304 DR. T. S. COBBOLD ON HUMAN ENTOZOA. [Nov. 25, 



20. OxYURis VERMicuLARis, Bremscr. 



0. vermicularis, Bremser, Chiaje, Duges, Deslongchamps, La- 

 marck, Dutschek, Dujardin, Mayer, Siebold, Pruner, Blanchard, 

 Leidy, Ktlchenmeister, Moquin-Tandon, Weinland. 



Ascaris vermicularis, Linnaeus, Mviller, Fabricius, Bloch, Goeze, 

 Werner, Gmelin, Schrank, Jordens, Bvera, Rudolphi, Nitzsch, Crep- 

 lin, Raspail, Owen, Bellingham. 



Fusaria ve7'micularis, Zeder. 



So far as the anatomy of Oxyuris is concerned, the investigations 

 of numerous parasitologists, and more especially those of Walter (in 

 the eighth volume of Siebold and Kolliker's ' Zeitschrift '), have left 

 little to be accomplished ; but the precise mode in which the young 

 gain access to the human body is still uncertain. It is well known 

 that the eggs have embryos developed within them prior to their 

 escape from the parent, and in this respect, therefore, they differ 

 from Ascaris lumbricoides and Trichocephalus on the one hand, and 

 from the viviparous Dracunculus on the other. In all probability, 

 the young escape from the eggs soon after the latter are expelled or 

 migrate per rectum, and, like others of the Nematoda, gain access 

 to the human body with our food whilst they are still in a sexually 

 immature condition. 



21. T^NiA SOLIUM, Linnaeus. 



T. solium, Linnaeus, Gmelin, Jordens, Rudolphi, Cuvier, Olfers, 

 Chiaje, MehUs, Owen, Creplin, Nordmann, Dujardin, Diesing, Kii- 

 chenmeister, Moquin-Tandon, Weinland, Leuckart, &c. 



T. solium (var. abietina), Weinland. 



T. osculis marginalibus solitarius, Linnaeus, Bradley. 



T. cucurbitina, Pallas, Bloch, Batsch, Schrank. 



T. cucurbitina plana pellucida, Goeze. 



T. humana armata, Brera. 



T. dentata, Gmelin. 



T. fenestrata, Chiaje. 



T. vulgaris, Werner. 



T. communis, Moquin-Tandon. 



T. albopuneta hominis, Treutler. 



T. hydatigena anomala, Steinbach. 



T. hydatigena suilla, Fabricius. 



T.jinna, Gmelin. 



T. cellulosa, Gmelin, Treutler. 



Cysticercus cellulosa, Rudolphi, Bremser, Chiaje, Owen, Blain- 

 ville, Sommering, Gurlt, Nordmann, Gescheidt, Creplin, Siebold, 

 Dujardin, Diesing, &c. 



? C.Jischerianus, Laennec. 



? C. dycystus, Laennec. 



? C turbinatus, Koeberle. 



? C. melanocephalus, Koeberle. 



Hydatigena cellulosa, Lamarck, Nordmann. 



Hydatis finna, Blumenbach. 



