718 



43. Venus ovata (pi. clvii. f. 99, 100), Pennant, British 

 Zool. vol. iv. p. 97. pi. 56. f. 56. Venus pectinula, Lamarck, n. 

 26. Cjthersea ovata, Fleming, Brit. Anim. p. 445. Venus ra- 

 diata, Pkilippi, Moll. Sic. 



V. testa ovali, compressa, fulvo-grisescente, fusco obscure ma- 

 culata, radiatira costellata, costellis longitudinaliter striatis, striis 

 concentricis decussantibus ; margine interno crenulato; lunula 

 parva, striata, tumida. 



This is a flattish, oval, dull-coloured shell, with radiating, stri- 

 ated ribs, which are crossed by decussating striae. 



Great Britain, and Mediterranean. 



44. Venus striatissima (pi. clvii. f. 103, 104, 105), Sow- 

 erby, jun. Erycina cardioides, Lamarck, Anim. sans vert. 



V. testa ovali, subcompressa, fulvo-purpurascente, fusco obscure 

 maculata, radiatim et concentrice striata ; striis concentricis, eleva- 

 tiusculis, laminatis ; latere postico subrostrato, productiore ; mar- 

 gine interno denticulato ; lunula parva, striata, fusca. 



A rather fuller but smaller shell than V. ovata, with the radi- 

 ating strise more numerous and equal, and the concentric striae 

 sharp and raised. The hinder part of the shell is slightly beaked. 



Australia. 



45. Venus scabra (pi. clvii. f. 101, 102), Hanley, Sp. of 

 Shells, Appendix, pi. 16. f. 24. 



V. testa ovali-subglobosa, obscure fusca, costellis duplicatis con- 

 centrice squamiferis radiata; lunula scabra. 



More globose than V. striatissima and V. ovata, with the ra- 

 diating strise gathered up, especially near the umboes, into riblets, 

 and crossed by concentric series of sharp scales, which are more 

 elevated at the sides. 



New HoUand. 



46. Venus costellieera (pi. clvii. f. 106), A. Adams, Zool. 

 Samarang, Moll. p. 79. pi. 21. f. 18. 



V. testa oblongo-ovata, subtrigona, suba^quilatera, alba, rubro 

 sparsim variegata, longitudinaliter costata ; costis confertis, decus- 

 satim plicatis, plicis semilunaribus, confertis, posticis squamulosis." 



Nearly resembling the coarser variety of V. ovata, but the ribs 

 broader, and crossed by semilunar plicae. 



Philippines. Cuming. 



