246 WORMS. TESTACEA. 64. Chama. 
Semiorbica- Shell fuborbicular, compreffed, coarfe, with decuffate ftriz, 
lata, Z. Linné Lebrb. Thierr. 2. tab. 37, fo k? 
Inbabits Shell longitudinally ftriate and imbricate with 
feales ; pofterior flope with a whitifh lobe :yhind-margin crenate, 
Calycalata. Shell oblong, with imbricate grooves; the anterior part 
retufe. 
Adanj. Seneg. 1. tab. 15. fig, 8. 
Lister conch. tab. 347. Gualt. teft. tab. go. f. F. 
Born Mf. Caf. Vind. teft, tab. 5. f. 10, 31. 
Chemn, conch. 7. tab $0. fig. $00, 501. 
2. Lister conch. tab, 348. fig. 186? 
2. Bonan, Muf. Kirch.2. fig. 127. 
Inhabits tne Atlantic, American and Indian feas, and is fometimes 
found fofile: about £ an inch long and 12 broad: white, 
rather brown when young: hinge with z teeth: exterior 
margin ferrate, interior fmooth. 
Cordata. Shell heart-fhaped, tranfverfely ftriate; one fide elongated, 
compreffed. 
2. Kidnew-fhaped. — Kzorr Vergn. 2. tab. 23. f. 7. 
Chemn. conch. 7. tab. 50. fig. 502, 503. 
Inhabits the Indian and Red Seas: ferruginous or chefnut. 
Satiara, Shell roundifh, wiih toothed. grooves mixed with dots: 
polterior flope retnfe. 
Inhabits Shell white, the outfide reddifh: grooves ele- 
vated, longitudinally toothed and alternately fhorter: margin 
erenulate: polterior flope heart-fhaped. 
Oblonga. Shell oblong, the fore-part angular, with anterior acute 
teeth. . 
Chemn. conch. 7. tab. 50. fig. $04, 505. 
Inhabits fhores of Guinea, and refembles Mytilus modiolus, 
Shell fatbdiaphanous, white, with very fine decuffate ftriz, within 
citron-colour: margin very entire, hinge with 3 middle teeth, 
and an oblong acute laterat one locking into a hollow between 
2 teeth in the oppofite valve. 
Lazarus, Shell imbricate with jagged lamelle: beak a little fpiral 
obliquely. 
Argenv. conch. tab, 20. F, Knorr Vergn. 1, 1. 8, f. 1. 
Rumpf. Muf. tab. 47, C. ts 48, f. 5. 
Vaient. abb. tab. V3, figs 4. te 16, f. 22. 
Seba My. 3. tab. 88. f. 12, te 89, f. 6, 9, 11° 
Bora 
