thp: gephyrea of japan. do 



Tiie internal anatomy of the present «pecies may he briefly 

 outlined as follows : 



The longitudinal inuscle is quite continuous. The retractor 

 muscle arises with two roots at the beginning of the posterior 

 fifth of the body j^rojier. Double intestinal spirals number about 

 12. Spindle muscle fixed at both ends. Only one fixing muscle 

 attached to the beginning of rectum. Segmental organs connected 

 with the body- wall along their whole length by mesentery. No 

 rectal gland. Two distinct eye-spots are present on the ganglion. 



Gejius DENDROSTOMA. 



DENDROSTOMA BLANDUM, Selenka à De Max. 



(Figs. 14, 90 & 91). 



Selenka, (28), 1883, p. 85. 



The main characters of this species are summed up in the 

 following extract from Selenka's description : 



Body of a stunted form ; introvert one-third as long as body 

 proper. Color brownish or reddish gray. On the middle region 

 of the introvert are scattered numerous large and sharply pointed 

 black hooks 0.4iu/ii. in height. Papillae in the middle region of 

 the body proper, low, oval, 0.07-0.09 m})i. in diameter ; in the 



