THE EURYPTERIDA OF NEW YORK 237 
[pl. 31]. These preoral appendages were the only prehensile organs of the 
animal; they are, therefore, of relatively large size. If the separate chel- 
icera belongs to the specimen alongside which it lies—of which there is 
Figure 54 Eusarcus scorpionis Grote & Pitt. Ventral view of swimming leg of right 
side, and the coxa of that of the left side; the metastoma; operculum and the two following 
sternites. The female opercular appendage is partly preserved [see diagram, text fig. 55]. 
Text figure 57 is a diagram from the swimming leg here shown. Natural size. The original 
in the State Museum 
