LUCINA. 



Fig. 



14. L. divaricata, Linn. {Tellina.) — Cardkim arcuatum, L. areuata, 



commutata. — Near Falmouth, 20 fath., Rr. Rounded, with di- 

 verging ribs. 



15. L. flexuosa, Mont. {Tellina.) — Venus sinuosa, Ampliidesma fiex- 



uosa, L. sinuata ; gen. Cryptodon, Axinus, and Ptychina. — 

 Clvde, Bantry, Anglesea, etc., 7 to 80 fath., Mc. Thin, with a 

 fold behind. 



16. L. borealis, Linn. {Venus.) — Tellina radula, Lucina r., L.alba. — 



Many Brit, loc., 1 to 90 fath., C. Lenticular, concentrically 

 laminated. 



17. L. leucoma, Turt. — L. laetea, not Linn,, Loripes lactea. — Torbay, 



Scarborough, Bantry Bay, etc., low-water to 80 fath., C. Round, 

 smooth. 



18. L. spinifera, Mont. {Venus.) — Myrtea s., L. hiatelloides. — Dart- 



mouth, Plymouth, Hebrides, etc., 8 to 100 fath., M. R. Oval; 

 dorsal margin spiuose. 



Diplodonta, Mont. 



19. T. rotundata, Mont. {Tellina.) — T. undata, Lucina r., D. dilatata, 



— Dorset, Devon, Tenby, Bantry Bay, etc., 7 to 25 fath., R. 



Clausina, Jeffreys. 



20. C. ferrtjginosa, Forbes, {Kellia.) — Skye, Loch Fyne, etc., 30 to 



100 fath., C. Concentrically ribbed, minute, oval. 



21. C. croulinensis, Jeffreys. — Croulin Island, Shellands, R, Sub- 



orbicular. 



22. C. abysslicola, Jeffreys. — Not ribbed, R. 



