus^ Tessellated Turban. 
Montagu, pi. 21. f. 1— Linn. Trans, iii. pi. 13. f. 19,20. 
Shell conic, pointed, strong, opake, dirty white or dull 
brown; spires 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 Seafield in Ireland, v. m. 
49. Turbo 
