■252 
Afra. 
ToJfiUt, 
WORMS. TESTACEA. 65. Area. 
Shell whitiOi, covered with a whiter fltin, with deculft*'' 
Itriae, grooved and obliquely truncate. 
Inhabits -Africa. Mans,/eneg. l. tab. 8. 
Sheli 4-5 lines long and 3 broad ; longicnduial grooves 40-'5®’ 
tranfverfe ones so: beah approximate: margin clofcd. 
Shell thick roundilh, longitudinally flriate and tranfverfe’l' 
ribbed j the ribs with undulate itrise. 
Schrast. ncue litferat. 2 , fig. 3, 4. 
Found in a foffile Hate in the Dutch/ of Imbourg-. 3 
Jong, 3 1 broad; ^ ^ 
CttHcellata. Shell with cancellate ftrite and bearded ; the margin gaP*'’^ 
in the middle. ^ ® : 
Schrat. Einl, Conch. '3. tab. g.fig. 2. 1 
Inhabits the Ocean; covered with a moffy Ikin, I 
which It IS brownifh. outwardly mixed with white will’ ’ 
tufts of hairs : Jlightiy recurved with a lanceolate ' 
• preffion behind them. 
Minute. Shell a little comprefTed, tranfverfely Jlriate, tapering at 
oppofite ones. 
Chemn. conch. 10. tab. ijo./tg. 1657, 1658. 
^ Inhabits the Greenland Seas ; refembles a Mya • ai lines M '■ j 
broad: ochjaceous, glabrous, doted; beah connivent wb''* 
acute not Itnatc. 
C. Margin crenate; beah recurved. 
• Laaea. Shell fubrhombic diaphanous, wjth obfplete deculfate 
J-tfier conch, tab. 2‘i'^.fig. 6 ^. 
Bonann. reer. 2. fig. 34. Muf kircb. 2. f 3,. 
Lhemn. conch. 7. tab. SS.fig. 547. 
Inhabits moll European Seas: fize of a horfe-bean : beat 
proximate, I 
i 
flodukfa. Shell oblong with ftriatc tubercles; beaks incurved j 
margin entire plofed. 
Mull. Zool, Dan. prodr. 2384. 
Inhabits Denmark; reiembicsthe laft. 
^ntiguata. Shell obliquely heart-fliaped, with numerous unsfi®^ 
grooves. 
Lister conch, tab. 230. fg. 64. t. 236. f. 70. 
Adantjeneg. i. tab. i^. fg- 7. Barbul. t. 8 . f, 3, 
Bonan rccr. and Muf. Kirch. 2. fig. 73, 7X. ^ 
