NO. 1105. PROCEEDINGS OF THE NATIONAL MUSEUM. 215 



7. Genital pore.s single 8 



Genital pores double; vagina ventral of cirrus pouch on both sides of the seg- 

 ment CiUoUmia (p. 170), 19 



8. Pores unilateral; testicles unilateral, or nearly so, in median field. 



Aiwplocephala (p. 150), 11 



Pores regularly or irregularly alternate ; testicles extend across th(? median field 



(not shown as yet for B. studeri and B. satyrl) Bertia (p. IGO), 14 



9. Genital pores irregularly alternate with marked tendency to unilaterality ; 



pedunculated round or elongate prostatic gland near ventral canal on pore side 

 of segment; dorsal canal lies dorsal to dorso ( ? lateral) of ventral canal. 



Andrya (p. 154), 26 



Genital pores double; pedunculated prostatic gland absent; vagina ventral of right 



cirrus and dorsal of left cirrus Moniezia.^ 



10. Uterus single, transverse, hut undulate, with aseonspore or cornucopia-lili: egg pouches; 



genital pores single or double; testicles form a band in median field or arc divided 



into two lateral groups, one in each lateral field Thysanosoma.^ 



Uterus single and transverse, or double, being represented by a cornucopia-like pouch 

 on each side of the segment; genital pores irregularly alternate; testicles in two lat- 

 eral groups and absent from median line Stilesia.^ 



Anoplocephala. 



11. Head with posterior lobes; body may attain S to 25 mm. long by 3 to 15 mm. wide; 



head 2 to 3 mm. broad. Host: Horse ( Equns caballus) A.perfoliata. 



Head without posterior lobes 12 



12. Head 4 to 6 mm. broad; strobila 9 to SO cm. long by 5 to 20 mm. broad. Host: Horse 



(Equns caballus) and Mule (Equus asinus X caballus) A.plicata.* 



Head less than 1 mm. broad 13 



13. Strobila 10 mm. long by 1.5 to 2.25 mm. broad; contains 10 to 28 segments; 



distal segments may become nearly .as long as broad ; genital glands confined 

 to proximal third of worm; testicles 15 to 30 in each segment; cirrus pouch 

 0.48 mm. long. Host: European rabbit {Lepus cuniculus) and Mountain hare 

 {L. variabilis) A. wimerosa. 



Strobila attains 6 to 30 mm. long by 4 to 6 mm. broad; 35 to 53 segments present, the 

 distal 4 to 8 completely filled with ova; testicles 60 to 100 in each segment; cirrus 

 pouch attains O.S mm. in length. Host: Horse (Equus caballus). 



A. mamillana (p. 1.53)- 



Strobila 10 to IG cm. long by 6 to S mm. broad; GO to SO testicles present. Host: 

 Arctomys, sp A. transversaria (p. 154). 



1 1891, Moniezia, R. Blanchard, M^m. Soc. zool. France, IV, p, 187. Type, Teenia 

 expansa, Rudolphi, 1810. 



For the species of this genus see Stiles & Hassall, 1893, A Revision of the Adult 

 Cestodes of Cattle, Sheep, and Allied Animals, Bull. 4, Bureau of Animal Industry, 

 U. S. Dept. Agriculture. 



^1835, Thysanosoma, Diesing, Med. Jahrb. d. ost. Staat. n. Folge, VII, pp. 105-111, 

 pi. III. Type, Thysanosoma actinioides, Diesing, 1835. 



For the species of this genus see Stiles in Stiles »& Hassall, 1893, Bull. 4, Bureau 

 of Animal Industry. 



3 1893, Stilesia, Railliet, Traite de Zool. m(^d. et agric, I, pp. 277-278. Type, T(enia 

 globipunctata, Rivolta, 1874. 



For the species of this genus see Stiles in Stiles & Hassall, 1893. Bull. 4, Bureau 

 of Animal Industry. 



■•Doubtful wliether this siiecific term should stand, as it is antedated by equina, 

 1781, and magna, 1789. 



