20 ART. 4. 1. IKE DA I 



is a single segmental organ (so) situated on the right side of, 

 and close to, the nerve-cord {n). It represents an elongate 

 sac, arising freely from the body-wall. 



This species seems to be most closely allied to Phascolion 

 lucifugax Sel. & De Man, a young specimen of which is said to 

 have been obtained by Hilgendorf in this country. The 

 two species resemble each other especially in having large papillae 

 in a zone around the middle region of the body proper. But 

 the present species certainly differs from Phascolion lucifugax in 

 possessing differently shaped papilla and in being devoid of 

 hooks on the introvert. 



Gmius PHYMOSOMA. 



PHYMOSOMA SCOLOPS, Sel. & De Man. 



Selenka, (28), 1883, 2^. 75. 



From Selenka's description the specific character of this 

 species may be summed up as follows : 



Entire body-length 4 cm. on an average. Color reddish 

 brown, often yellowish brown. Introvert bears on the dorsal 

 side numerous pigmented bands of a reddish brown or brownish 

 black color. Papilhe black, tolerably large, but little elevated 

 in the middle region of the body proper ; they consist of brown 

 plates which become gradually smaller towards the peripheral 



