502 



Dr. II. A. Baylis on 



r. sem'Ueves the alio stood out as prominent triangular .struc- 

 tures in the section.'*, in P. cnsicawiutum no such structures 



Fig;. 5. 



Fi- 6. 



■oes. 



/nt. 



- -int. 



Y\c. 5, — Torrocacum semiteres. Posterior portion of cesophajrus and 

 anterior portion of intestine, c, intestinal cfucuni ; m<., in- 

 testine ; oes., asophagus ; v., ventriculus. 



rig. 6. — Porrocamm ensicawlatum , Posterior portion of cesopbngus and 

 anterior portion of inte.'tin^. Lettering as in tig. o (in this Ciiae 

 the ca3cura (f.) is rudimentary). 



could be .seen. In P. ensiraudaUan also the intestinal caecum 

 (fig. 6, c.) is usually quite rudimentary, and never appears to 



