TJENIA : CKASSICOLLIS, SAGINATA 243 



that he has observed it twice in Constantine (Algeria) in human beings. The 

 descriptions, however, are not sufficiently explanatory to characterise the species. 

 It is highly probable that they relate to Tcenia solium. Galli Valerio even 

 swallowed five specimens of Cysticercus pisiformis, but without result. 1 



4. Tcenia 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 upon bread) are eaten raw, being a national remedy for 

 retention of urine, and this custom affords the possibility of the intro- 

 duction of Cysticercus fasciolaris into the intestine of man (Nord. med. 

 Arkiv., 1880, xii.). 



5. Tcenia saginata, Goeze, 1782. 



Syn. : T. solium, L., 1767 (pro parte) ; T. cucurbitina, Pallas, 1781 (p.p.) ; 

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

 T. lata, Pruner, 1847 ; Bothriocephalus tropicus, Schmidtmuller, 1847 j 

 T. mediocanellata , Kiichenmeister, 1855 ; T. zittavensis, Kchmst., 1855 ; 

 T. tropica, Moquin-Tandon, 1860 ; T. (Cystotcenia) mediocanellata, Leuckart, 

 1863. 



The length of the entire tapeworm averages 4 8 10 m. and 

 more, even up to 36 m. According to Berenger-Feraud it attains 

 a length of 74 m. (?) The head is cubical in shape, 1-5 2 mm. 

 in diameter ; the suckers are hemispherical (o - 8 mm.), and are 

 frequently pigmented ; there is a sucker-like organ in place of the 

 rostellum, and this also is frequently pigmented. The neck is 

 moderately long and about half the breadth of the head ; the 

 proglottides, the number of which averages more than 1,000, 

 gradually increase in size ; the mature detached segments are shaped 

 exactly like pumpkin-seeds, and are about 16 20 mm. in length 

 and 4 7 mm. in breadth. The genital pores alternate irregularly 

 and are situated somewhat behind the middle of the lateral border. 

 There are twenty to thirty-five lateral branches at each side of 

 the median trunk of the uterus, and these again ramify. The eggs 

 are more or less globular, the egg-shell frequently remains intact 

 and carries one or two filaments ; the embryonal shell is thick, 

 radially striated, is transparent and oval ; it is 0-3 0*04 mm. in 

 length, and 0-02 0-03 mm. in breadth. Several segments simul- 

 taneously are usually passed without defaecation. 



Galli- Valerio, C. /. B., P. u. I.," 1898 [i], xxiii., p. 941. 



