WORMS. TESTACEA. 65. Area. 249 
Shell roundilh ventricofe Ineqtiivalve milricatej with fcat- 
tered unequal fcaly fpines. 
Inhabits America. Regenf. conck.. I. /• 4./". 44* 
Shell citron colour. 
Shell roundilh, longitudinally flriate; pofterior Hope retufe. 
hlalin.ntit. Hist. Chili, p. ijS, 
Inhabits the Chikfe Ihores, where it buries itfelf in the fands.‘ 
Jhell white violet and yellow, within elegantly purple : about 
4 inches in diameter: the filh is a very rich and plcafant food. 
Shell fuborbiciilar, with very deep grooves i the wrinkles 
ilightly imbricate; margin doubly folded. 
Inhabits about the fize of a man’s finger; gibboui, thick, 
with 30 grooves,- the outer margin with concave eminent 
proje£lions from the wrinkles, the inner margin obtufe plaited; 
hinge with 2 or 3 oblique grooves declining towards the an- 
terior fide* 
Shell oblique with a lateral oblique pit, wrinkled: callus 
of the hinge toothed. 
Inhabits Barbary •, refembles Anomla Gryphi. 
Shell very ponderous and thick, about the fize of a fill ; beaks 
obliquely incurved back : anterior Hope longitudinally grooved 
and oblique towards the beaks, polterior flope longitudinally 
concave. 
Shell cylindrical white diaphanous, with decufTate ftriae; the 
tranfverfe ikiae arched and imbricate. 
Inhabits Chemitico/tch. \o. tab. I’jz, fg. 1673, 1674. 
^'•5. ARCA, Anmn/ a Tethys?j7ie// bivalve^ 
equivalve: hinge with numerous lharp 
teetli alternately inferted between each 
other. 
A. Margin very entire; leaks recurved. 
parailclipiped, deeply ftriate longitudinally, the lelfer 
valve obliquely carinate. 
MuJ. tall, egj.fig. k. Gualt. ted. tab. 95. B. 
•^onann. Llnf. kirch. 2., Jig. 122, 123. Barbut. tab. "/.fig, I. 
Petiv. iunb. tab. za.jig. 9. Argennj. conch, tab. 19. I. 
Meinojlr. tab. ^.fig. l6. Lejfer tejl. Jig, 137, 
