RESEARCHES IN HELMINTHOLOGY AND PARASITOLOGY. 95 



108. Ascaris Lumbricoides, L,in. 



This species is the second of the most common of parasitic worms 

 in the Anglo- American. 



In the University Museum there is a preparation of the liver of a 

 boy in which a number of individuals of this worm have forced 

 themselves into the divisions of the hepatic duct. 



Frequent also in the small intestines of the hog, Shs scrofa. 



109. Ascaris Leptoptera, Rud. 



Ascaris felis discoloris, lycidy. Pr. A. N. S., v, 155. 

 Found in the small intestine of the panther. Felis concolor. 

 no. Ascaris Mysfax, Rud. 

 Common in the domestic cat, Fc/ix cotus. 



111. Ascaris Marginata, Rud. 

 Frequent in the dog, Canis familiaris. 



112. Ascaris Columiiaris, 'L,Q\dy. 



Ascatis alienata, Rud. Leidy, Pr. A. N. S., v, 205. Body very 

 uniformly cylindrical until within a short distance of the extremi- 

 ties. Head naked ; lips prominent. Tail short, conical, obtuse, in 

 the male incurved. Length of female 4 inches, breadth i^ lines ; 

 length of male 2 inches, breadth y^ a line. 



Two specimens, male and female, were found in the intestine of 

 Mephitis c king a. 



113. Ascaris Levis, Leidy. Body cylindrical, narrrowing at the 

 extremities. Head naked ; lips prominent. Tail conical, mucro- 

 nate. Length of female 2>y^ inches, breadth 1)3 lines. Male not 

 seen. 



A single specimen was obtained by Mr. Packard from the intes- 

 tine of Arctomys monax. 



114. Ascaris Tentati/lata, Rud. Found in the intestine of Didel- 

 ph is virgin ia na . 



115. Ascaris Vesicularis, Frolich. Common in the coecum of the 

 turkey, Meleagris gallopavo, and of the fowl, Phasiamis gallus. 



116. Ascaris InHexa, Rud. Common in the small intestine of the 

 fowl Phasianus gallus. 



117. Ascaris Serpoituius, Rud. One female, i>2 inches long, was 

 obtained by Mr. Schafhirt from the intestine of Ardea violacea. 



118. Ascaris Longa, Leidy, Body most narrowed anteriorly, and 

 only slightly .so at the posterior fourth. Head naked, subacute ; 

 lips slightly prominent. Tail obtusely rounded, with the anus 

 forming a transverse, subcrescentic fissure nearly at its extremity. 

 Length of the female 9 inches, breadth I'j lines. Male not seen. 



