338 THE ANIMAL PARASITES OF MAN 



twenty- four in number. Calcareous bodies numerous, 15-2 p in 

 diameter. Eggs maximum 45-6 p by 41-8/4. Smallest 34*2^ by 

 30*4 //,. Mode 38/4 by 30*4 p. 



Taenia marginata, Batsch, 1786. 

 Syn. : T. e. Cysticerco tenuicolli, Kiichenmeister, 1853. 



This species, which in structure resembles Tcenia solium, lives in the intestine 

 of the dog and the wolf. It attains 1-5 to 4 m. in length, possesses a double crown 



of thirty to forty hooks, on 

 an average thirty-six to thirty- 

 eight hooks, and in its larval 

 stage (Cysticercus tenuicollis} 

 lives in the peritoneal cavity of 

 ruminants and the pig, occasion- 

 ally in the monkey and squirrel' 

 It is included in this work 

 because, according to one state- 

 FIG. 240. Large and small booklets of Tania ment, C. tenuicollis is supposed 

 marginata. 280/1. (After Leuckart.) to have been observed in man 



in North America ; but the case 



is not quite certain, as the number of hooks was less than in C. tenuicollis and 

 coincided with C. cellulose?, although the size of the cysticercus appeared to point to 

 C. tenuicollis. A yet earlier statement of Eschricht, that Cysticercus tenuicollis had 

 been observed in Iceland in the liver of a man, is undoubtedly due to an error. 



Taenia serrata, Goeze, 1782. 



This parasite attains a length of from 0-5 to 2 m., possesses a double crown of 

 thiity-four to forty-eight (mostly forty) hooks. It lives exclusively in the intestine 

 of the dog, the corresponding cysticercus (Cysticercus pisiformis] living in the 

 mesentery of the hare and rabbit. We mention this species with all reserve 

 amongst the parasites of man, because Vital states that he has observed it twice in 

 Constantine (Algeria) in human beings. The data, however, are not sufficient to 

 characterize the species. It is highly probable that they relate to Tcenia solium. 

 Galli-Valerio even swallowed five specimens of Cysticercus pisiformis, but without 

 result. 



Taenia crassicollis, Rud., 1810. 



I only mention this species from the intestine of the domestic cat because 

 Krabbe regards its occurrence in man as possible. It attains a length of 60 cm. 

 and is armed ; its cysticercus {Cysticercus fasciolaris} lives in the liver of mice and 

 rats. In Jutland, according to Krabbe, chopped-up mice (spread on bread) are 

 eaten raw, being a national remedy for retention of urine, and this custom affords 

 the possibility of the introduction of C. fasciolaris into the intestine of man (Nord. 

 med. Arkiv, 1880, xii). 



Taenia saginata, Goeze, 1782. 



Syn. : Tcenia solium^ L., 1767 (pro parte} ; Tcenia cucurbitina, Pallas, 1781 (p.p.] ; 

 Tcenia inermis, Brera, 1802. Moquin-Tandon, 1860; Tcenia dentata, Nicolai, 1830; 

 Tcenia lata, Pruner, 1847; Bothriocephalis tropicus, Schmidtmuller, 1847; Tcenia 

 mediocanellata, Kiichenmeister, 1855 ; Tcenia zittavensis, Kiichenmeister, 1855 ; Tcenia 

 tropica, Moquin-Tandon, 1860; Tcenia (CystoUenia] mediocanellata, Leuckart, 1863. 



