Plate XXIII. 



Rhabdocalyphis capillatus Ij. P. 27G. 



(AU figures from sections stained with borax-carmine). 



Fig. IS. Surface view of ectosome. 300 x . 



Fig. 19. A small part of the subdermal region. Below, blind end of a 



ciiamber and a small (yuimg) oxyhexaster. 300 x . 

 Fig. 20. A small part of chamber wall. Below, three archreocytes. 1000 x . 

 Fig. 21. Thesocytes of varied appearance. 1000 x . 

 Fig. 22. Peripheral i>art of a section vertical to the surfaces. 30 x . 



Above, dermal surface ; s. s., subdermal space ; in., incurrent 



canal ; ex., excurrent canal. 

 Fig. 23. Part of a paratangential section. 30 x . in., intercommunicating 



incurrent spaces ; ex., excurrent canal. 

 Fig. 24. Gastral part of a section vertical to the surfaces. 30 x . Below, 



the gastral surface. Lettering; as in the above figure. 



