72 ILLINOIS BIOLOGICAL MONOGRAPHS [422 



median part of the field. Host, Lepus nigricollis. Local- 

 ity, Nedunkeni. Inadequately described. (See von Lin- 

 stow, 1906.) C. bursaria 



Length, 180 mm. Testes very numerous, mostly dorsal, 88/* 

 long by 53/x broad. Cirrus spiny. Each ovary occupies 

 one-seventh of the cross diameter of the proglottid. Host, 

 Lagidium peruanum cuvieri. Locality, Peru. Not well 

 known. (See von Linstow, 1904.) C. quadrata 



Length, 40 mm. Number of proglottids, about 150. Dorsal 

 canal lateral. Host, Oeomys bursarius, Iowa. More thor- 

 ough description needed. (See Stiles, 1896.) „C. praecocquis 



38. Length, 80 cm. 500 to 750 proglottids. 60 to 80 testes in each 



group. With pyriform body. Hosts, Lepus cuniculus and 

 Lepus cuniculus domesticus. Distribution, Europe. Not 

 well known. (See Stiles, 1896.) C. ctenoides 



Length, 8 to 9 cm. Number of proglottids, 250 to 350. Testes 

 about 15 or 20 on each side, all dorsal. With pyriform 

 body. (See Zchokke, 1907, under name Moniezia diaphana; 

 and present paper. ) C. diaphana 



Length, 13 to 16 cm. Three longitudinal excretory ducts, true 

 dorsal duct outside. Testes 30 on each side, extending thru 

 medullary portion. No pyriform body. (See von Janicki, 

 1905.) C. zschokkei 



39. Diameter of scolex, 1.5 mm. Cirrus pouch 600/t lond and 20//. 



in diameter. Testes about 110. Host, Rhea americana, of 

 South America. Description very incomplete. (See Fuhr- 



mann, 1904.) C. rhea 



With prostate cells on vas deferens 40 



Without prostate cells on vas deferens 41 



40. Length, 10 cm. Diameter of scolex, 230/*. Testes about 200, 



dorsal. Cirrus pouch 520/t long and 20/* wide. Host, 

 Stringops habroptilus. Description very incomplete. (See 



Fuhrmann, 1904. ) - C. psittacea 



Length, 15 to 22 cm. Diameter of scolex, 800/*. Testes 120 to 

 140, confined to the region between the ovaries. Cirrus 

 pouch 1 mm. long, 120/t in diameter. Host, Anas sp. (See 

 Fuhrmann, 1897. ) C. avicolae 



41. Dorsal excretory vessel lateral to ventral. Length, 5 cm. Cir- 



rus pouch 300/t long and 40/* broad. Hosts, Carpophaga 

 vanwycki and Ptilopus jambu. Localities, Kara via (New 

 Britain) and Sumatra. (See Fuhrmann, 1902; and Ship- 

 ley, 1900.) C. kuvaria 



