468 MR. R. J. ORTLErP ON A 



Tliree longitudinal chitinous ridge.s project into the lunien of 

 funnel. The tail of the female is abruptly pointed, so that the 

 distance from the aims to the tip of the tail is shorter than that 

 from the anus to the vulva. Female genitalia typical for the genus. 

 Male bursa of the usual CEsophagostome type. Spicules long, 

 tubular, and simple, over 1-1 mm. long, and each is provided with 

 a lateral flange. Larval stages occur in nodules in the wall of the 

 caecum. » 



Habitat. Csecum of Xerus setosus (South Africa). 



On looking through the litei'ature of Q^sophagostomes, I find 

 that Parona and Stossich in 1901 deHcrihed eiS (Bsophagostomwn 

 tuherculatum a parasite from Dasyjyus villosus (Argentine). I 

 have compared their description and figures with some parasites 

 I obtained from the same host, and I am satisfied that the 

 pai'asites collected by me are the same ; further, I am able to 

 state that this parasite is not an (Esopkagostomim, but probably 

 the representative of a new Trichostrongyle genus. 



Literature constdted. 



Creplix. 1849. ISTachtrage zu Gurlt's Yerzeichniss der Thiere 



in welchen Endozoen gefunden worden sind, p. 54. 

 Gedoelst, L. 1916. Notes sur la Faune Parasitaire du Congo 



Beige. Revue Zool. Afr. vol. v. fasc. 1, Dec. 1916, 



pp. 60-62. 

 Hall, M. C. i 916. Nematodes parasitic of Mammals of the 



orders Rodentia, Lagomorpha, and Hyracoidea. Proc. 



U.S. Nat. Mus. vol. 50, No. 2131. 

 Lane, C. 1917. Bunostomiim kashinathi and the Ancylo- 



stomida^ Ind. Jour. Med. Res. vol. iv. pp. 414-439. 

 Leiper, R. T. 1911. The occurrence of (Esophagosto'inum 



apiostomum as an internal parasite of Man in Nigeria. 



Reprint from Journal of Trop. Med. it Hygiene. 

 LiNSTOW, O. VON. 1878. Compendium der Helminthologie. 



■ . 1889. Compendium der Helminthologie Nachtrag. 



. 1906. Zwei Avenig bekannte Ankylostomen und Q^sopjJiago- 



stomum dentatuon. Centralbl. f. Bakt. Parasit. u. Infek. 



vol. xliii. Heft 1, p. 90. 

 Parona, C, & Stossich, M. 1901. OSsophagostomum, " tuher- 



cnlatum " n. sp. parasita dei " Dasypus." Bull, dei Musei 



d. zool. e anat. comp. d. Univ. d. Geneva, No, 110. 

 Railliet, a. 1895. Traite de Zoologie Medicale. 2. ed. Paris; 



p. 418 & pp. 451-452. 

 Railliet A., & Henry, A. 1906. Sur les Oilsophagostomes des 



Primates. C. R. Soc. Biol. Paris, vol. Iviii. (1) pp. 448- 



450. 

 . 1909. Sur la classification des Strongylidae. II. Ankylo- 



stominae. C. R. Soc. Biol. Paris, vol. Ixvi. pp. 85-88 &, 



pp. 168-171. 



