10 



Pholas Beauiana, Recluz, Jour, do Conchjl. iv. 49, t. 2, f. 1, 



2, 3, 1853. 

 Pholas Oarihcea, D'Orbigny, Moll. Sagra's Cuba, 216, t. 25, 



f. 20—22, 1853. 

 Pholas Hornbechii, 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 Fdu'anlsii, Gray, Syn. Brit. Mus., 1820. 

 Pholas t'udis, Gray, Syn. Brit. Mus., 1820. 



Southern 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, Linnaeus, 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 imsilla, Linn?eus, Syst. Nat. p. llli, 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. 



