40 



Art. 2.— T. Kaburaki: 



oV 



- -t 



in the width of that tract more than one eye and onl}^ occasionally 

 a single eye. Tiie tract may extend posteriorly for a length equal 

 to about one-eighth or one-sixth the entire length of the body. 



Body Wall. — The epider- 

 mis consists, as usual, of 

 ciliated cuboidal or cylindrical 

 cells, Avhich are much higher 

 on the dorsal than on the ven- 

 tral surface. M'edged in be- 

 tween tlie epidermic cells are 

 minute spindle-like rhabdites, 

 which are derived from their 

 mother-cells, widely scattered 

 in the parenchyma of the body. 

 In addition to the glands open- 

 ing submarginallv on the 



ventral surface there are some 

 glands which open in scattered 

 distribution all over the entire 

 surface of the body. 



The dermal musculature 

 is well developed and com- 

 posed of thi'ee layers of outer 

 circular, middle transverse and 

 inner longitudinal fibres. The 

 innermost laA^er is the most 

 developed of all tlie layers and 

 is associated in distinct bands 

 in the usual manner. 



T) igest ive System . — T 1 1 e 

 mouth-opening is situated at 

 about the hind end of the 

 middle third of the body. 

 The pharynx, cylindrical in 

 shape, is inserted at about the middle of the boby-length. The 

 anterior gat trunk gives ofï 6-9 pairs of lateral branches; each 



p4 



$i'-- 



SI' 



- -ad 



Text G.g. 12. Diagrammatic repre- 

 sentation of the organization of Poli/- 

 celis auricuJata I.j. et Kab., as seen from 

 the dorsal side. 

 Index letters as in text figs. 2, 5 and 6. 



