64 PEOCEEDINGS OF THE NATIONAL MUSEUM vol. 81 



Class ACANTHOCEPHALA 

 Family NEOECHINORHYNCHIDAE Ward, 1917 



Genus NEOECHINORHYNCHUS Stiles and Hassall, 1905 



This genus is represented in North America by a number of species 

 that are parasitic in fishes and turtles. There appears to be only one 

 member of the genus parasitic in North American reptiles. 



NEOECHINORHYNCHUS EMYDIS (Leidy, 1852) 



This common parasite of terrapins has been encountered several 

 times in the intestine of Pseudemys elegans. Frequently these worms 

 were so numerous as to fill the lumen of the undistended intestine. 



