10 



Pliolas Beauimia, Recluz, Jour, do Conchyl. iv. 49, t. 2, f. 1, 



2, 3, 1853. 

 FJioIas Caribcm, D'Orbignj, Moll. Sagra's Cuba, 216, t. 25, 



f. 20—22, 1853. 

 Pholas Hornheckii, D'Orbigny, Moll. Sagra's Cuba, 217, t. 25, 



f. 23—25, 1853. West Indies. 



11. M. cuneiformis, Say, Jour. Philad. Acad. ii. 322, 1822. 



Sowerbj, Thes. ii. 495, t. 104, f. 38, 39, t. 108, f. 86, 87. 

 Pholas Pdwardsii, Gray, Syn. Brit. Mus., 1820. 

 Pholas rudis, Gray, Syn. Brit. Mus., 1820. 



Southeini United States, West Indies. 



12. M. rivicola, Sowerby, Thes. ii. 496, t. 108, f. 90, 91, 



1849. 

 Adams and Reeve, Voy. Samarang, 84, t. 23, f. 5. 



Pantai River. 



13. M. striata, Linnreus, Syst. Nat., p. 1111, 1758. 



Chemnitz, Conch. Cab. t. 102, f. 867, 868. Gualtieri, 

 Test, t: 105, f. F. Mawe, Conch, t. 3, f. 1. Reeve, 

 Conch. Syst. t. 24, f. 2. Rumpkin's Mus. t. 46, f. 8. 

 Sowerby Genera, Pholas, f. 2. Sowerby, Thes. ii. 494, 

 t. 104, f. 40—42. Chenu, Man. ii. f. 48, 50. Wood, 

 Gen. Conch, t. 16, f. 1—4, 8. Wood, Index Test, 

 t. 2, f. 7. Adams, Genera, t. 90, f. 5. Woodward, 

 Manual, t. 23, f. 21, and British Authors. 



Pholas pusilla, Linn^us, Syst. Nat. p. 1111, 1758. Don- 

 ovan, iv. t. 117, 1799. 



Pholas elavata, Lam., Anim. s. Vert. v. p. 446, 1818. Encyc. 

 Meth. t. 170, f. 1—3. 



Pholas conoides, Fleming, Brit. Anim. 457, 1828. 



Pholas lignorum, Spengler, Berl. Ges. Nat. iv. 



Pholas 7iana, Pultney, Dorset. Cat. 27, 1799. 



Pholas falcata, Wood, Gen. Conch, t. 16, f. 5—7, 1835. 

 Index Test. Pholas, t. 2. f. 8 ? 



Pholas terediniformis, Sowerbv, Thes. ii. 490, t. 108, f. 97, 

 98, 1819. 



Pholas semicostata, Lea, Bost. Proc. t. 24, f. 1, Nov., 1844. 

 Sowerby, Thes. Conch, ii. t. 108, f. 84, 85. 



England, West Indies, Philippine. 



Genus DIPLOTHYRA, Tryon. 

 Proc. Philad. Acad., Sept. 1862, May, 1863. 



1. D. Smithii, Tryon, Philad. Proc, Sept. 1862. 



Tottenville, Staten Island^ N. Y. 



