1282 NEW YORK STATE MUSEUM 



PLATE 22 



Eurypterus pittsfordensis sp. nov. 



Page 1098 



1 Fragmentary ventral side of abdomen of male showing five 

 joints, including gnathobase, of swimming foot; the five sternites 

 and four postabdominal segments with their fringed posterior 

 emargination. Natural size. Impressions of Leperditiae cover 

 the surface ' 



