F. J. Meggitt 
389 
REFERENCES. 
(1) Foster, W. D. (1915). Two New Cases of Polyradiate Cestodes, with a Sum¬ 
mary of the Cases already known. Journ. of Parasit. n. 7-19. 
(2) Neumann, L. G. (1890). A propos d’un Taenia triedre de l’espece Taenia 
perfoliata Goeze. Revue veter. xv. 478. 
EXPLANATION OF PLATE XVIII. 
REFERENCE LETTERS. 
a.v.d. anterior vas deferens; a.v.s. outer anterior vcsicula seminalis; a.'v.'s.' iimer 
anterior vesicula seminalis; c.d. common male duct; cir. cirrus; c.s. cirrus sac; c.sp. 
central space; cj.s. genital sinus; l.d.v. longitudinal dorsal excretory vessel; ooc. ooclapt; 
ov. ovary; ovd. oviduct; p.v.s. outer posterior vesicula seminalis; p.'v.'s.' inner posterior 
vesicula seminalis; r.s. receptaculum seminis; s , sucker; sli.gl. shell-gland; ut. uterus; 
vcig. vagina; y.d. vitelline duct; y.g. vitelline gland. 
a, b, b', b", c, d'", e, g, h, lx., t.c. (for explanation see text). 
Fig. 1. 
Fig.'2. 
Fig. 3. 
Fig. 4. 
Fig. 5. 
Fig. 6. 
Fig. 7. 
Fig. 8. 
Scolex. 
Transverse section at posterior third of scolex. 
Male genital ducts, seen anteriorly. 
Excretory system in neck. 
Excretory system in anterior third of scolex. 
Male genital ducts, seen posteriorly. 
Transverse section of a proglottis. 
Female genital ducts. 
