lO BULLETIX 33 lO 



the whorl ; the remaining ])ortion of the whorls smooth excei)t 

 for fine lines of growth ; near the suture, on the uppermost por- 

 tion of the preceding whorl a heav)', reveling line or groove ex- 

 tends which gives the surface an appressed-ridged appearance. 

 On the bod}' whorl, the fine, revoling lines of the lower portion 

 extend continuously over the margin and probabl}' over most of 

 the surface of the base. 



Types and specimens figured. — Paleontological Museum, Cor- 

 nell Univ. 



Hoiizon. — St. Maurice Eocene. 



Locality. — Newcastle, Va. Collected b}' the ist lanthina 

 Expedition '97. 



GEOGRAPHICAL DLSTRIBUTION OF MID- EOCENE FAUNA OF 

 THE VIRGINIA BASIN 



PELECYPODA 



Anapteris regalis, n. sp., Piping Tree. 



Anomia lisbotiensis Aldrich, Coggins Point. 



Anoinia marylandica C. & M., Port Ro3-al. 



Corbula alabaniietisis Lea, Port Royal, Ratcliff, Piping Tree, Newcastle. 



Corbula aldrichi Meyer, Popes Creek, Port Royal, RatcliflF, Piping Tree. 



Corbula murchisoni Lea, Newcastle, Popes Creek 



Crassafellifes alcsformis (QonTadi), Potomac Creek, Piping Tree, below City 



Point, Coggins Point. 

 Cucullcea onochela Rogers, Potomac Creek, Newcastle. 

 Cucullcea transversa Rogers, Potomac Creek. 

 Dosiniopsis lenticularis Rogers, Potomac Creek. 

 Glycymeris idoneus (Conrad) ? Newcastle, Coggins Point. 

 Glycyineris, sp.. Port Royal. 

 Lcevicardinm, sp., Coggins Point. 

 Leda magna Lea ? Coggins Point. 



Leda iviprocera (Conrad), Port Royal, Marshfield, Woodstock 

 Leda cultellifoi'inis (Rogers), Popes Creek, Woodstock. 

 Leda ccelatella, n. sp.. Port Royal. 

 Leda, sp., Coggins Point. 

 Lucina alveata Conrad, Piping Tree. 

 Lucina dartoni Clark, Popes Creek. 

 Lticina papyracea {Yi^a.) , Newcastle. 

 Lucina nhleri Clark, Port Royal, Ratcliff. 

 Lucina whitei Clark, Popes Creek. 



