30 CONCHACEA. 



16. C. partumeia, Say, Journ. A. N. S. Phil. v. 2. p. 380. 



17. C. PfeifFeri, Ziegler, Porro. Malac. Com. p. 121. pi. 2. f. 13. 



Pisidium injlatum, Megerle. 



18. C. pulchellum {Pisidium), Jenyns, Monog. p. 18. pi. 21. f. I. 



Pera ptdchella. Leach. 



19. C. rivalis, Draparnaud, Hist, des Moll. pi. 10. f. 4 and 5. 



20. C. rivicola, Lamarck, Turton, Brit. Biv. pi. 1 1. f. 13. 



Tellina cornea, Dillwyn. 



21. C. rhomboidea. Say, Journ. A. N. S. Phil. v. 2. p. 380. 



22. C. Sarratoga, Lamarck, Anim. sans vert. v. 6. p. 271. 



23. C. semen {Pisidium), Menke, Moll. Novae HoUandiae, p. 40. 



24. C. similis, Say, Journ. A. N. S. Phil. v. 2. p. 380. 



25. C. striatina, Lamarck, Delessert, Recueil, pi. 7. f. 4. 



26. C. sulcata, Lamarck, Anim. sans vert. v. 6. p. 271. 



Genus II. CYRENA, Lamarck. 



1. C. australis, Deshayes, Enc. meth. v. 2. p. 50. no. 12. 



2. C. Bengalensis, Lamarck, Delessert, Recueil, pi. 7. f. 6. 



3. C. Carolinensis, Lamarck, An. s. v. (Deshayes' edit.) v. 6. p. 276. 



Cyclas Carolinensis, Bosc. 



4. C. cor, Lamarck, Enc. meth. v. 2. pi. 301 and 302. f. 2. 



Tellina Jiuminalis, Miiller ; Venus fiuminalis. Wood. 



5. C. Cyprinoides, Quay, Voy. de I'Astr. pi. 82. f. 1-3. 



6. C. depressa, Lamarck, Enc. meth. pi. 302. f. 3. 



7. C. fluminea, Lamarck, Anim. sans vert. v. 6. p. 274. 



Tellina Jluminea, Gmelin. 



8. C. fuscata, Lamarck, Anim. sans vert. v. 6. p. 274. 



Tellina Jluviatilis, Dillwyn ; Venus Jluviatilis, Wood. 



9. C. Jayensis, Lea, Trans. Amer. Phil. Soc. v. 5. pi. 17. f. 52. 



10. C. limosa, Gray, Ann. Phil. p. 25. 



Tellina limosa, Maton. 



1 1 . C. Mexicana, Broderip and Sowerhy, Zool. Journ. v. 4. p. 364. 



12. C. oblonga, Quoy, Voy. de I'Astr. pi. 82. f. 6-8. 



13. C. papua, Lesson, Guerin's Mag. Zool. pl. 11. 



14. C. Sumatrensis, Soiverby, Genera, no. 5. 



Cyclas Sumatrensis, Blainville. 



15. C. trigonella, Lamarck, Anim. sans vert. v. 6. p. 273. 



16. C. Vanikorensis, Quoy, Voy. de I'Astr. pl. 82. f. 4 and 5. 



17. C. violacea, Lamarck, Enc. meth. v. 2. pl. 301. f. 1. 



