AVIAN CESiODES. 431 



(3-4S mm.) posterior region. The most posterior segments are 

 hardly, if at all, longer than wide. There is no neck. 



The figure given by Chapman * of the scolex and anterior 

 segments is quite in accord with the view that the species 

 described by himself is that which I regard here as " Tcenia 

 taiiricollis." He does not, however, figure or make any reference 

 to hooks upon the rostellum (or, for the matter of that, else- 

 where). Monticellit, however, in his fuller description, found 



Text-figure 1. 



S\ 



.J 



Scolex and anterior segments of Cliapmania tauricollis. 

 s. Sucker. 



the hooks, which he described as " minutissimi uncini." It 

 would not be difficult to miss these hooks ; I find from a note 

 made by myself upon the living worm that no hooks were seen. 

 I have, however, closely examined the scolices of two preserved 

 examples — the only scolices which I possess — and find traces of 

 the hooks in one individual only. The other specimen was 



* Proc. Acad. Sci. Philadelphia, 1876, p. 14. 

 t Nat. Sicil. xii. 1892-3, p. 208. 



