156.] 51 



112. AscAEis coMTMNARis Leidy. 



Ascaris alienata Rud. Leidy, Pr. A. N. S., v, 205. Body very uniformly cylin- 

 drical until within a short distance of the extremities. Head naked ; lips promi- 

 nent. Tail short, conical, obtuse, in the male incurved. Length of female 4 

 inches, breadth 1^ lines ; length of male 2 inches, breadth ^ a line. 



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



113. Ascaris L^\^s Leidy. Body cylindrical, narrowing at the extremities. 

 Head naked ; lips prominent. Tail conical, mucronate. Length of female SJ 

 inches, breadth 1^ lines. Male not seen. 



A single specimen was obtained by Mr. Packard, from the intestine of Arcto- 

 mys monax, 



114. Ascaris tentaculata Rud. 



Found in the intestine of Didelphis virginiancL 



115. Ascaris vesicularis Frolich. 



Common in the coecum of the turkey Meleagris gallopavo^ ajid of the fowl, 

 Phasianus gallus. 



'116. Ascaris tnfiexa Rud. 



Common in the small intestine of the fowl, Phasianus gallue. 



117. Ascaris serpentulus Rud. 



One female, 1 J inches long, was obtained by Mr. Schafhirt from the intestine 

 of Ardea molacea. 



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 

 iissure nearly at its extremity. Length of the female 9 inches, breadth 1^- 

 lines. Male not seen, 



A single specimen was obtained by Mr. Joseph Jones, from the intestine of 

 Tantalus loculator, in Georgia. 



119. Ascaris tenuicolms Rud, 



Frequent in the stomach and intestine of the Alligator mississipiensis. 



120. Ascaris anoura Dujardin. 



Eight specimens were obtained from the intestine of Coluber constrictor. The 

 females measure up to 6 inches in length by 1 line in breadth ; the males 3J 

 inches in length by f of a line in breadth. Six specimens, apparently of this 

 species were sent to me by Prof. Agassiz, They were obtained with nearly a 

 pint of others, from the intestine of tbe Boa constrictor. I do not feel positive 

 that they are really of the same species, as the specimens are too badly pre- 

 served to ascertain the fact correctly ; but the size and details of form agree 

 pretty closely. 



121. Ascaris nuda Leidy. Body most narrowed anteriorly. Head naked, 

 with the epidermis closely adherent ; lips large, oblong. Tail short, incurved, 

 conical, minutely mucronate. Length of female 2 to 2J inches, breadth ;| to J 

 a line. Male not seen. 



Two females were obtained from the intestine of Crotalus adamanteus^ by Mr. 

 Schafhirt. Is this probably the same as the last species ? 



122. Ascaris humilis Leidy. Body cylindroid, recurved, white. Head ob- 

 tuse, naked ^ mouth trilobed ? pharyngeal apparatus none ; oesophagus pestle- 

 form. Tail substraight, conical, acTite. Length 2 lines, breadth one-tenth of a 

 line. 



^ Eight specimens were dbtained from the lungs of Tropidonotus sirtalis, in De- 

 cember. 



123. Ascaris entomelas Leidy. 

 Proc. A. N. S., V, 206. 



From, the lungs of Eana haleaina. 



