ON MAMMALIAN CESTODES. 549 



PAPERS. 



36. Contributions to the Anatomy and Sj'stematic Arrange- 

 ment o£ the (Jestoidea. By Frank E. Beddard, M.A., 

 D.Sc., F.R.S., F.Z.S., Prosector to the Society. 



[Received A}3vil 8, 1912 : Read May 6, 1913.] 



(Text-figures 85-94.) 

 X. Ox Two Species op Tapeworms from Gesetta doxgolana. 



Index. 



Pase 



Dipf/lidiiim dongolense, sp. ii 549 



Uiplopylidium, gen. uov 569 



X). genettiB, sp. n 559 



An examination of the small intestine of a Dongolan Genet 

 {Genetta dongolana) yielded about a dozen small tapeworms and 

 the hinder part of the body of a larger worm. The latter I have 

 not studied ; the former belong to two species which are described 

 in the present paper. Inasmuch as the Genet, which died in 

 November of last year, had been about four years in the Gardens, 

 it is uncertain whether the parasites are to be regarded as indi- 

 genous to Africa or had been acquired in captivity. From this 

 particular variety of the Genet I believe that no tapeworms have 

 been recorded ; but from allied forms species of Cestodes are 

 known, v. Linstow, in his ' Compendium der Helminthologie,' * 

 mentions three from " Viverra genetta," \iz. Jlesocestoides ambigitus 

 Vaillant t, Tcenia platyclera and T. genettce, both of Gervais t. The 

 latter, as I point out later, may be identical Avith my Dijjylldium. 

 Tcenia platydera seems § to have no rostellar hooks, and may 

 qiiite possibly be an Anoplocephalid. I refer later to other species 

 fiom Genets in my description of Dipylidium dongolense. 



(1) Dipylidium dongolense, sp. n. 



There were altogether five specimens of this species, all of 

 which I have carefully examined either entii'e or cut into series 

 of transverse and longitudinal sections. Tlie largest sj^ecimen, 

 after preservation in alcohol, measures just 5 mm. in length 

 and 1 mm. in breadth at the broadest part. During life 

 individuals reached a length of 6 mm. The accompanying 

 illustration (text-fig. 85) represents the individual referred to as 

 the lai'gest. The scolex is not shai-ply marked ofi;" from the 

 ensuing neck, which is very short and soon passes into the 



* Hannover, 1878, p. 37. 



t Coraptes Rend. Soc. Biol. Paris, 1863, p. 48. 



X Mem. Ac. Sci. Montpellier, 1847. 



§ Cf. Diesing, Svst. Helminthuni. i. p. 519. 



37* 



