[duff] THE BEAVER FLUKE 97 



(38) Mace, E. Recherches anatomiques sur la grande douve de foie. 

 Paris 1881, p. 91. (Quoted from Braun). 



(39) Wright, R. R. & Macallum, A. B. L c. p. 29. 



(40) Braun, M. 1. c. p. 619. 



Explanation of Illustrations. 



c. Wall of cirrus sac. 

 cm. Circular muscles, 

 cut. Outer layer of cuticle, 

 d.m. Diagonal muscles. 



d. ejac. Ductus ejaculatorius. 

 e.b. Excretory bladder, 

 e.p. Excretory pore. 



ex. Branching extensions of cell. 



g.c. Giant cell. 



g.p. Genital pore. 



g.s. Genital sinus. 



int. Intestine. 



L.C. Laurer's canal. 



l.m. Longitudinal muscles. 



m. Mouth. 



n. Nucleolus. 



n.m. Nuclear membrane. 



n.c. Nerve commissure. 



n.g. Nerve ganglion. 



oes. Oesophagus. 



oes. g. Nucleated cells around oesophagus. 



o.l.c. External opening of Laurer's canal. 



oo. Ootype. 



ov. Ovary. 



ov.d. Oviduct. 



par. Parenchyma. 



par.m. Parenchyma muscle. 



ph. Pharynx. 



ph.d. Diverticulum of pharynx. 



p.s. Posterior sucker. 



pr.g. Prostate gland. 



r.m. Radial muscle of sucker. 



s.g. Shell gland. 



s.cut. Striated inner cuticle. 



sp.m. Sphincter muscle. 



sub.c. Subcuticular cells. 



