787 



Venus. 

 V. rostrata, sp. 42, is from Morida. 

 V. Mstrionica, sp. 32 ; a more characteristic form is fio-ured in 



pi. clxviii. f. 229, from Mr. Hanlej's collection. 

 F. Kochii, sp. 105, is V. pauper cida of Chemnitz. 

 r. Africana, sp. 106, kfloridella of Gray. 

 V.flexuosa, sp. 39, is properly V. impressa. 

 r. puncfifera, s]i. 40, is the true V. jlexmsa, of which a more 



characteristic variety is figured in pi. clxviii. f. 230. 

 V. magnificay sp. 2, was first so named by Mr. Hanley. 

 V. sjjurca, sp. 49, was previously named V. mesodesma. 

 V. crehrisulca, sp. 75, is not the shell so named by Lamarck • 



M. Deshayes has named it V. Jukesii. 



The following are new : — 

 Sp. 110. r.parva (pi. clxviii. f. 227, 228), Sowerh?/, jun., like 

 V. pygmaa, but flatter and more finely decussated ; in Mr 

 Hanley's collection ; from Florida. 

 Sp. 111. r. spliarisulca (pi. clxviii. f. 231), Beshayes. 



LIST OF FIGURES m PLATE CLXVIII. 



{The Figure after each Name refers to the number of the Species.) 



CYPEINA AND SUPPLEMENTAEY VENERIDJl]. 



Fig. 1, 2, 3. Cyp. Islandica, Linn. 



212, 213. Cyth. albodorsata, Sowb.jim. 123. 

 214,215. — lineoloXn, Sowb. jun. \M. 



216. — grata, Besh. 121. 



217. — simplex, Sotob.jun. 125. 

 164. Tapes iuaequalis, Sowb.jun. 77. 



165, 166. — anatina, Sowb.jun. 78. 

 167. — fluctuosa, Sowb.jun. 74. 

 227, 228. Verms parva, Sowb.jun. 110. 



229. — histrionica, 32. 



230. — flexuosa, Gml. 39. 



231. — sphajrisulca. Desk. 111. 



5 K • 



