Eurpyterus pittsfordensis Sarle 
Page 196 
See plates 13-15, 17, 18 
1 Coxa of left third walking leg. Natural size 
2 Coxa of left swimming leg. Natural size 
3 Metastoma showing notch and minute dentation of anterior end. Nat- 
ural size 
4 Coxa of right balancing leg (fourth endognathite). Natural size 
5 Fragmentary ventral side of abdomen, showing five segments, including 
coxa, of swimming leg; the five sternites and four postabdominal 
segments with their fringed posterior emargination. Impressions of 
Leperditiae cover the surface. Natural size 
6 Fragmentary abdomen. Shows character of tergites, notably their 
relative shortness and the four triangular scales on each preabdomuinal 
and on the first two postabdominal ring segments, while the succeeding 
two show their ventral characters. The swimming leg 1s also partially 
shown. Natural size 
Originals (Sarle’s cotypes) are from the Pittsford shale, Pittsford, Mon- 
roe co., N. Y., and in the State Museum 
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