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1537 



TERTIARY FAUNA OF FLORIDA 



Genus TEREBRATULA (LPwyd). 



Terebratula wilmingtonensis Lyell and Sowerby. 



PLATE 58, FIGURES 14-20. 



f Terebratula canipes Ravenel, Proc. Acad. Nat. Sci. Phila., ii., p. 97, 1844; Conrad, Am. 



Journ. Conch., i., p. 15, 1865. 

 Terebratula wilmingtoncnsis Lyell and Sowerby, Quart. Journ. Geol. Soc. Lond., i., p. 



431, fig. 6, 1845 ; Conrad, Checkl. Eoc. Fos. N. Am., p. 33, 1866. 

 Rhynconella wilmingtonensis Conrad, Am. Journ. Conch., i., p. 35, 1865. 

 Terebratula demissirostra Conrad, Kerr's Geol. Rep. N. Car., App. A, p. 18, pi. iii., fig. i, 



1875- 



Eocene limestone of Wilmington, North Carolina, and vicinity (abun- 

 dantly) ; Lyell, Burns, and Vaughan. 



The T. canipes Ravenel was insufficiently described from a single ventral 

 valve from the Eocene limestone of South Carolina, and was never figured, 

 but so far as its characters are stated they agree well enough with those of 

 this species when full-grown and well plicated. I have little doubt they are 

 identical, yet under the circumstances the name can hardly claim recognition. 



This species when young is smooth ; sometimes it reaches a good size with- 

 out marked plication, yet it almost always shows a little. Many specimens 

 have six or seven strong plications covering more than half of the disk. 



Terebratula trinitatensis Guppy. 

 Terebratula carneoides Guppy. 



Terebratula lecta Guppy. 

 Guppy, Quart. Journ. Geol. Soc. Lond., vol. xxii., p. 296, pi. xix., figs, i, 2, 3, 1866. 



The three species above cited are described by Mr. Guppy as obtained from 

 " the gypseous marls containing Orbitoides Mantelli and Nummulina exposed 

 near the town of San Fernando in Trinidad." The " great development of 

 Orbitoides Mantelli" fed Mr. Guppy to regard this horizon as lower than the 

 Bowden beds of Jamaica, in which he is doubtless correct. These foraminifera 

 in Florida are rather characteristic of the Vicksburgian, and it is entirely likely 

 that the San Fernando beds may be in an analogous position in the geological 

 column. The types of the species are in the United States National Museum. 

 T. lecta has some resemblance to the broader forms of T. wilmingtonensis, but 

 on the whole the three species appear to differ from any of the North American 

 Tertiary or recent faunas. The interior is occupied by a hard matrix, so the 

 loops cannot be examined, but either of them might well be a Liothyrina. 



Barrett reports a Terebratula, a Terebratulina, and an Argyrotheca from 



