FREE INSTITUTE OF SCIENCE 



659 

 TERTIARY FAUNA OF FLORIDA 



Area lima/iila Einmons, 1858, Geol. N. Car., is a typographical error for 

 A. linnila Conrad. A. lintca Conrad (in App. Kerr's Geol. N. Car., 1875) is 

 not A. lintca Conrad, 1852 (Rep. Dead Sea Expedition under Lieut. Lynch). 



Pliocene and later. A. Deshaycsii Hanley is reported by Gabb from the 

 Pliocene of Costa Rica. Nelson has described and figured an A. Larkini from 

 the Pliocene (?) of Peru. Gabb describes and figures A. sulcicosta from the 

 Pliocene of California (1866), but the name had previously been used by Nyst 

 in 1836 for a Belgian fossil, and Gabb's species may take the specific name of 

 seliizotoma. Area vclata Sowerby (Indopacific) is reported by Gabb from the 

 Pleistocene of St. Domingo, but his shell is probably a distorted specimen of 

 Area Candida or llelblingi. 



The following is a list of the recent species of Area belonging to the 

 southern coast of the United States, and any of which might be expected to 

 occur in our later Tertiary or Pleistocene beds : 



Area oeeidiiitalis Phil., A. umbonata Lam.; Barbatia barbata Linne, B. 

 (Calloarca) Candida Gmel., B. (C.) nodulosa Mull., B. (Aear) rcticidata Gmel., 

 luirbatia (Fossularcd) Adauisi (Shuttlew.) Smith; B. (Citcullarid) aspcrnla 

 Dall, B. (Cucitllaria) sagrinata Dall, />. (Cucullaria) profnndicola Verrill ; Noetia 

 ponderosa Say, Noetia bisulcata Lam. ; Scapharca sccticostata Rve., S. trans- 

 I'crsa Say, 5. Desliaycsii Ilanley, S. anricitlala Lam., 5. (C/t/iearca) incoiigriia 

 Say, S. (Cnncarca) Clieiniiitzii Phil., S. (Argimf) eauipec/ieiisis Dillwyn with 

 varieties pcxata Say and americana Gray, S. (Kathyarea] pcclnncidoides 

 Scacchi, 5. (Batliyarca) polycyina Dall, S. (Bathyarca) glomemla Dall. 



Superfamily PTERIACEA. 

 FAMILY PINNID^E. 



The ancient genus Pinna of Linnaeus, as represented in our Tertiaries, is 

 divided into two genera: 



1. Pinna proper; with the fibrous layer of the valves mesially sulcate longi- 



tudinally while the inner nacreous layer is bilobed deeply by the same 

 (closed) sulci. The type of the genus is P. nidis L., the red Pinna of 

 the West Indies. P. flabellinn Lam. and if. carnea Gmelin belong to it. 



2. Atritia Gray; has the valves unsulcate or without the median carina, and 



the internal nacreous layer is entire. The type is P. nigra Ch., and it is 

 represented in our recent fauna by P. rigida Dillwyn (P. tintricata auct.) 

 and /'. scrrata Sby. 



7 



