OP CONCHOLOGY. 153 



CYPEINID^. 



CYPRINA, Lam. 



C. BiSECTA {Venus.)—'?. 724:, pi. 17, fig. 10; pi. 18, fig. 1? 

 CARDIID^. 



CARDIUM, Lin. 



C. SUBTENTUM {CartUta,) Con.— p. 726, pi. 18, fig. 12. 

 LUCINIDiE. 



CYCLAS, Klein. 



C. ACUTILINEATA {Luciiia,) Con. — p. 723, pi. 18, fig. 2. 



Pectunculus patulus? Con. — P. 726, pi. 18, fig. 8. 

 C. FIBROSA {Lucina,) Shumard. — Trans. St. Louis Acad., vol. 

 i., p. 120. 



SOLEMYADiE. 



SOLEMYA, Lam. 



S. VEXTRicosA, Con— P. 723, pi. 17, figs. 7, 8. 

 UNGULINID^E. 



MYSIA, Leach. 



M. PARiLis {Loripes,) Con. — Anier. Jour. Science, 1848, p. 433, 

 fig. 7. 



ARCID.E. 



ANOMALOCARDIA, Klein. 



A.? DEVINCTA {Area,) Con.— p. 726, pi. 18, fig. 10. 

 AXINiEID^. 



LIMOPSIS, Sassi. 



L. NiTENS {Pectunculus) Con. — P. 726, pi. 18, fig. 9. 

 L. ? Oregoxensis, Con. — PI. 18, fig. 11. 



NUCULIDtE. 



NUCULA, Lam. 

 Subgenus ACILA, Adams. 



N. Coxradi, Meek, {N. divaricata, Con.)— P. 723, pi. 18, fig. 6. 



LEDID^E. 



NEILO, Adams. 



N. ABRUPTA {Nucula,) Con. — Amer. Jour. Science, 1848, p. 



423, fig. 3. 

 N. Oregona, {Leda,) Shumard. — Trans. St. Louis Acad., i., 



p. 12i. 

 N. penita {Nucula,) Con. — Amer. Jour. Science, 1848, p. 433, 



fig. 10. 

 N. Willamettexsis {Leda.,) Sliumard. — Trans. St. Louis 



Acad., i., p. 121. 



