423] ANOPLOCEPHALIDJE—DOUTHITT ft 



Dorsal excretory duct median to ventral „ 42 



42. Testes confined to the region between the ovaries. Uterus in 



anlage crosses excretory ducts dorsally. Excretory system 

 simple. Cirrus pouch 400/x long. Hosts, Sylvilagus flori- 

 danus and S. palustris, North America. (See Stiles, 1896; 



Lyman, 1902; and present paper.) C. variabilis 



Testes extending laterad beyond the ovaries. Uterus in anlage 

 confined to the median field. Fifteen or more large, promi- 

 nent ducts crossing the proglottid lengthwise and connect- 

 ing the transverse commissures of the excretory ducts with 

 each other _ 43 



43. Cirrus pouch about 1 mm. long, extending some distance mediad 



of the longitudinal excretory canals. Testes 100 to 125. 

 Hosts, Lepus timidus, L. variabilis, and L. calif ornicus, 

 Europe and North America. (See Stiles, 1896; Lyman, 



1902; present paper, and others.) C. pectinata 



Cirrus pouch not over 640/u. long, often much shorter. Testes 

 60 to 80. Hosts, Sylvilagus floridanus and 8. pinetis. (See 

 Hall, 1908, under name C. mosaica; and present paper.) 



C. perplexa 



Genus Moniezia (Syn. partim: Paronia) 



44. Description not accessible. — Moniezia beauforti von Janicki 



1906b. Host, Cyclopsittacus dioptahlmus, in Sekanto. 



M. beauforti 



Length, 20-27 cm. Host, Macropus giganteus, Australia. Poorly 

 known, position uncertain. (See R. Blanchard, 1891; or 

 Dujardin, 1845 :593.) - M. f estiva 



Uterus tubular or slightly branched, not reticular, confined to 

 median field in anlage. In its final stages saccular, or with 

 anterior and posterior outpocketings. Embryos without 

 pyriform apparatus. Dorsal excretory duct dorsal to ven- 

 tral (not known in M. variabilis).. 45 



Uterus a very complicated, finely meshed reticulum, usually ,if 

 not always, crossing the excretory ducts dorsally in anlage. 

 Embryos usually with pyriform apparatus, the horns of 

 which generally end in a disk. Dorsal excretory duct me- 

 dian to ventral _ - _ 47 



45. Uterus in anlage inverted U-shaped, embracing ovary „ 46 



Uterus in anlage a transverse bar, with a few simple branches 



at its median end. Communication of ripe uteri of two 



