24S 



WORMS. TESTACEA, 64. Chama. 



. 

 Moltkiana* Shell obtufely triangular equilateral plaited : anterior flope 1 ; 

 elevated, with oblique plaits and flrice. 

 Chemn, conch. 7. tab, dfi.fig. 484 — 487. 



Inhabits refembtes Ch. Cor, about the fize of an hazel nut; 



milk-white opake, the beaks a little diitant : hinge with a 

 rounded narrow tooth under the beaks and an adjoining hollow 

 for the infertion of the tooth in the oppofite valve; a little 

 forwards is another long deep hollow between 2 teeth, and a 

 little further back another round dilated tooth. 



Concamcra- Shell with tran'fverfe wrinkles crolimo; the broad longitude 

 fa * nal ftria^: in the middle of each valve within is an- 



additional chamber.* 

 Walch, Naturf. 12./. 53. tab. i.fig. 5 — 7. 

 Chemn, conch. 7. tub. ^O.jig- 506. a — d. 

 Inhabits the American Ocean: (mall, whitifh, very rare. 



Maccro- Shell rounded, with lamella? difpofed in row's: internal 

 fhylla* margin crenulate. 



Seba. Muf 3. tab. SS'fig, 8. ■ j 



Knorr Vergn. i.t. 21, f. 2, and $, /. 24./". 1* or<^o 4 

 Chstnn. conch, 7. tab, $2 . fg. $l-\> S l 5' 



2. Scba Muf. 3. tab. 89, fig, 12 ? 



Inhabits the American Ocean; refembles Ch. gryphoides. 



Shell fo me times yellow or red, fometimes varied with white and 

 red, within white or red or variegated: both the valves con- 

 vex, the lamellae increafing towards the margin. Probably a 

 variety of C. Lazarus.' 



Fo I/ace a. 



Arata. 



Fafca. 



Shell white with foliaceous ferrate tranfverfe ftrice, the! 

 interfh'ces crenate: beaks recurved. 



Lister cench. tab. 21 5 2 if. fig. 51 — 53. 



Klein oft 'r, tab. 12. fig. 81. 

 Chemn. conch. 7. tab. 52. fig. 521. 



2, Lifter conch tab. 215. fig. 50. 



Inhabits the Mediterranean and American Seas, and is found fofftli 

 in Campania: fometimes round, fometimes oblong. 



Shell rounded, white undulate with brown, with triangulaq 

 wrinkled perpendicular ribs : margin unequal. 

 Bonan.recr. 2. fig* 86. Muf. Kirch. 2. fig. 84. 

 Inhabits mores of Syrtic'u/e ; probably a Cardium. 



Shell wrinkled oblong narrow brown: lower valve with 2 

 projecting rounded fubiiicurved beak, 

 Inhabits Gualt. test, tab. \b%ipg, I. 



Gilna. 



