NEW TAPEAVORMS FROM THE HYRAX. 



601 



many other—indeed the majority of — Tetracotylea, but is at most 

 once or twice bent upon itself. It becomes very narrow for a 



Text-fig. 83. 



- • 



. 1 



.§ 



Portion of medullaiy region of a proglottid of SyracotcBnia liyracis, to illustrate 

 network formed by vasa eft'erentia {v.d.). 



T. Testis, tr. Transverse muscular layer, v.v. Ventral excretor3' tube. 



Pboc. Zool. See— 1912, No. XL. 40 



