WORMS. TKSTACEA. 58. Turbo. 183 



Montague Brit. Shells Suppl. t. 2-2. /. 2. 



&r//hardly a line long : aperture fuboval, contracted, margined ; 

 outtr-lip thickened inwards in the middle by a knob : pillar-lip with 

 ii teeth, and generally the rudiment of a third above the other. 



483. T. Jumped. Subcylindrical, obtuse, opake, brown, 

 with 8 or 9 obliquely striate whorls : aperture 7- 

 toothed. 



Montague Brit, Shells p. 340, tab. is,/. 12. 



Shell above a quarter of an inch lung, with the whorls slightly 

 raifed : aperture fuborbicular, margined, reflected, white, with 3 

 ridge-like teeth on the outer-lip, and 4 on the pillar: behind the 

 pillar lip at the bafe is a large cavity. 



481. T. elegans. Suboval, grey with a purple tinge : 

 whorls 5, tumid, strongly striate spirally and crossed 

 \f\l\\ faint longitudinal-ones. 



r. Zool. t. 82. /. nc. Donovan t. 59. Da Costa t. 5. /. 9. 



b/W/ 5 eighths of an inch long, fohietimes marked with inter- 

 rupted bands or longitudinal streaks of purplish-brown, often 

 purple at the tip which is rather ohtufe : aperture orbicular, 

 slightly reflected, the margin faintly striate, covered with a horny 

 fpirally striate lid : pillar-Lib with an obfolete cavity behind it. 



1S.3. T.fontinalls. Subconic, thin, horn-colour, tinibt- 

 Jicate, with 4 or 5 much rounded smooth or very 

 finely wrinkled whorls. 



Donov. t. ic'-i. Montague Suppl. t. 22. /. 4. 



Shell about a quarter of an inch long, fubpellncid, with very 

 protuberant whorls, very minutely striate longitudinally, rather 

 obtufe ; aperture quite orbicular: pillar with a fuiall per- 

 foration. 



486. T. nautileus. Pellucid, light horn- colour, with 3 or 

 4 whorls hardly rising one above the other, annulate 

 across, and crested on the hack. 



J.i.in. Transact. viii./>. 169. tab. .f. 4. 



Shell \.\\t eighth of an inch wide, generally covered with a brown 

 skin, furnished with distant raised annotations, which rise on the 

 back into short crests or spines, flat and urnbihcate underneath : 

 aperture truncate, orbicular. 



487. T. cristatus. Siibpellucid, pale horny, flattish above, 

 umbilicate underneath, with 3 or 4 cylindrical 

 whorls. 



Walker Minute Shells /. 18. 



Shell the tenth of an inch wide, fiat t top, vith the \vhorls very 

 faintly striate : aperture circular. 



488. T. depressus. 8ubpellucid, slightly rugged, pale 

 horn-colour, umbilicate underneath, with 4 whorls : 

 aperture circular. 



Montague Brit, Shells p. 439. t. 13 /. 5. Helix. 



Relembles the fast but is less, more solid and opake, and is 

 without fpire : tip more prominent. 



489. T.fuscus. Brown, opake, with 5 striate whorls, and 

 suboval aperture. 



Walker minute Shells f. 42. Minute. 



490. T. Rivulus. White, opake, with 4 striate whorls, 

 and an oval margined aperture, 



Walfor minute SMI*/. 57, 



