12 



Sowerby, Genera, f. 3, 4, 5. Blainville, Man. de Malacol. 

 574, t. 79, f. 5. Reeve, Conch. Syst. t. 20, f. 4, 5. 

 Pholas hians, Chemnitz, Conch. Cab. x. 364, t. 172, f. 1678, 



1679, 1788. Wood, Index Test., 2d edit., t. 2, f. U. 

 Fistulana rupestris, Bosc. Hist. Nat. des Coq. ii. 205, 1824. 



West Indies. 



5. R. denticulata, Deshayes, London Zool. Proc. 327, 1854. 



Columbia. 



6. R. dentifera, Dufo, Ann. des Sc. Nat. 221, 1840. 



Seychelles and Admiral Is. 



7. R. difficilis, Deshayes, London Zool. Proc. 328, 1854. 



Western India. 



8. R. dubia, Pennant, Brit. Zool. iv. 82, t. 44, f. 19, 1777. 



Donovan, Brit. Shells, iii. t. 108. Wood, Gen. Conch. 



102, t. 25, f. 2, 3. Wood, Index Test., edit. 2, t. 2, f. 



23. Deshayes Traite Elem. i. pt. ii. 34, t. 2, f. 4, 5. 



Philippi, Wiegmann's Archiv. t. 7, f. 1 Adams' Genera. 



t. 91, f. 2. 

 Fholas pusilla, Poli, Test. utr. Sicil. i. 50, t. 7, f. 12, 13, 



1791. 

 Crastrochcena PJioladia, Turton, Conch. Dithyra, 18, t. 2, f. 8, 



9, 1822. Brown, Brit. Conch, t. 48, f.'l3, 14. 

 CJiama parva, Da Costa, Brit. Conch. 234, 1778. 

 Pholasfaba, Pultney, Dorsetshire Cat. 27, 1779. 

 Mytilus ambiguus, Dillwynii, 304, 1817. 

 G-astrocTioina Mans, Fleming, Brit. Anim. 458, 1828. 

 G-astrocJioina cuneiformis, Philippi, Enum. Moll. Sicil. i. 2, 



1836. 

 GastrocJiama Polii, Philippi, Enum. Moll. Sicil. ii. 3, 1844. 

 Crastrochama modiolina, Lamarck, Anim. s. Vert. v. 447, 1818. 



Sowerby, Genera, f. 1, 2. Sowerby, Conch. Man. f. 52. 



Crouch, Introd. Lamarck, t. 2, f. 12. Guerin's Magazine, 



t. 69, 70, 71, 1843. Reeve, Conch. Syst. t. 50, f. 1, 2. 



Leach, Moll. Gt. Brit. t. 3, f. 3. Forbes and Hanley, 



Brit. Moll. t. 2, f. 5—8. Woodward, t. 23, f. 15. 



England^ Mediten'anean. 



9. R. humilis, Deshayes, London Zool. Proc. 327, 1854. 



Philippines. 



10. R. hyalina, Sowerby, London Zool. Proc. 22, 1834. 



Lord Hood's I. 



11. R. impressa, Deshayes, London Zool. Proc. 327, 1854. 



Hab.—? 



