252 MESOZOIC AND CENOZOIC INVERTEBRATES. 



Margaritana nebrascensis Meek. 



Cret. No. 1-, Rep. U. S. Geol. and Geogr. Surv. Terr., 4, vol. ix, pp. 114, 115, pi. 

 i, figs. 5a-c, and Rev. Non-Marine Foss. Moll., p, 21, pi. iv, figs. 1 and 2. 

 Mas. No. 7719. 



Nerita ? White. 



Bull. U. S. Geol. Surv., No. 22, p. 12, pi. v, figs. 7, 8. Mus. No, 13411. 



Ostrea (Alectryonia) Blackii White. 



Proc. U. S. Nat. Mus., vol. ii, p. 293 (not figured specimen), 12th Ann. Rep, 

 II. S. Geol. and Geogr. Surv. Terr., p. 11, pi. svii, fig. 5, and Rev. Foss. Os- 

 treidae N. A., p. 292 (not the figured specimen). Mus. No. 8024. 

 Ostrea (Alectryonia) larva (Lamarck) White. 



Rev. Foss. OstreidiB N. A., p. 296. pi. xlii, figs. 2-9. Mus. No. 2401. 



Ostrea carinata (Lamarck) White. 



Rev. Foss. Ostreidaj N. A., p. 293, pi. xliii, figs. 2-4. Mus. No. 18616. 



Ostrea diluviana (Linnaeus) White. 



Rev. Foss. Ostreidae N. A., p. 29.'}, pi. xl, fig. 1, and i)l. xli, figs. 1 and 2. Mus. 

 No. 8300. 

 Ostrea elegantula Newberry. 



Rep. Expl. Exp. in 1859, by Capt. J. N. Macomb, p. 33, and Rev. Foss. Ostrei- 

 diTB N. A., p. 295, pi. xxxvi, figs, ,V7. Mus. No. 18611. 

 Ostrea plumosa (Morton) White. 



Rev. Foss. Ostreidae N. A., p. 299, pi. xxxvii, figs. 5, 6. Mus. No. 18602. 



Ostrea testicostata (Gabb) White. 



Rev. Foss. OstreidaL' N. A., p. 301, pi. 1, figs. 3 and 4. Mus. No. 18613. 

 Ostrea vomer (Morton) White. 



Rev. Foss. Ostreidae. N. A., p. 302, pi. xlviii, figs. 8-10. Mus. No. 2414. 

 Pachymya austinensis (Shumard) White. 



11th Ann. Rep. U. S. Geol. and Geogr. Surv. Terr., p. 298, pi. viii, fig. 16. 

 Mus. No. 8043. 



Pteria (Oxytoma) erecta White. 



Proc. U. S. Nat. Miis., vol. iii, pp. 157-158, and vol. iv, p. 139, pi. — , figs. 7 and 

 8. Mus. No. 8771. 

 Solarium vrallalense White. 



Bull. U. S. Geol. Surv., No. 22, p. 14, pi. v, figs, 1 and 2. Mus. No. 13412. 



Solemia bilex White. 



Proc. U. S. Nat. Mus., vol. iii, p. 158, and vol iv, p. 139, pi. — , fig. 9. Mus. No. 

 8913. 

 Tancredia americana (M. &. H.) Meek. 



Cret. No. 5, Rep, U. S. Geol, and Geogr. Surv. Terr., 4to, vol. ix,p. 142, pi. 

 xxxviii, figs. Ib-e. Mus. Nos. 186 and 2017. 



Trochus (Oxystele) euryostomus White. 



Bull. U. F>. Geol. Surv., No. 22, p. 12, pi. v., figs. 9-11. Mus. No. 13410. 



Unio ? Meek. 



6th Ann. Rep, U. S. Geol. and Geogr. Surv. Terr., pp. 444 and 476 (not figured 

 nor described, but mentioned). Mus. No. 7868. 



LARAMIE SPECIES. 



Anomia gryphorhyncus (Meek) White. 



Rev, Non-Marine Foss. Moll., p. 16 or 422, pi. xii, fig. 15. Mus. No. 9050. 

 Bulinus ? rhomboideus (M. & H.) Meek, 



Rep. U. S. Geol. and Geogr. Surv. Terr., 4to, vol. ix, p. 542, pi. xliii, fig. 17 ; Rev. 

 Nou-Mariue Foss. Moll., p. 45 or 451, pi. xxv, fig. 9. Mus. No. 19181. 



