234 



WORMS. TEST ACE A. 62. Venus. 



Brit, Zooh iv. p. 96. Gualt. test, tab. 7 $>JgS+lJ£* 



lifter conch, tab. 2^. fig. 88. 



Lifter an. Angl, tab, ^..fg, 23. 



Cbemn. conch.. 7. tab* Ity-fg, 412 — 414. 



Inhabits European Seas j 1 | inch long and nearly 2 broad ; co- 

 vered with a chefnut cuticle, under which it is white, angu- 

 lar, with unequal ftrix which are a little more remote than 

 they are in V, exoleta; anterior flope with a long and narrow 

 tent, pofterior deprefiion heart-fhaped : hinge with 1 tooth in 

 one valve and 2 in the other. 



Peclinata. Shell fublcntiform with longitudinal wrinkled grooves, 

 branched near the anterior margin. 



Lister conch, tab. 312, 313. 



Rump/. Muf. tab, 42. D. Pet. amb. tab. 1 S.fg, 14. 



Gualt, tejl. tab, 72. E, F. tab, 75. A. 



Argen-v, conch, tab, 21. P. Knorr Vergn, 6. tab. ^»fg» 3. 



Chemn. conch. 7. tab. 30. fig. 41 5*~ 419. 



Inhabits the Indian ana American Ocean ; above 1 \ inch long, 

 and about 2 broad, more ©r lefs convex, fometimes white with 

 a brown pofterior itope and a few fpots on the anterior part, 

 fometimes entirely fpottcd with brown, fometimes marked 

 with a few black brown fpots on the anterior part : margin 

 unequally crenatc. 



Scripta, Shell lentiform comprefTed ftriatc angular, the hinder angle 

 ftraight. 

 Rumpf. Muf, tab* 43. C. Argennj. conch, tab. 24. M. 

 Pet. Amb, tab, 18./^ 3. Gualt, teft.tab, 77. C. 

 Knorr Vergn, 5. tab. l$-fig* 3» 

 Chemn. cor.ch. 7, tab. 40. fig, 420—426. 



2. Born, Muf. Coef. Vind. teft, tab. $.fig, J. 

 Chemn. conch. 7. tab. 39. fig. 410, 41 1, 

 Inhabits the Indian Ocean and Red Sea: very rare,' 

 Shell truncate each fide, the hind-part more fo than the fore ; 

 within white with a brown fpot ; without varied; margin 

 very entire : dopes marked with chefnut fpots. 



EdentulL. Shell fubglobular-lenticular, wrinkled, without teeth: 

 pofterior (lope ovate. 



Lister conch, tab, 260, Gualt. test. tab. 88. B, 



Chemn. conch. 7. tab. J^o. fig. 427— 429. 



Inhabits the American Ocean : diaphanous whitiih, when frelh a 

 little reddifh, within golden except the margin which is very 

 entire : fent on the anterior flope narrow : beaks turned back. 



Shell very convex and furroundeel with rings, the inter- 

 mediate grooves crenate: pofterior llope heart-ihaped : 



margin crenulate. 



Clemn, 



