1865.] PKOCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 341 



MIOCENE SPECIES— Continued. 

 Mactra ? gaviotensis Conrad. 



Kep. Expls. & Survs. R. R. R, Mississippi River to the Pacific Ocean, vol. vii, p. 194, 

 pl.vii,fig.4. Mu8. No. 13310. 

 Modiola contracta Conrad. 



Rep. Expls. & Survs. R. R. R. Mississippi River to the Pacific Ocean, vol. v, p. 325, 

 pi. V, fig, 35. Mus. No. 1853. 

 Mya abrupta Conrad. 



U. S. Espl. Exp., vol. X, Geology, p. 723, pi. xvii, figs. 5, a. Mus, No. 3608. 

 Mytilus inezensis Conrad. 



Rep. Expls. & Survs. R. R. R. Mississippi River to the Pacific Ocean, vol. vii, p. 194, 

 pl.viii,fig8.2,3? Mus. No. 13319. 

 Natica inezana Conrad. 



Rep. Expls. & Survs. R. R. R. Mississippi River to the Pacific Ocean, vol. vii, p. 

 195, pi. X, figs. 5, 6. Mus. No. 12359. 

 Natica inezana Conrad. 



Rep. Expls. & Survs. R. R. R. Mississippi River to Pacific Ocean, vol, vii, p. 195, 

 pi. X, figs. 5, 6. Mus. No. 12359, 



Nautilus angustatus Conrad. 



U. S. Expl. Exp., vol. X, Geology, p. 728, pi, xx, fig. 5. Mus. No. 3610. 

 Nucula impressa Conrad. 



U. S. Expl. Exp., vol. X, Geology, p. 726, pi. xviii, figs. 7c-«. Mus. Nos. 3490, 3491. 

 Ostrea contracta Conrad. 



U. S, & Mex. Bound. Surv., vol. i, part ii, p, 160, pi. xviii, figs. a-d. Mus. No. 9904. 

 Ostrea panzana Conrad. 



Rep. Expls. & Survs. R. R, R. Mississippi River to the Pacific Ocean, vol. vii, p, 193, 

 pi. ii, fig. 4. Mus. No. 13313. 

 Ostrea subjecta Conrad. 



Rep. Expls. & Survs. R. R. R. Mississippi River to Pacific Ocean, vol. vii, p. 193, pi. 

 ii, fig. 3. Mus. No. 13338. 

 Ostrea vespertiiaa Conrad. 



U. S. & Mex. Bound. Surv., vol. i, part ii, p. 160, pi. xvii, figs. la-d. Rev. Foss. Os- 

 treida N. A, , p, 315, pi. Ixxi, figs. 2-5. Mus, No, 9832. 

 Pachydesma inezana Conrad. 



Rep. Expls. & Survs. R. R. R. Mississippi River to the Pacific Ocean, vol. vii, p. 193, 

 pi. V, figs, 2, 4. Mus, No, 13315. 

 Pallium estrellanum Conrad. 



Rep, Expls. & Survs. R, R. R, Mississippi River to the Pacific Ocean, vol. vii, p. 191, 

 (not the figured specimens). Mus. No. 13317. 

 Pecten discus Conrad. 



Rep. Expls. & Survs, R, R. R. Mississippi River to the Pacific Ocean, vol, vii, p. 

 190, pi. iii, fig, 1, Mus, No. 13335, 

 Pecten hermanii Conrad, 



Proc, Acad, Nat, Sci, Philad. , vol, vii, p, 267, Mus. No. 13309. 

 Pecten magnolia Conrad. 



Rep. Expls. & Survs. R. R. R. Mississippi River to the Pacific Ocean, vol. vii, p. 

 191 (not the figured specimen). Mus, No, 13311. 

 Pecten meekii Conrad. 



Rep. Expls. & Siirvs. R. R. R. Mississippi River to the Pacific Ocean, vol, vii, p, 

 190, pi. i, fig. 1. Mus. No, 13333, 



Pecten propatulus Conrad. 



U, S. Expl, Exp., vol. X, Geology, p. 726, pi. xviii, figs. 13, a. Mus, No. 3504. 



