WORMS. TEST ACE A. 54. Lepas. 171 



Spinofa, Shell conic with 12 triangular valves, 6 of them more de* 

 preifed lefs and whitiih tranfverfely ftriate, 6 purple 

 and longitudinally ftriate ; all armed with tubular re- 

 curved fpines 



Chemn, Schr. Naturf 5. tab. 5./%. 3, 4. 



Chemn. Conch. B. tab. 98. fig. 84O/. 99./. 841. 



Jnnabits India. Lid with 4 pointed waved ftriate valves. 



Violacea* Shell thick glabrous 6-valved, white with yiolet rays. 

 Chemn. Conch, 8. tab. (jq.jig. 842. 

 Inhabits India; (lightly grooved within, 



Vollicipes. Shell comprefTed erect, many-valved, fmooth : feated on a 

 fhort hard fealy coriaceous peduncle. 

 Argenv. Conch, tab. lb. fig. D. Zoom* t. J,f. G. 

 Knorr, Vergn % 5. tab. l^.fig. J. 

 Chemn. Conch, 8. tab, loo.fg. 851, 852. 

 Inhabits the Mediterrunean, 



The 4 larger <val<ves turned towards each other like the beak of a 

 bird; lefler ones more than 20. 



Cjlimlrica. Cylindrical, (lightly curved, with a very large oblique ori- 

 fice : lip horned. 

 Grono<v. Zooph, tab. ig.f. 3, 4. 

 Ellis Philof, tranfacl. $o,fg. 15. 

 Inhabits (hores of Africa,' under the torrid zone. 



Crifpata. Shell oval-truncate conic, with 6 blueifh valves fhaded with 

 white, and 6 elevated reddifh ones fpinous and per- 

 pendicularly ftriate. 



Schrcet. Einl. Conch. 3. p. 534. tab. ty-fig- 21 ; 



Inhabits - — -frequently found perforated by the Teredo, about 

 an inch high : lid obtu(e. 



Carlo/a* Shell folid white deprelfed with carinous grooves, within 

 unequally fmooth. 

 Pall. Nov. A3. Petrop. 2. p. 240= tab, 6. fig* 24. A, B, 

 Inhabits the Kurile IJlands. 



Strcemia Conico-convex, with 4 ferrate-flriate valves : lid 2-valved. 

 Mull. Zool, Dan, 3. p. 21 tab* 94, fig, I— 4. 

 Inhabits the Northern Seas* 



Ya 55. PHLOAS. 



