64 BULLETIN 69, UNITED STATES NATIONAL MUSEUM. 



Genus MONIEZIA Blanchard, 1891. 



Paronia Diamare, 1900 (type, P. carrinoi Diamare, 1900; see Fuhrmann, 

 1907a, p. 295). 



Generic diagnosis. — Anoplocephalinse : Segments generally l^roader 

 than long. Two sets of reproductive organs in each segment with 

 two reticulate uteri which may become more or less fused with one 

 another in the median line. Genital pores bilateral. Genital canals 

 cross on dorsal side of longitudinal excretory vessels and nerves. 

 Interproglottidal glands generally present. Vagina ventral and 

 cirrus dorsal on right side of segment ; the reverse on left side. Eggs 

 with three shells and with well-developed pj^riform apparatus, the 

 horns of which generally end in a disk, or (in species from birds) 

 without pyriform apparatus. Adults in mammals and birds. 



Type-species. — Moniezia expansa (Rudolphi, 1810) Blanchard, 

 1891. 



Genus SCHIZOTyENIA Janicki, 1904. 



Generic diagnosis. — Anoplocephalinse : Segments broader than 

 long. A single set of reproductive organs in each segment. Genital 

 pores alternate. Genital canals pass dorsal of the longitudinal excre- 

 tory vessels and nerve. Testicles near the posterior border of the 

 segment in a group extending from the longitudinal excretory vessels 

 of one side to those of the other. Cirrus pouch ver^^ muscular. Fe- 

 male glands almost median, their longitudinal axis but slightly 

 displaced toward the genital pore. Extreme lateral portions of the 

 uterus become functional early as sac-like enlargements; remainder 

 of uterus develops as a complicated system of irregular lacunae. 

 Eggs with pyriform apparatus. Adults in mammals. 



Type-species. — Taenia decrescens Diesing, 1856 (not T. decrescens 

 Creplin, 1849), 



Genus APORINA Fuhrmann, 1902. 



Generic diagnosis. — Anoplocephalinse : A single set of reproductive 

 organs in each segment. Genital pores (?) absent. Female glands 

 near the side toM^ard which the vagina runs. Testicles dorsal, very 

 numerous, mostly in the lateral portions of the segment on both sides 

 of the longitudinal excretory vessels, extending from the anterior to 

 the posterior border of the segment; very few in the median field. 

 Vagina and rudimentary cirrus pouch ( ? without external openings), 

 irregularly alternate on right or left side of the strobila, pass dorsal 

 of the excretory vessels and unite with one another in the lateral field 

 of the segment. Uterus median, bilobed, with a prolongation pos- 

 teriorly on each side, which crosses the longitudinal excretory vessels. 



