Genus PARAPHOLAS, Conrad. 

 Proc. Acad. Nat. Sci. Philad. 121, 1848. 



1. P. Californica, Conrad, Proc. Philad. Acad. 121, 1848. 



Jour. Philad. Acad. vii. 236, t. 18, f. 5. 

 Sowerbj, Thes. ii. t. 102, f. 6, 7. Hanley, Desc. Cat. t. 

 9, f. 43. 

 Pholas JaneUi, Deshayes, Zool. Proc. 357, 1839. Guerin's 

 Magazine, t. 14, 15, 16, 1840. Chenu, Illus. Conch., 

 Pholas, t. 3, f. 5. Chenu, Man. ii. f. 41, 42. California. 



2. P. quadrizonalis, Spengler, Sowerby, Thes. Conch, ii. 492, 



t. 108, f. 88, 89. 

 Pholas Incii, Sowerby, Zool. Proc. 1849. Thes. Conch, ii. 

 491, t. 105, f. 45, 46. Torres Straits. 



Genus PENITELLA, Valenciennes. 

 Voyage Venus, atlas, t. 24. 



1. P. curvata, Tryon, Am. Jour. Conch, i. 40, t. 2, f. 6 — 8, 



1865. Sts. of Plica. 



2. P. parva, Tryon, Am. Jour. Conch, i. 39, t. 2, f. 4, 5, 1865. 



Lower California. 



3. P. penita, Conrad, Jour. Philad. Acad. vii. 237, t. 18, f. 7, 



1837. 

 Pholas concamerata, Deshayes, Rev. Zoologique, 359, 1839. 



Guerin's Mag. t. 17, 1840. Chenu, 111. Conch, t. 3, f. 4. 



So^yerby, Thes. ii. 497, t. 106, f. 67, Q^, 1849. Chenu, 



Man. ii. f. 43, 44. 

 Pholas ciicullata, Gray, Syn. Brit. Mus. 1840. 

 Penitella Conradi, Valenciennes, Voy. Venus, t. 24, f. 1. 

 Pholas cornea ? Sowerby, Zool. Proc. 12, 1834. 



Genus JOUANNETIA, Desmoulins. 

 Bull. Linn. Soc. Bordeaux, ii. 244. 



1. J. Cumingii, Sowerby, Zool. Proc. 161, 1849. 



Sowerby, Thes. ii. t. 106, f. 56, 67. Chenu, Man. ii. f. 38. 



Philippines. 



2. J. Duchassaingi, Deshayes, Fischer, Jour, de Conchyl. 



375, t. 15, f. 3, 1862. Panama. 



3. J. globosa, Quoy, Mollusques, Voy. Astrolalae, 549, t. 85, 



f. 16—18, 1832. 

 Sowerby, Thes. ii. t. 106, f. 54, 55. Chenu, Man. ii. f. 36. 

 Gray, Figs. Moll. Anim. t. 338, f. 3. Philippines. 



