304 DR. T. S. COBBOLD ON HUMAN ENTOZOA. _[Noyv. 25, 
20. OxyuRIS VERMICULARIS, Bremser. 
O. vermicularis, Bremser, Chiaje, Dugés, Deslongchamps, La- 
marck, Dutschek, Dujardin, Mayer, Siebold, Pruner, Blanchard, 
Leidy, Kiichenmeister, Moquin-Tandon, Weinland. 
Ascaris vermicularis, Linnezeus, Miller, Fabricius, Bloch, Goeze, 
Werner, Gmelin, Schrank, Jérdens, Brera, Rudolphi, Nitzsch, Crep- 
lin, Raspail, Owen, Bellingham. 
Fusaria vermicularis, 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 KGlliker’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 Asearis 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. Tantra soLium, Linneus. 
T. solium, Linneus, Gmelin, Joérdens, Rudolphi, Cuvier, Olfers, 
Chiaje, Mehlis, Owen, Creplin, Nordmann, Dujardin, Diesing, Ki- 
chenmeister, Moquin-Tandon, Weinland, Leuckart, &c. 
T. solium (var. abietina), Weinland. 
T. osculis marginalibus solitarius, Linneeus, Bradley. 
T. cucurbitina, Pallas, Bloch, Batsch, Schrank. 
T. cucurbitina plana pellucida, Goeze. 
T. humana armata, Brera. 
T. dentuta, Gmelin. 
T. fenestrata, Chiaje. 
T. vulgaris, Werner. 
T. communis, Moquin-Tandon. 
T. albopuncta hominis, Treutler. 
T. hydatigena anomala, Steinbach. 
T. hydatigena suilla, Fabricius. 
T. finna, Gmelin. 
T. cellulosa, Gmelin, Treutler. 
Cysticercus cellulosa, Rudolphi, Bremser, Chiaje, Owen, Blain- 
ville, Sémmering, Gurlt, Nordmann, Gescheidt, Creplin, Siebold, 
Dujardin, Diesing, &c. 
? C. fischerianus, Laennec. 
? C. dycystus, Laennec. 
? C. turbinatus, Kceberle. 
? C. melanocephalus, Keeberle. 
Hydatigena cellulosa, Lamarck, Nordmann. 
Hydatis finna, Blumenbach. 
