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829 



TERTIARY FAUNA OF FLORIDA 



Panopea "Whitfieldi Dall. 

 Panopca Goldfiissii Whitfield, Mio. Marls N. J., p. 89, pi. 16, figs. 9-13, 1895 ; not of 

 Wagner, 1838. 



Oligocene of the silex beds at Ballast Point, Tampa Bay ; of the Chipola 

 River and Oak Grove, Santa Rosa County, Florida, Burns ; and mixed with 

 Miocene species in the rehandled marl of Jericho, Cumberland County, New 

 Jersey, Burns. 



This species differs from the typical Miocene P. Goldfiissii Wagner in 

 its smaller size, more equilateral valves, and less expanded anterior region. 



Panopea Goldfussii Wagner. 

 P. Goldfussii Wagner, Journ. Acad. Nat. Sci. Phila,, \iii., p. 52, pi. i, fig. 3, 1838; 



Trans. Wagner Inst., \'., p. 8, 1897. 

 P. por?-ccta Conrad, Fos. Medial Tert., p. 71, pi. 41, fig. 2, 1842. 



Miocene of Maryland at Jones's Wharf, Plum Point, Langley's Bluff, St. 

 Mary's, Calvert Cliffs, and on the Choptank River; of Virginia at Suffolk and 

 on the NanseiTiond River, Nomini Cliffs, and Grove Wharf, Burns and Harris ; 

 and in the upper bed at Alum Bluff, Chattahoochee River, Florida, Burns. 



This species, though varying like the others, may almost always be 

 distinguished by its expanded anterior end, and elongated and attenuated 

 posterior part. It is very close to the European P. Rudolphii Eichwald, P. 

 Basteroti Valenciennes, and P. Mcnai-di Deshayes, which, from the figures, 

 appear to be pretty much one and the same species. The last two are united 

 by Deshayes himself in manuscripts in my possession, Deshayes's name being 

 the prior one. 



P. porrecta Conrad is identical with this species. 



Panopea reflexa Say. 

 P. rcflcxa Say, Journ. Acad. Nat. Sci., iv., p. 153, pi. 13, fig. 4, 1824; Conrad., Med. 



Tert., p. 5, pi. 3, fig. 4, 1838. 

 P. Faiijasi Coi\ra.A., in Morton, Syn. Org. Rem., p. 3, 1834; not of Menard. 

 P. cymbiila Heilprin, Trans. Wagner Inst., i., p. 91, pi. 9, fig. 20, 1887. 

 P. reflexa Emmons, Geol. Rep. N. Car., p. 300, fig. 299, 1858. 



Miocene of Gay Head, Martha's Vineyard, Massachusetts ; of Grove 

 Wharf and Suffolk, Peter.sburg, and York River, Virginia; of Wilmington, 

 Magnolia, and the Duplin County Natural Well, North Carolina ; of the 

 Peedee River and Darlington, South Carolina. 



