346 



Mr. H. A. Baylis on 



cuticular fimbriae. The arrangement of these fimbria) is very 

 curious. They form, in reality, a single endless chain, 

 which doubles on itself at the base of each lip, externally, and 

 passes round the base of the lip on to its inner surface. 

 Running across the lip, it emerges again at the next inter- 

 labial space on to the outer surface, where it forms another 



Fi-. 3. 



Crossophorus collaris. Part of the alimentary canal, as displayed by 

 dissection. 



C, C, caeca; Int., anterior part of intestine ; Oes., posterior part of 

 oesophagus. 



loop before passing on to the next lip. The accompanying- 

 diagram (fig. 2) may help to make this arrangement clear. 

 The fimbria) of the " collar " are of somewhat discoid shape, 

 flattened from side to side, and embedded in the cuticle in 

 such a way that their thin edges are seen in a view such as is 



