Concliifera. ]^5g Avicula. 



Haydeni, Hall & Meek, Mem. Acad. Boston, 2d s. vol. v, o82, 



1, 5. Neb. C. 



interrupta, d'Orb. P. F. 477, 891, 14-18. Fr. U. G, 



Janceolata, Forbes, not JSow. (sublanceolata), Q. J. Gr. S. vol. i, 

 247, 3-8. 



laripes, Morton, Synopsis, 63, 17, 5. Del., (Gr., Eussia, Crimea 



fide d'Orb.). a 



lineafa, Roem. (sublineata), Nord. Kreid. pi. 8, f. 15. 



linguaeformis, E. & Shum. 1855, Proc. Acad. p. 163. Vancou- 

 ver Id.* a 



modioliformis. Mull. Aacli. Kreid. 29, 2, 14. G. 0. 



Moutoniana, d'Orb. P. F. 479, 393. Fr. U. G, 



macroptera, Roem. 1841 (Cornueliana), Kreid. not Roem. 1836, 

 not Lam. 



neglecta, Pveuss, Bohm. Kreid. 23, 32, 10. G-. C. 



Nebrascensis, E. & S. Trans. St. Louis Acad. vol. i, p. 38. Ne- 

 braska. G. 



nitida, Forbes, G. T. vol. vii, 151, 16, 6. India. G. 



Nysa, d'Orb. Prod. 197. Fr. G. 



Olisiponensis, Sharpe, Q. J. Gr. S. vol. vi, 178, 18, 3. Portugal. G. 



paucilineata, Eeuss, Bohm. Kreid. 23, 32, 11. Gr. G. 



pectinata, Sow. G. T. vol. iv, pi. 14, f. 3. Fr., E. L. G., JST. 



Pedernalis, Poem. Kreid. Texas, 61, 8, 1. Texas. C, 



pectiniformis, Gein. Charak. Kreid, 79, 20, 37. G., Fr. G. 



pectinoides, Peuss, not Soio. (subpectinoides), B. K. 23, 32, 8-9. 



Perigordina, d'Orb. Prod. 249. Fr. G. 



petrosa. Con. Jour. Acad. 2d s. vol. ii, 274, 24, 15. Del., (Neb. ?) G. 



planisulca, Roem. Kreid. Tex. 62, 7, 7. Texas. G. 



plicata, d'Orb. not Soto, (subplicata), P. F. 475, 391, 8-10. 



pulchella, Math, (pectiniformis). Cat. 176, 26, 4-5. 



radiata, Gein. not Leach (Roxelana), Char. Kreid. 56, 10, 6. 



Rauliniana, d'Orb. P. F. 474, 391, 4-7. Fr. G. 



Reichii, Roem. Sp. (Gervillia), d'Orb. Prod. 168. G. U. G. 



Rhodani, P. & R. Env. Genev. 494, 41, 2. Fr. G. 



Roxelana, d'Orb. Prod. 168. G. U. G. 



semiplicata, Gein. Charak. Kreid. 20, 31, 79. G. U. G. 



Samarcnsis, Con. Lynch's Exped. 225, 19, 107. Syria. G. 



semiradiata, Reuss, Bohm. Kreid. 23, 32, 7. G. U. G. 



subdepressa, d'Orb. Prod. 119. Fr., E. L, G. 



* I have little doubt but that this species will prove identical with A. petrosa. 

 Con., although I have not had an opportunity of comparing specimens of them. 



