1880. J NATURAL SOIKNCES OF PHILAPEI.PHIA. 39 



where it ends in a minute elevation. A pro])c can be readily 

 inserted in the slit, and can be passed forward. 



The color of the specimen is a dull wliite or waxy. 



No trace of hair is anywhere visible. 



Lengtli of specimen. 1" 9'". 



Length of head, 9". 



Width of body at widest part, I". 



Length of anterior margin of anterior extremity, 4^"'. 



Length of posterior margin of anterior extremity, 2'". 



Length of anterior margin of posterior extremity, 4"'. 



Length of posterior margin of posterior extremity, A'" 



Distance between vent and navel, 1^'". 



