182 WORMS. TESTACEA. 58. Turbe. 



strongly cancelled whorls : nurture fuboval, with a thick margin . 

 the outer-lip crenatc within. 



455. T. ventrosus. Conic, smooth, thin, horn-colour, 

 with 6 much rounded whorls : aperture suboval, 

 with an entire margin. 



Montague Brit. Shells. p. 317. tab. !2./. 13. 



Shell zn eighth of an inch long, pale horn-colour, pellucid, rather 

 pointed : aperture orbicular-oval. 



456. T. U(v&. Conic, pointed, thick, rufous-brown, 

 with 6 or 7 "hardly raised whorls : aperture subova), 

 with a slight depression behind. 



Br. Zoot. t. 86. /. 120- Montague p. 318, 



Shell about a quarter of an inch long, opakr, with the whorls 

 feparated by at mall line : inner-lip reflected, forming a fmall de- 

 pression behind. 



457 . T. sukumbUicatw. Conic, smooth, rather obtuse, 

 yellowish-white, with 4 or 5 very tumid whorls : 

 aperture exactly oval, with a slight umbilicus. 



Montague p. 316. Pu.'tn. Dorset, t. i8./. 12. b. 



Shell an eighth df an inch long, differing from ttie two last in 

 hiving the aperture exactly oval, from T. ulvae in having the whorls 

 very much fwollen, and from T. ventrosus in having the inner-lip 



a little reflected and forming a .slight umbilicus or groove. 



458. T. Pullus. Oval, smooth, with 4 or 5 much roun- 

 ded whorls: aperture large, suborbicular, a little 

 produced on the fore part, 



Donovan t. a./. 2-6. Da Costa t. B../. 1-3. 



Shell 3 eighths of an inch long, gloisv, white with red or pur- 

 plish marks variously difpofed in bands fpoti or lines ; the first 

 whorl very large. 



459. T. ruber. Conic, smooth, pointed, reddish-brown, 

 with 5 rounded whorls : aperture suborbicular, a 

 little reflected on the pillar. 



4dams Linn. Trans. 3. tab. \3.f. i. 43. 



2. White, perfectly tranfparent. Montague p. 321. 



Shell an eighth of an inch long or rather more, with rounded 

 whorls divided by a -fine feparating line. 



460. T. reticulatus. Conic, pointed, light-brown, with 

 6 much raised strongly feticulate wherls: pillar 

 subumbilicate. 



Adams Linn. Trans. 3. ft. 66. tab. 13./. 19. 20 



Shell the tenth of an inch long, whitish-brown, opakc : aperture 

 suborbicular, margined : inner-lip fpreading on the pillar, forming 

 a groove or slight-umbilicui. 



461. T. scmicostatus. Conic, short, white, with 4 or 5 

 rounded whorls, the largest of which is faintly ribbed 

 and obscurely striate transversely. 



Montague p. 326. Suppl. tab. 21 ./. 5. 



Shell half a line long, obtusely-pointed, with the ribs not exten- 

 ding to the lower part of the whorl where the transverse striae 

 commence: aperture suborbicolar : pillar-Up a little reflected ; 

 pillar smooth 



462. T. unifasdatus. Conic, short, smooth, with 5 flattish 

 whorls, the larger of which arc marked with a pur- 

 plish-brown ban^l or two. 



