336 DESCRIPTION OF A COLLECTION OF FOSSILS. 



Neilo ornata, Sby. (sp.)- 



Nucula id., Sby., Darwin's S. A., p. 251 , PI. 2, f. 19. Tert. ; Pat. 



Pecten actinodes, Sby., id., p. 253, PL 3, f. 33. . Tert. ; Pat. 



P. CENTRALIS, Sby., id., p. 253, PI. 3, f, 31. Tert. ; Pat. 



P. GEMiNATUS, Sby., id., p. 252, PI. 2, f. 24. Tert. ; Pat. 



P. Paranensis, d'Orb., A. Mer., p. 132, PL 7, f. 5-9. 



Id. Sby,, Darwin's S. A., p. 253, PL 3, f. 30. 



Very closely allied to P. Madisonius of the North American Miocene, but differs in having 

 a few more ribs, although the details of their ornaments are the same. Mr. Conrad, whose expe- 

 rience with these fossils extends over nearly half a century, and therefore must be treated with 

 great deference, assures me that the North American fossils differ more among themselves, than 

 does the South American form from the typical Sfadisonius, and that he would not hesitate 



in uniting them. 



P. Patagonensis, d'Orb., A. Mer., p. 131, PL 1, f. 1-4. Tert. ; Pat. 



P. PROPiNQUUS, Hup., Gay's Chile, p. 291, PL 5, f. 2. Tert. ; Chile. 



P. PTJBPURATUS, Lara., A. S. Y., v. 7, p. 134. 



Id. Gabb, J. Conch., 1869, p. 32. ^ Tert. ; Peru. 



P. RTJDis, Sby., Darwin's S. A., p. 254, PL 3, f. 32. Tert. ; Chile. 



P. TENtficosTATUS, Hup., Gay, p. 291, PL 5, f. 4. • > ■ 



P. {Pteuronectia) Darwinianus, d'Orb. 

 Pecten Darwinianus, d'Orb., A. Mer., p. 133. 



M. Sby., Darwin's S. A., p. 253, PL 3, f. 28-39. Tert. ; Pat. ; A. Rep. 



Anomia alternans, Sby., id., p. 252, PL 2, f. 25. ® ^ ' 



OSTREA ALYAREZii, d'Orb., A. Mer., p. 134, PL Y, f. 19. Tert. ; Arg. Rep. 



O CoPiAPiNA, Con., U. S. Naval Astron. Exped., p. 285. ^ert. ; Chile. 



0. Ferrakisi, d'Orb., A. Mer., p. 134, PL Y, f. H-IS. Tert. ; Pat. 

 O. GALLXJS, VaL, Voy. Venus, PL 21, f. 1. 



0. Cerrosensis, Gabb, Pat. Col., v. 2, p. 35, PL 11, f. 61. ^ ^^^_^^ 



O. gallus, Gabb, J. Conch., 1869, p. 32. ' ^^^ [ ^'^^• 



O. MAXIMA, Hup., Gay, p. 282, PL 4, f. 1. ^ -o . a' ' i^ * 



PATAGONiCA, d'Orb., A. Mer., p. 133, PL 7, f. 14-16. Tert. ; Pat. ; Arg. Rep. 



^ . Tir IPO Quart.; Arg. Rep. 



O.PuEi.cHANA,d'Orb.,A.Mer.,p.l62. • "^ Tert -Chile 



0. ROSTRATA, Hup., Gay's Chile, p. 283 ^^^'^ ' ^^.^J^ 



O. TRANSITOBIA, Hup., Gay's Chde, p. 283, PL 4, f. 3. 



BRACHIOPODA. 

 Terebratula FoNTAiNEi, d'Orb., A. Mer. 

 T. Ghilensis, d'Orb., Foss. A. Mer., p. 163. 



Not T. id., Brod. ^^^^^ . ^j^.^^ 



T. Fontainei, Hup., Gay's Chile, p. 400. ^ ' ' _ 



T. PATAGomcA, Sby., Darwin's S. A., p. 252, PL 2, f. 26-27. 



RADIATA. 



ECHINODERMATA. 



ECHINUS PATAOO.ENSXS, d'Orb., A. Mer., p. 135, PL 6, f. 14-16. Tert. ; Pat., Arg. Rep. 



