60 
Subfamily DAYAIXEIXJE Braun, 1900. 
Subfamily diagnosis. — Tteniidte (p. 24) : Rostellum and suckers armed with hooks. 
Genital pores irregularly alternate or unilateral. Genital organs in single series. 
Eggs usually in egg-capsules. Parasites of mammals and birds. 
Type genus. — Davainea Blanchard, 1S91. 
Of the genera Davciinea , Eehinocotyle , and Ophryocotyle , only Davainea occurs in 
man. 
Fig. 101 . — Davainea proglottina, type of genus, enlarged 95 times to show the anatomy: cir. p., cirrus 
pouch: ov., ovary; r. s.. receptaculum seminis; t., testicles; ra.. vagina: v. g.. vitellogene gland. 
(After Blanchard, !S91t, 430, fig. 4. ) 
Fig. 102.-— A portion of the double row of hooks on the rostellum of Davainea salmoni of rabbits. 
Greatly enlarged. (After Stiles, 1896n, pi. 23, fig. 6.) 
