NATURAL SCIENCES OF PHILADELPHIA. 470 



Gastrochrena inodiolina, Thorpe, Brit. Mar. Conch, p. 33, 1S44. 



Jay, Catalogue, 4th ed. p. 9, 1850. 

 Leach, Moll. Great Britain, p. 256, t. 3, f. 3, 1852. 

 Forbes and Hanley, Brit. Moll. i. p. 132, t. 2, f. 



58, and t. F, f. 5, (animal,) 1853. 

 Woodward, Manual, pt. 2, t. 23, f. 15, 1854. 

 Gray, Proc. Zool. Soc. Lond. p. 316, 1858. 

 Gastrochzena dubia, Philippi, Wiegmann's Archiv. Natur. t. 7, f. 1, 1845. 

 Catlow, Conch. Nomenc. p. 2, 1845. 

 Deshayes. Expl. Sci. de l'Algerie, Moll. p. 34. 



" Traite Elem. i. pt. 2, p. 34, t. 2, f. 4, 5, 



1843 '50. 

 Rocellaria dubia, H. and A. Adams, Genera, iii. t. xci. f. 2, a, b, c, 1855. 

 Description. "R. vagina pyriformi, contorta, crassa, intus, ad aperturam 

 bicarinata ; testa, ovato-oblonga, angusta, transversim striata, antice sinuata ; 

 natibus prominulis, latere antico brevissiino." Deshayes. 

 Hab. England, Mediterranean. 



This species may be readily distinguished from the others by the slight 

 truncation of the margin at the posterior end of the shell, by its short, wide 

 hiatus, and its large laminar hinge plate. 



There are many excellent figures in the list of works quoted above, and a 

 very full description is contained in the " British Mollusca " of Messrs. Forbes 

 and Hanley. 



4. R. hians,* Chemnitz, sp. 



Pholas hians, Chemnitz, x. p. 364, t. 172, f. 1678 and 1679. 1788. 

 Gmelin, Syst. Nat. 3217, 1790. 

 Schreibers, Versuch nach Conch, ii. p. 367, 1793. 

 Dillwyn, Desc. Cat. i. p. 39, 1817. 

 Wood, Gen. Conch, p. 85, 1815. 

 " Index Test, 1st ed. p. 9, 1818. 

 " " " 2d ed. t. 2, f. 11, 1828. 



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

 Chasna cuneiformis, Retzius, Nov. Test. Gen. p. 19, 1788. 

 Gastrochsena cuneiformis, Speugler, Nov. Act. Sc. Soc. ii. p. 179, f. 8 



11, 1783. 

 Lamarck, Anim. Sans Vert. v. p. 447, 1818. 

 " (Desh edit.) Anim. Sans Vert. vi. 



p. 49, 1S35. 

 Rang, Tabl. Meth. 



Sowerby, Genera, f. 3, 4, 5, 1820 '24. 

 Blainville, Man. de Malacol. p. 574, t. 79,f. 



5, 1825. 

 Anton, Verzeich der Conchyl. p. 1, 1839. 

 Hanley, Desc. Cat. p. 10, 1842. 

 Reeve, Conch. Syst. t. 20, f. 4, 5, 1843. 

 Potiez et Michaud, Gallerie des Moll. ii. p. 



267, 1844. 

 Catlow, Conch. Nomenc. p. 2, 1845. 

 Jay, Catalogue, 4th ed. p. 8, 1850. 

 D'Orbigny, Sagra's Hist, de l'lsle de Cuba, 



Moll. p. 228, 1853. 

 Beau, Cat. des Coq. Guadaloupe, p. 27, 1858. 

 Gastrochaena hians, 'Gray, Zool. Proc. Lond. p. 316, 1858. 

 Rocellaria hians, H. and A. Adams, Genera, ii. p. 336, 1856. 

 Description. " R. testa ovata, cuneiformi, tenui, albida, subpellucida, con- 

 centric^ dense striata, latere anali elongato, rotundato ; latere anali brevi, 

 angustato, acuminato ; latere palleali hiante." D'Orbigny. 

 Hab. West Indies. 



1861.] 



