1856.] ^B 



<of penis curved ensiform, costate, emarginate at the extremity. Length of female 

 8 lines, breadth J of a line ; length of male to 4 lines, hreadth to J of a line. 



Found in the stomach of JSmys serrata. (Esophagus long, pestle-form, gizzard 

 globular, commencement of the intestine oordiform, rectum short, wide, pyriform. 

 Ovaries double. 



134. Spiro:notjra afpine Leidy. Body of female curved ; that of male posterior- 

 ly spiral. Head naked ; mouth with a circular lip of 6 ? papilla?. Tail of female 

 nearly straight, mod-erately long, -conical, acute ', of the male, conical, incurved 

 with a ijair of tubercles on each side near the end. Spicula of penis curved 

 nsiform, costate, acute. Length of female 4|- lines, breadth one-fifth of a line 

 length of male 3 lines, breadth J of a line. 



Found in the coecum of Cistudo Carolina, 



135. Physaloptera turgida Rud. 



Spiroptera Didelphidis virginiana. Leidy, Pr. A. N. S., v, 155. 

 Common in the stomach of Didelphis virginiana^ Found by Dr, Goddard, Mr. 

 Schafhirt, and myself 5 and also by Mr. Jos, Joas, in Georgia. 



136. Physaloptera limbata Leidy. 



Spiroptera Scalopk canadensis. Leidy, Pi-. A. N. S., v, 156. The mouth bilabiate 

 and surrounded by an elevated linear margin. Al of male, each with 4 diverg- 

 ing costse. The length 6 lines, breadth ^ of a line, 



137- Physaloptera mucronata Diesing. 



Numerous specimens were obtained by Mr. Joseph Jones, from the stomach of 

 the Alligator mississipiensis, in Georgia. 



138. Physaloptera oonstricta Leidy. Body white, with th* brown intestine 

 shining through, cylindrical to within a short distance of the extremities, in- 

 curved ; anterior extremity with one or two constrictions, and abruptly inflexed. 

 Lips large, lateral, constricted from the body, each trilobate. Tail of female in- 

 curved, abruptly conical and acute ; of the male alated, with the alas narrow, 

 long, and turgid. Length of female 1| inches, breadth two-fifths of a line ; male 

 half the size. 



Found frequently in the stomach of Tropidonotus sipedon, with the anterior ex- 

 tremity of the body hooked through the mucous membrane, and very tightly ad- 

 hering by means of the one or two constrictions. 



139. Physalopteka contorta Leidy. Body capillary, most narrowed anterior- 

 ly, with the posterior four-fifths spirally contorted ; white, with the intestine 

 brown. Lips prominent, constricted from the body, trilobate. Tail short, coni- 

 cal, acute:; in the male with narrow alae, each furnished with five funnel-shaped 

 pores. Length of female from 6 lines to an inch ; breadth to J of a line ; male 

 from one half to three^fourths the size. 



Frequent in the stomach of E7nys serrata, Emys reticulata, Cistndo Carolina, and 

 Kinosternum pennsylvanicum, adhering to the mucous membrane in the same 

 manner as Physaloptera constricta. 



140. Physaloptera. abjecta Leidy. Body most narrowed anteriorly, incurved. 

 Mouth distictly bilabiate ; lips lateral, prominent. Caudal extremity incurved, 

 obtusely conical. Length 10 lines, breadth ^. a line. 



One specimen was obtained by Mr. Jos. Jones, from the stomach of Psammo- 

 phis Jlagelliformis, 



141. Cheieacanthus horridus Leidj. Body subcylindrical, incurved, pos- 

 teriorly sub-clavate, obtuse ; anteriorly covered with palmate plates, furnished 

 with as many as eight spines, and degenerating posteriorly to single spines. 

 Head oblate-spheroidal, spirally echinate. Mouth bilabiate, with the lips late- 

 ral and papillated. Length of female 2f inches, breadth IJ lines. Male not seen. 



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

 Alligator mississipiensis in Georgia. 



142. Tricocephalus dispar Rud. 



i^ot unfrequent in the children of the An^lo-american, and also in the ne^ro. 



