88 TRANSACTIONS OF THE WAGNER FREE 



of S. podagrina, and young ones graduate almost imperceptibly into S. pyrii- 

 loides, which in general is more ovate, smaller and much thinner and lighter 

 than S. subangtdata. 



C. podagrina belongs to the Bell's and Gregg's Landing beds, or Upper 

 Lignitic, instead of the Jackson beds, with which C. snbangtdata is associated. 



C. Heilprini is much more elevated and, if correctly figured, has the plaits 

 crowded together and more or less connected by callus. This feature I sus- 

 pect to be due to the draughtsman, as it would be unique in the group. It 

 would be a very much thinner shell than C. podagrina or C. subangjdata and 

 more sharply fusiform before and behind. I may add that the Vohita Bandoni 

 of Deshayes, to which this species was referred in 1880 by Prof Heilprin, is 

 not likely to be a Caricella or nearly related to the present species. 



C. pyridoides Qo'i\x2A,oi \N\\\z\i C. polita Conrad is an elongated variety, 

 is the nearest relative of C. subangidata, from which it is distinguished by its 

 thinner and generally smaller shell, more oval form, narrower aperture, more 

 widely separated and delicate plaits, straighter and more pointed canal. In 

 brief, C. pyrjdoidcs is more delicate, elongated and less top-shaped. 



Scaphella Trenholmii Tuomey & Holmes. 

 Plate 6, figure 10. 

 Valuta Trenholmii T . & H., Plioc. Foss. S. Car., p. 128, pi. 27, figs. 7, 8, 1856. 



Miocene of Maryland, South Carolina and Florida; in the Upper bed at 

 Alum Bluff on the Chattahoochee River, West Florida. 



The fragment here figured was at first supposed to be new, but the discov- 

 ery of more material and a comparison with specimens in other collections 

 and at Philadelphia enable me to determine its proper place. This species is 

 undoubtedly Miocene in South Carolina, being one of those Miocene species 

 confounded with the Pliocene fauna in the magnificent work of Tuomey & 

 Holmes. The specimen figured is quite immature. 



Scaphella ( Aurinia ?) striata Gabb. 

 Scapha striata Gabb, Geol. San. Dom., p. 219, 1873. 



Miocene of Santo Domingo. Type in the collection of the Academy of 

 Natural Sciences, Philadelphia. 



This is a good species of the Aurinia group in everything except the 

 plaits, which appear to continue strong instead of fading away as in Aurinia. 

 There are only two, as in Aurinia, and this species by its characters adds one 

 more link to the connection between the Miocene of Santo Domingo and the 

 United States, very similar forms — 5. {Aurinia ?) typus and virginiana Conrad — 

 occurring in our Atlantic Miocene. The types of striata are not full-grown, 

 and may present the characteristics of Aurinia when adult. 



