TAPE-WOKMS OF THE SUB-FAMILY AVFrELLlNINyli:. 323 



testicles ; length two to three metres ; inhabits the intestine 

 of sheep. Only known species: A. centripunctata 

 (Rivolta). 



Stilesia hepatica, Wollfhugel, 1903. Figs. 14-16; 



Text-fig. 1. 



Synonomy. 

 Stilesia hepatica. Wolffhiigel, 1903. 

 Stilesia hepatica, Wolfflmgel, Goiigh. 1908. 

 Stilesia sj()steclti, Fuhrmann. 1909. 



Literature. 



Wolifhilgel. — "Stilesia hej)atica nov. spec, eiii Baiidwurin aus 

 deu Gallengiiiigen von Scliafen und Ziegen Ostafrikas."' • Berliner 

 Tieriirzlichen Zeitschrift,' 1903. No. 43. 



Gougli. — " Notes on Soitth African Parasites." 'S. A. A. A. S.,' Grahams- 

 town. 1908. 



Gough. — ■' Tiie Anatomy of Stilesia c e n t r i p u n c t at a (Rivolta) ." 

 ' The Yeterinary Bacteriological Lal>oratorie« of the Transvaal." Pre- 

 toria, 1909. 



Fuhrmami. — " Cestodes," ' Schwedische Expedition nach deiu Kili- 

 mandjaro.' 19o9. 



Habitat. — Bile-ducts of sheep, goats, and wild ruminants 

 in South, East, and Central Africa. 



[Note. — Although Stilesia hepatica, Wolffhiigel, is not 

 the type species of the genus, I propose to consider it first, 

 as its anatomy is very much better known than that of 

 Stilesia globipunctata (Rivolta), the type species; the 

 anatomy of all known species of Stilesia is, as far as yet 

 worked out, very constant, only differing in minor points. As 

 a description at full length is necessary only for one of the 

 species, only the points in which the other three differ will be 

 found under their respective headings.] 



Stilesia hepatica was described in 1903 by Wolffhiigel 

 as being double-pored, and as differing chiefly in that respect 

 from Stilesia globipunctata (Rivolta). 



When working in the Transvaal I repeatedly had to deal 

 with a Stilesia infesting the bile-ducts of sheep, which I 

 identified with Stilesia hepatica, Wolffhiigel, although 



