96 RESEARCHES IN HELMINTHOLOGY AND PARASITOLOGY. 



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

 intestine of Tantalus hciilator, in Georgia. 



119. Ascaris Temdcollis, Rud. Frequent in the stomach and in- 

 testine of the Alligator niississippiefisis. 



120. Ascaris Ano/fra, Dujardin. Eight specimens were obtained 

 from the intestine of Coluber constrictor. The females measure up to 

 6 inches in length by i line in breadth ; the males 3I2 inches in 

 length by 34' of a line in breadth. Six specimens, apparently of 

 this species, were sent to me by Prof. Agassi/.. They were obtained, 

 with nearly a pint of others, from the intestine of the boacon- 

 strictor. 1 do not feel positive that they are really of the same 

 species, as the specimens are too badly preserved to ascertain the 

 fact correctly : but the size and details of form agree pretty closely. 



121. Ascaris Niida, Leidy. Body most narrowed anteriorly. 

 Head naked, with the epidermis closely adherent ; lips large, oblong. 

 Tail short, incurved, conical, minutely mucronate. Length of fe- 

 male 2 to 2^2 inches, breadth i-3d to y2 a line. Male not seen. 



Two females were obtained from the intestine of Crotalus adaman- 

 tcus by Mr. Schafhirt. Is this probably the same as the last species ? 



122. Ascaris Humitis, Leidy. Body cylindroid, recurved, white. 

 Head obtuse, naked ; mouth trilobed, pharyngeal apparatus none ; 

 oesophagus pestleform. Tail substraight, conical, acute. Length 

 2 lines, breadth i-ioth of a line. 



Eight specimens were obtained from the lungs of Tropidonotus 

 si rial is in December. 



123. Ascaris E/itonielas, Leidy. Proc. A. N. S., v, 206. 

 From the lungs of Ra)ia halccina. 



124. Ascaris Acuta , Muller. A single male, 14 lines long and ^d 

 of a line broad, was obtained from the intestine of Platessa plana. 



125. .Iscaris Ne^lccta, Leidy. Body cylindro-fusiform, most nar- 

 rowed anteriorly. Head naked ; lips large, obtuse. Tail short, 

 conical, acute. Length of female 2 inches, breadth three-fifths of a 

 line ; male about half the size. 



Tweh^e specimens were obtained by Prof. Baird from the intestine 

 of Diodon tnatulo-striattis. 



126. .Iscaris Clavata, Rud. Head with a linear ridge on each 

 side. Tail short, conical, incurved, mucronate ; in the female with 

 a linear ridge extending forward on each side. Length of female to 

 3)4 inches, breadth -^4 of a line ; length of male to 2 inches, breadth 

 to ^ a line. 



Numerous specimens were obtained by Prof. Agassi/, from the in- 



