417] AX OPLOCEPH ALIDAD— DOUTHITT 67 



tid, divided into two nearly separated lobes, which are 

 connected by a slender neck. Host, Cercopithecus callitri- 



chus. (See Beddard, 1911.) _B. cercopitheci 



Genital pores irregularly alternate. Ovary not bilobed 15 



15. Strobila 14 cm. or more long. Receptaculum seminis globular. 



Eggs enter uterus in 350th segment. Host, Mycetes niger, 

 Paraguay. (See Meyner, 1895, or Stiles, 1896.) 



B. mucronata 



Strobila 84 mm. long. Receptaculum seminis oval. Eggs enter 

 uterus in 130th segment. Host, Macacus radiatus. (See 

 Meyner, 1895, and Stiles, 1896.) _..#. conferta 



Strobila 51 cm. long. Cirrus pouch of ordinary appearance. 

 Host, Macacus cynomolgus, India. (See von Linstow, 

 1905.) „...B. poly orchis 



16. More than 21 cm. long. Sexually mature proglottids 26 times 



as broad as long, ripe proglottids 30 times as broad as long. 

 Cortical layer exceptionally thick, in young proglottids 

 forming five-sixth of total thickness, in older proglottids 

 about three-fourths of thickness. Female glands far from 

 median line. Testes numbering about 110. Host, Phalan- 

 gista sp., New Guinea. Not adequately described. (See 



von Janicki, 1905.) _ B. rigida 



Proglottids not so short. Cortical layer of ordinary thickness 17 



17. Cirrus spiny 18 



Cirrus not spiny 19 



18. Length, 30 to 60 cm. Number of proglottids, 600 to 850. Eggs 



pass into uterus in 300th proglottid. Testes 70 to 90. Ovary 

 extending past the median line of the proglottid. Host, 

 Galeopithecus volans, Sumatra. (See Bourquin, 1905.) 



B. elongata 

 Length, 2 to 6 cm. Number of proglottids, 80 to 200. Genital 

 pores approach regular alternation. Testes 50 to 70. Ovary 

 distant by more than twice its width from the median line. 

 Host, Galeopithicus volans, East Indies, Sumatra, Java. 

 (See Bourqin, 1905.) B. plastica 



19. Vitelline gland posterior to the ovary. Length, 14 cm. Num- 



ber of testes 90, extending to the distal end of the proglot- 

 tid. Diameter of ovary, 0.95 mm., not greatly displaced 

 from the median line, its mesial edge extending across the 

 median line. Hosts, doves and pigeons. (See Fuhrmann, 



1902.) B. delafondi 



Vitelline gland not posterior to the ovary 20 



