lOO RESEARCHKS IN HELMINTHOI-OGY AND I'ARA.SITOI.OG V. 



the tail. Length of female to i '.- inches, breadth to three-fifths a 

 line ; length of male to lo lines, breadth 12 a line. 

 From the intestine of Tcstitdo ? from Java. 



146. Sclcrosto))in))i Doita/iiiii, Rud. 



Several specimens, male and female, were obtained from the liver 

 of the hog, Sus scro/a. 



147. S('/(rosto>?iinii Sy>ioan/i(s, Diesing. 



Common in the trachea of the common fowl, J^/iasicDtiis ga//us. 



148. Sclcrosioniiiiii .Iniiation, Rud. 



Specimens preserved in the collection of the Academy and pre- 

 sented by Dr. Harlan, who obtained them from an aneurism of the 

 aorta of the horse, Eqmis callabus. Strongylus anuatiis, Rud. Har- 

 lan Med. and Phys. Res., 553. 



149. Sirongylus Atfcniiatus, Leidy. Body cylindroid, narrowing 

 toward the extremities ; female nearly straight, male curved. Head 

 obtu.se, bialated ; alae long and moderately broad. Mouth with 

 minute angular papillae. Tail of female straight, conical, acute. 

 Bursa of the male bilobed, multiradiate. Length of female 6 lines, 

 breadth r-5th of a line ; length of male 4^^ lines, breadth one-fifth 

 of a line. 



Sixteen specimens were obtained by Mr. Schafhirt from the in- 

 testine of Cynocephabis porcarius. 



150. Strongylus Simplex^ Leidy. Body cj^lindroid, anteriorly 

 rather abruptly narrowed ; female straight ; male curved, with the 

 caudal extremity incurved. Head obtusely conical, not alated nor 

 papillated. Tail of female compressed, conical, acute ; generative 

 aperture one-third the length of the body from its extremity. Bursa 

 of male trilobed ? one lobe posterior and two lateral, multiradiate. 

 Length of female 4 to 5 lines, breadth i-4th of a line ; length of 

 male 2V2. to 3^2 lines, breadth i-6th of a line. 



Numerous specimens were obtained from the small intestine of 

 Hystrix dor sat a. 



151. Strongylus . liiricii/aris, Zeder. Intestine of Ihifo aincruainis 

 and of Cistiido Carolina. 



152. Eustro7igyhis Gigas, Diesing. Frequent in the kidneys of 

 the mink, Putorius vison, and occasionally occurring in the dog, 

 Canis faviiliaris. One specimen, eight inches long, was obtained 

 by Mr. Joseph Jones from the heart of the latter animal, in associa- 

 tion with Filariae, mentioned in another part of this paper. 



153. Triclwsoimun Lhieare, Leidy. Body filiform, nearly equally 

 narrowed towards the extremities. Caudal extremity of the female 

 spirally involute. Tail incurved, obtuse, with two conical points 



