186 WORMS. TESTACEA. 58. Turbo, 



C. With the whorls turning in a contrary direction. 



491. T. bidrns. Taper, smooth, brown, pellucid, with 10 

 or 11 whorls slightly crcnate in the suture : aperture 

 2-too<hed behind. 



Linnean Tntnfactions \iii.^. 178. tab. 5. f. 3, 



Shell about half an inch long, armed with white minute papillae 

 or denticulations at the juncture of the whorls. 



492. T, laminatus. Taper, smooth, rufous horn-colour, 

 pellucid, with 10 rather raised whorls: aperture 

 attached to the whorl, 2- foot bed behind. 



Montague Br. Shells p. 359. tab. n./. 4. 



.%<// 3 quarters of an inch long : aperture Miborbicular, contract* 

 ed and,; joined to the body whorl ; lip white, slightly margined 

 and reflected ; pillar not detached from the larger-whorl, furnish- 

 ed with 2 white tooth-like folds. 



493. T. biplicatw. Taper, opake, brown, longitudinally 

 striate, with 12 or 13 whorls : aperture slightly 

 detached from the whorl, 2- toothed behind. 



Montague Brit. Shells p. 361. tab. n.f. 5. 



Shell the size of the last, from which it differs in being strongly 

 striate longitudinally, .and in having the angle of the aperture not 

 joining the larger whorl. 



494. T. nigricans. Taper, opake, blackish, minutely 

 striate, with 11 or 12 whorls : aperture with 2 rather 

 remote teeth behind. 



Donovan t. 72. Br. ZooL t. 82. /. 116. T. perverfus. 



Shell about half an inch long, rcfembling the 2 last, but 5s less, of 

 a blackish-brown colour, is very finely striate, and the teeth arc 

 not contiguous. 



*95. T. labiatus. Taper, opake, light brown, longitudi- 

 nally striatc : aperture 2toothed, with a dilated 

 thick white margin. 



Montague t. u.f. 6. Da Costa tab. $.f. 15. 



Shell 5 eighths of an inch long, with numerous strong regular 

 striae : whorl* 9, fiat, feparated by a fine obfcure line : aperture fub- 

 orbicular, with a sinus at the upper end, and furnished with c. 

 tooth-like laminae ; pillqr u little detached from the larger 

 whorl t 



496. T. perversits. Taper, pellucid, yellowish-ho^ny, 

 obscurely sjtriate. with 8 or 9 slightly rounded 

 whorls : aperture toothless. 



Montague t. u.f. 12. Linn. Tr. viii. t. .f. 2. 



Shell a quarter of an inch long, rather obtufe : aperture fuborbi- 

 cular, with an obfcure knob in the older-onei : pillar Rot detached; 

 the edges thin, white, 



493. T. Vtrtigo. Oval, opake, brown,, obtuse, with 6 

 faintly striate whorls : aperture somewhat triangular, 

 toot lied. 



Montague Brit* Shells. p. 363. tal. i?./. 6. 



Shell hardly a line long, generally with 3 teefh, one on the lip, 

 a>d two on the pillar, with a protuberance at the anglf of the lip ; 

 fometimes with 6 teeth, and even with the rudiment? .flf ft feycnth- 

 sptrtxre slightly margined, \r}<knte.<i, 



