PLATE XLV. 



figures are from camera liicida drawings of the type specimens by W. H. Dall. 



Erycina fabiilina Dall; 5.0 mm.; Oak Grove, Florida; Oligocene; p. 1145. 

 Bornia floridana Dall; J.t, mm.; Oak Grove, Florida; Oligocene; p. 1150. 

 Erycina undosa Dall; 3.5 mm.; Chipolan Oligocene; p. 1144. 

 Hindsiella carolincnsis Dall; 5.5 mm.; Miocene of North Carolina; p. 1138. 

 Rochcfortia Stiinpsoni Dall; 6.0 mm,; Miocene of North Carolina; p. 1160. 

 Montacuta petropolitana Dall; 5.75 mm.; Miocene of Petersbvirg, Virginia; 



P- II73- 

 Rocltcfortia planiikita Stimpson ; 4.1 mm.; Pliocene of Florida; p. 1161. 

 Hindsiella nephritica Dall; 4.75 mm.; Oligocene of Florida; p. 1137. 

 Hindsiella acuta Dall; 6.0 mm.; Miocene of North Carolina; p. 1138. 

 Sportclla pctropolitana Dall ; 5.75 mm. ; Miocene of Petersburg, Virginia ; p. 



1 130. 

 Bornia rota Dall; 4.2 mm.; Miocene of North Carolina; p. 1151. 

 Hindsiella donacia Dall; 5.66 mm.; Claibornian ; p. 1136. 

 Sportclla recessa Glenn; 5.0 mm.; Miocene of Maryland; p. 1131. 

 Erycina curtidcns Dall ; 3.66 mm. ; interior of right valve ; Oligocene of 



Florida; p. 1145. 

 The same, showing hinge of a left valve; p. 1145. 



Bornia dodona Dall; 5.25 mm.; Oligocene of Oak Grove, Florida; p. 1150. 

 Erycina chipolana Dall; 4.1 mm.; Oligocene of Florida; p. 1 144. 

 Montacuta inariana Dall; 4.0 mm.; Miocene of Marjdand ; p. 1173. 

 Erycina marylandica Glenn; 3.05 mm.; Miocene of Maryland; p. 1146. 

 Anisodonta (Fulcrella) Carolina Dall; 5.0 mm.; Miocene of North Carolina; 



P- II33- 

 Montacuta claiborniana Dall; 4.5 mm.; Eocene of Alabama; p. 1171. 

 Erycina protracta Dall; 8.35 mm.; Pliocene of South Carolina; p. 1146. 

 Dicranodesma calvertcnsis Glenn, interior of right valve ; 4.75 mm. ; Miocene 



of Maryland; p. 1157. 

 The same, interior of left valve; 4.75 mm.; p. 1157. 

 Alveinus rotundus Dall, interior of left valve; 1.9 mm.; Chipolan Oligocene, 



Florida; p. 1 167. 

 Diplodonta puncturella Dall, interior of left valve and profile of teeth ; 6.0 mm. ; 



Oligocene of Eowden, Jamaica; p. 1183. 

 Solecardia {Spaniorinus) Cossmanni Dall, interior of right valve; 8.0 mm.; 



Miocene of Virginia; p. 1125. 

 The same, hinge of left valve; p. 1125. 

 Alveinus rotundus Dall, interior of right valve, showing hinge; 1.9 mm.; 



Chipolan Oligocene of Florida; p. 1167. 



