RESEARCHES IN HELMINTHOI^OGY AND PARASITOLOGY. 99 



brane, and very tightly adhering by means of the one or two con- 

 strictions. 



139. Physaloptcra Contorta, Leidy. Body capillary, most narrowed 

 anteriorl5% with the posterior four-fifths spirally contorted ; white, 

 with the intestine brown. Lips prominent, constricted from the 

 body, trilobate. Tail short, conical, acute ; in the male with narrow 

 alae, each furnished with five funnel-shaped pores. lycngth of female 

 from 6 lines to one inch ; breadth to i-4th of a line ; male from one- 

 half to three-fourths the size. 



Frequent in the stomach of Emys serrata, Eiiiys reticulata, Cistiido 

 Carolina, and Kinostcrnum pennsylvanivum, adhering to the mucous 

 membrane in the same manner as Physaloptcra constricta. 



140. Physaloptcra Abjccta, I^eid}'. Body most narrowed anteriorly, 

 incurved. Mouth distinctly bilabiate ; lips lateral, prominent. 

 Caudal extremity incurved, obtusel}^ conical. Length 10 lines, 

 breadth ^,4 a line. 



One specimen was obtained by Mr. Joseph Jones, from the stomach 

 of Psainmophis flagellifo rniis. 



141. Cheiracanthiis Horridus, Leidy. Body subcylindrical, in- 

 curved, posteriorly sub-clavate, obtuse ; anteriorly covered with 

 palmate plates, furnished with as many as eight spines, and degen- 

 erating posteriorly to single spines. Head oblate-spheroidal, spirally 

 echinate. Mouth bilabiate, with the lips lateral and papillated. 

 Length of female 23^ inches, breadth 1^2 lines. Male not seen. 



Four specimens were obtained by Mr. Joseph Jones in the stomach 

 of the Alligator viississippiensis in Georgia. 



142. Tricoccphahis Dispar, Rud. 



Not infrequent in the children of the Anglo-American and also in 

 the negro. 



143. 1 ricoccphalus Minutus, Rud. 



Numerous specimens were obtained hy Joseph Jones from the 

 ccecum of Didclphis virginiana in Georgia. 



144. Cucullamis Microcephalics, Dujardin. 

 Cucullanus trispinosiis, Leidy. Pr. A. N. S., v, 240. 

 Frequent in the stomach and intestine of Eniys guttata, Emys re- 

 ticulata, Emys serrata, and Chelonura serpentina. 



145. Cuculla7ius Roseus,'L,Q.idy. Pr. A. N. S., v, 155. Bodj^ fusi- 

 form, sub-straight, red, anteriorly obtuse. Tail straight, short, 

 conical, acute. Mouth with a complex corneous apparatus. Upper 

 lip of anus turgid. Penis consisting of two calcarate spiculae. Gen- 

 erative aperture of the female two-fifths the length of the body from 



