PLATE XXVI. 



LlMOPTERA CANCELLATA. 



Page -244. 

 See Plate 92. 



Pig. 1. The li fa | sn. Another figui f this val on plate 92, fig. 3. 



Fig. J. The right side of the same. The pallia] line and muscular impression are visible in eachvahe 

 but are nol represented in the figure. 

 :!. A cardiual view, showing at ». o', the filling- of the umbonal adductor muscular attachment where 

 the pallial line terminates. 

 Pig. I. An enlargement of the surface from the left valve. 

 Hamilton group. Falls of tkt ■ 



LlMOPTERA PAUPERATA. 



i age H3. 

 Pig. 5. View "fan imperfect left valve. The radii on the wing and posterior side of the body are not 

 made sufficiently distinct. 



Upper Helderberg group. Staff •'. '■ - Co., -V. T. 



LlMOPTERA MACROPTERA. 



Page 

 S< Plates 24, 27, 28, 29 and 02. 

 : . 7. Two left valves showing the striatums of the hinge area. 

 Hamilton group. Madison Co., X. Y. 

 Fig. S. The profile of a small specimen which has been laterally compressed, giving more than the natural 

 rotundity. 



Hamilton group. Co .V. F. 



Fig. 9. A view of the left valve showing fewer and stronger radii than usual. 



LlMOFIERA OBSOLETA ? 

 Page 249. 



See Plates 29 and 92. 

 Pig. in. A view of the upper portion of the right side of a specimen, showing the broad striated ligamental 



area of the left \ nh e. 



Hamilton group. Cazenovia, X. Y. 



