138G.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 253 



Corbicula umbonella (Meek) White. 



Rev. Nou-Mariue Foss. Moll., p. 32 or 438, pi. xxi, figs. 7-10. Mus. No. 12468. 



Corbula subtrigonalis (M. «fe H.) Meek. 



Rep. U. S. Geol. aud Geogr. Siirv. Terr., 4to, vol. ix, pp. 529-530, pi. xl, figs. 3a-6 

 aud Rev. Nou-Marine Foss. Moll. p. 36, pi. xix, fig. 10. Mus. No. 2183. 

 Goniobasis macilenta White. 



12th Auu. Rep. U. S. Geol. and Geogr. Surv. Terr., p. 93, pi. xxx, fig. 10a, and 

 Rev. Non-Mariue Foss. Moll., p. 56, pi. vi, fig. 12. Mus. No. 1916. 



Goniobasis ? subtortuosa (M. & H.) Meek. 



Rep. U. S. Geol. and Geogr. Surv. Terr., 4to, vol. ix, p. 569, pi. xlii, figs. 17a, 

 b, and figs. 75 and 76, p. 569. Rev. Non-Marine Foss. Moll., p. 57 or 463, 

 pi. xxvii, fig. 34. Mas. No. 19180. 

 Melania -wyomingensis (Meek) White. 



12th Ann. Rep. U. 8. Geol. and Geogr. Surv. Terr., p. 95, pi. xxviii, figs. 6a, b. 

 Rev. Nou-Marine Foss. Moll., p. 54 or 460, pi. xxvi, figs. 1, 2. Mus. No. 

 9018. 

 Ostrea glabra (M. & H.) White. 



Rev. Foss. Ostreidif N. A., p. 307, pi. Ixi, figs. 2 and 3. Mus. No. 11889. 

 Physa kanabensis White. 



Rep. Geol. Eastern Uinta Mts., J. W. Powell, p. 119 (not figured). Mus. No. 

 8890. 

 Unio priscus (M. & H.) Meek. 



Rep. U. S. Geol. and Geogr. Surv. Terr., 4, vol. ix, p. 516, pi. xliii, figs. 8a, b, 

 and d. Rev. Non-Marine Foss. Moll., p. 26 or 432, pi. xiv, fig. 1. Mus. 

 Nos. 2162 and 2180.* 

 Unio vetustus (Meek) White. 



Rev. Non-Marine Foss. Moll., p. 24 or 430, pi. vii, figs. 2-4. Mus. No 8147. 



EOCENE SPECIES. 



Anodonta decurtata Conrad. 



Amer. Jour. Conch., vol. vi, p. 200, pi. xi, fig. 8, and Rev. Non-Marine Foss. 

 Moll., p. 73, pi. xxix, figs. 27 aud 28. Mus. No. 13574. 

 Cardita planicosta (Lamarck) White. 



Bull. U. S. Geol. Surv. No. 18, pp. 7-9, pi. i, figs. 1-3. Mus. No. 13405. 

 Liiunaea (Leptolimnaea) minuscula White. 



Proc. U. S. Nat. Mus., vol. iii, p. 160, and Rev. Non-Marine Foss. Moll., p. 40, pi. 

 xxix, figs. 24 and 25. Mus. No. 8907. 

 Ostrea compressirostra (Say) Heilprin. 



Rev. Foss. Ostreidie N. A., p. 309, pi. Ixv, figs. 1 and 2. Mus. No. 18.597. 

 Ostiea sellaeformis (Conrad) Heilprin. 



Rev. Foss. Ostreidie N. A., p. 311, pi. ixii, figs. 1 and 2, and pi. ixiii, fig. 1. Mus. 

 No. 18598. 

 Ostrea thirsae (Gabb) Heilprin. 



Rev. Foss. O.streidiB N. A., p. 311, pi. Ixiii, figs. 4-6. Mus. No. 570. 

 Ostrea vicksburgensis (Conrad) Heilprin. 



Rev. Foss. Ostreidie in. A., p. 312, pi. Ixiii, figs. 2 and 3. Mus. No. 6182. 

 Physa pleromatis White. 



Rep. Geogr. &, Geol. Surv. west 100th meridian, vol. iv, part i, p. 211, pi. xxi, 

 figs, la, b. Rev. Non-Marine Foss. Moll., p. 44, or 4.50, pi. xxx, figs. 6, 7, and 8. 

 Mus. Nos. 8867 and 8876. 



• Mus. No. 2180 are the specimena from which the composite figures 8a, i are made up. 



