1894.] ON SOME NEMATODE PABASITES. 631 



6. Notes on Nematode Parasites from the Animals in the 

 Zoologica) Gardens, London. By Arthur E. Shipley, 

 M.A., Fellow and Tutor of Christ's College, Cambridge. 



[Eeceived June 8, 1894.] 

 (Plate XXXV.) 



The materials for the following notes on internal parasites 

 found during the post-mortem examination of various animals 

 which died in the Grardens of this Society were forwarded 

 to me by my friend Mr. P. E. Beddard during the autumn of 

 1893. 



The collection included examples of five species of Nematodes 

 and of one specimen of Pentastoma. I was unable to identify one 

 small species of Nematode, of which there was but one specimen, 

 taken from the walls of the lower intestine of a Canis virginianus. 

 The other Nematodes belonged to the following four species : — 



1. DiOHEILONEMA BISPEN'OSUM, Diesing. 



There was but one specimen of this species, and this was rather 

 shrivelled aud distorted. It was a male, 28 cm. in length, about 

 3 to 4 mm. in breadth in the middle of the body, and tapering 

 gradually at either end. 



The specimen was taken from the tissue surrounding the 

 intestine of a Boa constrictor ; according to Diesing it is found 

 under the skin as well as in the abdominal cavity of this snake, 

 and also amongst the coats of the intestine in Ojjhis sauroceplialus, 

 and in the membranes surrounding the lungs aud oesophagus of 

 Thamnoiius poecilostoma in Brazil. 



This species was first called Filaria hoce-constrictoris by Leidy 

 in the ' Proc. of the Acad, of Philadelphia,' vol. v. Diesing in his 

 ' Systema Helminthum,' 1851, refers to it under the name Filaria 

 bisjnnosa, a name accepted by Leidy in the ' Proc. of the Acad, of 

 Philadelphia,' 1856, p. 56 ; but in his " Eevision der Nemotoden," 

 in the ' Sitzungsberichte der k. Akad. in Wien,' Bd. xlii. 1861, 

 Diesing mentions it under the name quoted above, Dicheilonema 

 hispinosuni. 



2. Phtsaiopteea ttjkgida, Eud. 



Numerous specimens of this species were taken from the 

 stomach aud intestine of Azara's Opossum, Didelpliys azarce. The 

 species is described by Dujardin in his ' Histohe Naturelle des 

 Helminthes,' 1845, p. 92, under the name Spii-optera turgida, and 

 by Schneider in his ' Monographie der Nematoden,' 1866, p. 62. 

 It has also been found in Bidelpliys cancrivora and D. nudicaudata 

 aud virginiana. 



