Conchifera. /. Pharella. 



PHARELLA. 



? Dakotensis, M. & H. (Solen), 1860, Proc. Acad. 425. Neb. <7. 



PHOLADOMYA, Sow. 1826. 



S. G. Anatimya, Con. 1860. 



aequivalvis, Goldf. Sp. (PAPYRIDEA), d'Orb. Prod. 234. G., 



Fr., India. (7. 



Agassizii, d'Orb. P. F. 352, 362, 1-3. Fr. N. 



Albina, Eeiche, Roem. Nord. K. 75, 10, 7. G. U. G. 



alta, Roem. Sp. (Homomya), Gabb, 1861. Tex. C. 

 acutisukata, Desh. (PANOPAEA), M. G. S. F. vol. v, pi. 3, f. 2. 



alternans, Roem. Nord. Kreid. p. 6. G. N. 

 Americana, M. & H. (Goniomya), 1856, Proc. Acad. 283. 



Neb. C. 

 ($. Gen. A.) anteradiata, Con. Jour. Acad. vol. iv, 276, 46, 



3. Miss. C. 



Archiaciana, d'Orb: P. F. 356, 364, 3-4. Fr. C. 



*Austinensis, Shum. Sp. (Pachymya), Gabb, 1861. Texas. C. 



biplicata, Gein. Char. Kreid. 21, 17, 75. G. U. G. 



borealis, Meek, 1857, Trans. Alb. Inst. p. 41. Vancouver I. C. 

 Caranfoniana, d'Orb. (Esmarckii), P. F. 357, 365, 1-2. 



caudata, Agas. Sp. (Goniomya), d'Orb. Prod. 74. G. N. 

 caudata, Roem. (aequivalvis), Nord. Kreid. pi. 10, f. 8. 



connectans, Forbes, G. T. vol. vii, 140, 17, 5. India. C. 

 cordiformis, Desh. Leym. M. G. S. F. 1842, 3, 3, 3. Fr. U. G. 

 Cornueliana, d'Orb. (PAPYRIDEA), Prod. 105. 



designata, Goldf. Sp. (Lysianassa), Reuss, B. K. p. 18. G. C. 

 designata, Gein. (Geinitzii), d'Orb. Prod. 194. 



Duteinpleana, d'Orb. Prod. 155. Fr. G. 

 elegantula, E. & S. 1855, Proc. Acad. p. 164 (not P. (Cardium) 



elegantula, Roem.), Vancouver I. C. 



elliptica, Ring, in Goldf. 273, 158, 1. G., Fr., Port. C. 



elongata, Munst. Goldf. P. G. 270, 157, 3-6. E., Fr., G. N. 



* This species can hardly be the same as P. gigas, Sow. Sp., as Dr. Shumard 

 thinks probable, since, besides the slight but constant difference in form, P. 

 gigas is peculiar to the upper green sand, while the American species belong to 

 the chalk. 



