TURBO. TURBAN. 195 



bicular ; the outer-lip thick, but sloping to a sharp edge ; 

 inner-lip broad, with a small groove and perforation : 

 length about half an inch 5 breadth more than half as much. 

 On the leaves of Fuel. v. v. 



5. Turbo canalis. Channelled Turban. 



Montagu, pi. 12. f. 11. 



Shell conic, pointed, transparent, horn-color, smooth, co- 

 vered with a wrinkled skin, and rarely marked with two 

 brown bands : spires five, rounded and well denned, the 

 first rather large : aperture roundish, a little angular ; the 

 outer-lip very thin ; inner-lip with a small groove and per- 

 .foration : length three-eighths of an inch ; breadth a quar- 

 ter. 



On the leaves of Fuel. v. v. 



6. Turbo vinctus. Banded Turban. Fig. 92, 93. 

 Montagu, pl 7 20. f. 3. 



Shell conic, rather elongated, semitransparent, with a 

 small but not very pointed tip, generally rufous horn-color 

 covered with a very rough wrinkled skin : spires five or six, 

 rounded and well defined, with four or five purplish-brown 

 or chesnut bands on the body volution, and a broad space 

 between the three which are placed near the end and the 

 two which are contiguous to the next volution ; sometimes 

 the color is paler, and the bands fainter and variously dis- 

 posed, and sometimes they are altogether wanting : aper- 

 ture somewhat orbicular, rounded at the base, margined 

 by the outer skin ; the outer-lip very thin : inner-lip with 

 a narrow groove which ends in a small perforation : length 

 a quarter of an inch ; breadth about half as much. 



In all the varieties it may be distinguished from T. cana- 

 lis, by its size and elongated form, in not having the aper- 

 ture somewhat angular, and in the groove and perforation 

 being comparatively smaller : and from T. quadrifasciatus, 

 in being much larger longer and thinner in substance, and 

 in wanting the slight carinated ridge at the base of the 

 larger volution. Some are also of a greenish cast between 

 the bands, and appear finely reticulated when much mag- 

 nified. 



On the leaves of Fuci. v. v. 



b2 B. The 



