OENU3 ATRYPA. S W 6 r b 



2621 concentrica, Conrad, 



2622 prisca, 



Canandaigua, N. Y., 



Ludlow shale, fossil, 

 fossil. 



GENUS LEPT^ENA. D aim a n , 



2623 alternata, 



Ohio, 



fossil. 



GENUS THECIDIUM. D efr (11106 . 



2624 curvirostris, 



2625 Mediterranea, Def., 347 Mediterranean, Sowb. Gen., f. 6, 7. 



2626 " var., Risso.pr.M.deNice,t.4,f.l83. 



2627 radiata, Def., 



2628 antiqua, 



2629 Parisiensis, 



2630 personata, 



2631 ringens, 



2632 striata, 



GENUS CRANIA. Retz, Bruguidre. 



Def., 



Def, Belgium, 



Lam., 298 Mediterranean, 



Hoening, 302 Mediterranean, 



Def., Belgium, 



Chenu C. 111., pi. 1, f. 6. fossil. 



Chenu C. 111., pi. 1, f. 9. fossil. 



Chemn. 8, pi. 76, f. 687. 



Poli, v. 2, p. 189, pi. 30. 



Chenu C. 111., pi. 2, f. 1. fossil. 



GENUS ORBICULA. L a m a r c k . 



2633 lamellosa, Brod., 



Iquiqui, 



Ts. Zool. Soc., v. 1, pi. 28, f. 2-5. 



GENUS HIPPONYX. Defrance. 



2634 acuta, 



2635 australis, 



2636 barbata, 



2637 cornucopiae, 



2638 mitrula, 



2639 " var., 

 2640 



2641 radiata, 



Quoy, 615 New Holland, 

 Lam., 541 New Holland, 

 Sowb., Society Isles, 



Def, 614 Grignon, 

 Gmel., 610 Lobos Island, 

 Peru, 



Gray, 



Gallapagos, 



Voy. Astrol., pi. 72, f. 35, 36. 



Voy. Astrol., pi. 72, f. 25-34. Patella australis, Lam. 



Sowb. Thes., p. 369, pi. 73, f. 26. 



Blain. Mai., pi. 50, f. 1. 



Zool. Proc., 1835, p. 5. Pileopsis mitrala, Lam. 



Sowb. Thes., pi. 73, f. 18-20. Patella antiquata, Linn. 



Blain. Mai., pi. 50, f. 4. Patella mitrula, Gmel. 



Zool. Proc., 1835, p. 5. 



