384 



LIFE OF THE PLEISTOCENE 



Sphacrium (marginatum (Prime) 



" acuminatum (Prime) 



" torsum Sterki 



" levissimum Sterki 



" species 



Musadium secure (Prime) 



transversum (Say) , , 



truncatum (Linsley) 



parlumeium (Say) 



" rosaceam (Prime) 



Pisidium abditum (Haldeman) 



" adamsi (Prime) 



" adamsi affine Sterki 



" compressum (Prime) 



" compressum confertum Sterki ... 

 " compressum laevigatum Sterki... 

 " compressum illinoisensc Sterki. 



" conlortum (Prime) 



" costatum Sterki 



" cruciatum Sterki 



" fallax Sterki 



" idahoense Roper 



" kirklandi Sterki 



" mainense Sterki 



" medianum Sterki 



" medianum minutum Sterki 



" milium (Haldeman) 



" noveboracense (Prime) 



" ohioense Sterki 



" pauperculum Sterki 



" punctatum Sterki 



" roperi Sterki 



" rotundatum Prime 



" sargenti Sterki 



scutellatum Sterki 



splendidulum Sterki 



superius Sterki 



lenuissimum Sterki 



tenuissimum calcareum Sterki.... 



trapezoideum Sterki 



triangulare Sterki 



idlra-montanum (Prime) 



variabile (Prime) 



SO 

 C 



CO 



