2^2 



WORMS. TESTACEA. 62. Venu*. 



•S/W/ fometimes entirely white, fometi;r.es reddifh at the fides 

 and red within with a yellow knob ; perpendicular ftria; 

 ilronger: margin within glabrous, without crenate : flopes 

 narfow : hinge with 2 middle teeth. 



Proftrata. Shell orbicular, tranfverfely flriate, with rough membra* 

 naceous lips. 

 Born Muf. Cos. Vind. tefl. tab. c.fig. 6. 

 Chemn. cor.ch % 6. tab. 29 fi%. 298. 



Inhabits Ccromandel ; 2 inches long and a little lefs broad. 

 Shell flattened black cinereous or brownifh : beaks inflecled I 

 anterior Hope with an oblong gape, posterior heart-fhaped. 



Tenjyrja* 

 rJca. 



r 



Shell lentiform with glabrous wrinkles, white, with a lon-j 

 gitudinal groove on the anterior part each fide. 

 Lifter, tab. 305. Argen<v. conch, tab. 21, N. 

 Knorr Vcrgn. 4. tab. 1 4. fig. 4. 

 Barn. Muf. C<?f. Vind. tefl. tab. $.fig, 8. 

 Schra:t. Jc:im. 31. tab. 2. fig* 8. 

 Cb$mn. conch. 7. tab. 37. fig. 394 — 3 C)6. 



2. With an additional longitudinal groove behind. 

 Lijler Conrh. tab. 265 f tab. 298. 

 Chemn. conch. 7. tab. 39 , Jig. 40S, 409. 



3. Very brittle. O.Fab.fn. Orcsnl. p* 31 3. w- 314.^ 



Inhabits America', 2 inches long : white folid with a linear fron- 

 tal gape; poiterior impreflion fmall wrinkled heart-fhaped : 

 margin very entire. 



Shell white fubgiabrous, with a longitudinal groove on the' 

 anterior part: hinge without lateral teeth. 

 I.tstsr. Comb. tab. 296. yvg-. 133. 

 Chemn. conch. J.tab. ?>%.fg- 399. 

 Inhabits Iceland and Ferroe I/Iand, refembles the lafl. 



ustafa. Shell lentiform glabrous and quite fmooth with excavatec 

 dots. 

 Inhabits India. Muf. Lud. Ulr. p. CO5. n. 68. 

 Shell covered with a thick whitim cruii within, and is probabh 

 the fame as V. tigsrina aeformed by age. 



PurSsafa. Shell lentiform, longitudinally grooved, dotted within. 

 Ru'mpf Mil/, tab. 43. D. Gualu tefl. tab. 75, D. 

 Peiiv. Ami. aq. tab. \8.fig. 6. 

 Chemn. cench. 7. tab. yflfig. 397, 398* 

 Inhabits India, 2 inches long, 2 \ broad, 

 Shell thick antiquated, white mixed here and there with reddifh, 

 covered within with a thick ochraceous crufl ; the margin 

 very entire, 



*Exo!eta* 



