Conchifera. 227 Solen. 



elegans, d'Orb. (Solecurtus radians), P. F. 322, 251, 3-5. 

 elegans, Math. (Solecurtus), Cat. 134, 11, 3. 

 Guerangeri, d'Orb. (Solecurtus), P. F. 321, 351, 1-2. 

 injiexus, Dujard. (SoLECURTUS), M. Gr. S. F. 2d s. vol. ii, 222, 



15,4. 

 lamellosus, Reuss (Arcopagia), B. Kreid. 16, 36, 5. 

 irradians, E.oem. Kreid. Tex. 45, 6, 9. Texas. C. 



Rohinaldinus, d'Orb. (Solecurtus), P. F. 320, 350, 1-2. 

 suhpUcataj M. & H. (Solemya), 1856, Proc. Acad. p. 56. 



Sphaera, Sow. 1822 (COEBIS, Cuv. 1817). 



corrugata, Sow. (CoRBis), M. Con. 334. 



SPHAERELLA, Con. 1838. 



concentrica. Con. Jour. Acad. 2d s. vol. iv, 280, 46, 4. Ala. C. 



SPONDYLUS, Linn. 1758. 



alternatus, d'Orb. P. F. 665, 456, 1-5. Fr. C. 



Aonis, d'Orb. Prod. 294. Fr. Danien. 



asper, Miinst. Goldf. P. G. pi. 106, f. 1. G. C. 



Brunneri, P. & R. Env. Genev. 514, 47, 1. Fr. G. 



calcaratus, Forbes, G. T. 2d s. vol. vii, 155, 18, -2. India. C. 



capax, Con. Jour. Acad. 2d s. vol. ii, 274, 24, 8. N. J. C. 



capillatusy d'Arc. (striatus), M. G. S. F. 2d s. vol. ii, pi. 17, f. 1. 

 Carautonensis, d'Orb. P. F. 665, 456, 6-7. Fr. G. 



complanatus, d'Orb. P. F. 657, 451, 7-10. Fr. L. G. 



Coquandianus, d'Orb. P. F. 663, 452, 9-11. Fr. G. 



dumosus, Morton, Sp. pars* (Plagiostoma), d'Orb. Prod. 254. 



Ala. Eocene. 



(htpUcatus, Goldf. (spinosus), P. Germ. 95, 105, 5. 

 Dutempleanus, d'Orb. P. F. 672, 460, 6-11 . Fr. G. 



fimbriatus, Goldf. P. G. 97, 106, 2. E., G., Fr. G. 



gibbosus, d'Orb. P. F. 658, 452, 1-6. Fr. G. 



globulosus, d'Orb. P. F. 667, 458. Fr. G. 



gregalis, Morton, Sp. (Plagiostoma), d'Orb. Prod. 254. N. J. G. 

 Guadalupae, Roem. Kreid. Tex. 62, 8, 9. Tex. G. 



* The specimen figured in the wood-cut, Synopsis, p. 60, is distinct from the 

 lithograph. I would suggest the name S. Mortoni for it. Both the species are 

 Eocene ; the types are in the Museum of the Academy of Natural Sciences. 



