^* [February, 



143. Tricocephalus minutcs Rud. 



Numerous specimens were obtained by Joseph Joues from the coecum of Di~ 

 delphis virginiana in Georgia. 



144. CccuLLANUS MiCROCEPHALUS Dujardin. 

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



Frequent in the stomach and intestine of Emys guttata, Emys reticulata, Emya 

 ierrata, and Chelonura scrpmtina. 



145. Cucullanus roseus Leidy, Pr. A. N. s., v, 155. Body fusiform, 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. Generative aperture of the female two-fifths the length 

 of the body from the tail. Length of female to \\ inches, breadth to three-fifths 

 a line ; length of male to 10 lines, breadth \ a line. 



From the intestine of Testudo ? from Java. 



146. SCLEROSTOMUM DENTATUM Rud. 



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

 Sus scrofa. 



147. SCLEROSTOMUM S-iTJGAMUS Dicsiug. 



Common in the trachea of the common fowl, Phasianus gallus. 



148. SCLEROSTOMUM ARMATUM Rud. 



Specimens preserved in the collection of the Academy, and presented by Dr. 

 Harlan, who obtained them from an aneurism of the aorta of the horse, Equus 

 caballus. Strongylus armatus Rud., Harlan Med. and Phys. Res. 553. 



149. Stroxgylus attenuatus Leidy. Body cylindroid, narrowing towards 

 the extremities ; female nearly straight, male curved. Head obtuse, bialated ; alee 

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

 one-fifth of a line. 



Sixteen specimens were obtained by Mr. Schafhirt from the intestine of Cyno- 

 cephalus porcarius. 



150. Strongylus simplex Leidy. Body cylindroid, 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 ex- 

 tremity. Bursa of male trilobed ? one lobe posterior and two lateral, multiradi- 

 ate. Length of female 4 to 5 lines, breadth ^ of a line ; length of male 2^ to 3^ 

 lines, breadth ^ of a line. 



Numerous specimens were obtained from the small intestine of Hystrix dorsata. 



151. Strongylus auricularis Zeder. 



Intestine of Bufo aincricanus and of Cistudo Carolina. 



152. Eustrongylus gigas Diesing. 



Frequent in the kidneys of the mink, Putorhis vison, and occasionally occurring 

 in the dog, Ca7iis familiaris. One specimen, eight inches long, was obtained by 

 Mr. Joseph Jones from the heart of the latter animal, in association with Filarice, 

 mentioned in another part of this paper. 



153. Trichosomum lineare Leidy. Body filiform, nearly equally narrowed 

 towards the extremities. Caudal extremity of the female spirally involute. 

 Tail incurved, obtuse, with two conical points on the ventral aspect of the ex- 

 tremity. Caudal extremity of the male spiral ; tail long, conical, acute ; genera- 

 tive aperture a considerable distance from the end of the tail. Length of 

 female 3 inches, breadth ^ of a line ; length of male 1^ inches, breadth one-tenth 

 of a line. 



Seven specimens were obtained from the small intestine of the cat, Felis catus. 



