REPTILIAN TAPEWORMS. 245 



fossata, whicli his figures * show to be, relatively to the latei^al 

 suckers, veiy much smaller than in Solenotmnia viperis. But he 

 is not able to be decisive as to its minute structure or nature^ 

 that is, whether sucker or i-ostellum. He quotes the opinion of 

 Monticelli t that the organ in question is a sucker, and points out 

 that Liihe + seems to regard it as a rudimentary rostellum. 



Text-fig. 46. 



- ;-^ 



i //' 



/ 



! 



X. 



B 



A 



V 



Three nearly consecutive sections through minute apical sucker of 

 Solenotania viperis. 



A, At a little distance from the surface. S. At the actual apex of the scolex. 

 C. Near to deep end of apical sucker. 



This structure is figured in Ichthyotcenia ocellata by Kraemer 

 in a memoir upon Tsenias fiom fish §, who regards it as a sucker. 



* Zioc. cit. pi. vii. figs. 1, 3, 4. 



t Boll. See. Nat. Napoli (1) v., 1891. 



X Zool. Anz. 1894. 



§ Zeitschr. wiss. Zool. liii. 1892, pi. xxviii. fig. 40. 



