126 



Helicina Lm. 



platychila Mhlfld. Gdlpe. 



plicatilis Mss. Samoa. 



polita Sow. Phlppn. 



pulcherrima Lea. Cuba. 



Keeveana Pfr. ,, 



remota Poey. ,, 



reticulata Pfr. Austrl. b. 



rhodostoma Gray. Gdlpe. 



rhynchostoma Sh. Colunib. 



Kohri Pfr. I. Marq. 



rotunda Morl. Cuba. 



rubella Wright. Cuba. 



rubromargiuata Gdlcb. ,, 



rugosa Pfr. „ 



Sagraiana D'Orb. ,, 



Salvini Tristr. Gnatem. 



Semperi Mss. Oneata. 



silacea Morl. Cuba. 



V. ochracea Poey. ,, 



solidula Gray. I. Elisbth. 



spectabilis Gdlcb. Cuba. 



sphaeroidea Pfr. Loyalli. 



straminea Morl. Cuba. 



Strebeli Pfr. Mexic. 



striata Lm. Portor. 



striolata Sow. Martnq. 



subdepressa Poey. Cuba. 



subfusca Mke. S. Thom. 



subglobulosa Poey. Cuba. 



sublaevigata Pfr. N. Hebrid. 



submarginata Gray. Cuba. 



Tamsiana Pfr. Puert. Cab. 



tectiformis Mss. Mango. 



Tilei Pfr. Brasil, 



titanica Poey. Cuba. 



trochiformis Sow. Negros. 



trochulina D'Orb. Portor. 



tropica Jan. Texas, 



turbinata Wgin. Mexic. 



uberta Gld. I. Sandw. 



unidentata Pfr. Mexic. 



variabilis Wgm. Brasil, 



vernalis Morl, Guatem. 



vinosa Sh. Portor. 



vitiensis Mss. Viti Lew. 



vittata Gdlcb. Cuba. 



zebriolata Pfr. Upolu. 



Zepbyrina Ducl. Orizab. 



Zoae Pfr. Halmh. 



zonata Sow. Brasil. 



509. Gen. Schasicheila Sh. 



alata Mke. Ver. Crz. 



510. (Jen. Alcadia Gray. 



Brownii Gray. Jam. 



511. Gen. Ceres Gray. 

 Salleana Gray. Mexic. 



512. Gen. Proserpina Gray, 

 depressa D'Orb. Cuba. 



globulosa „ „ 



nitida Gray. Jam. 



513. Gen. Georissa Blfd. 

 pyxis Bens. Pegu. 



XCIII. Farn. 

 Assiminiidae H. A. Ads. 



V. Class. Acephala Cuv. 

 XCIV. Farn. Pholadidae Leach . 

 I. Subfm. Pholadinae H.A. Ads. 



515. Gen. Pholas L. 

 costata L. Amer. 



crucifera Sow. „ 



latissima „ 

 truncata Say. N. York. 



5 IG. Gen. Dactylina Gray, 



antipodum Pbl. N. Zeal. 



callosa Lm. Hayonn. 



chiloensis King. I. Chiloe. 



