SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 98 



Fig. z.—Thyone rubra H. L. Clark. 



1-4, knobbed buttons from the inner layer of the integument ; 5-6, supporting 

 tables tube feet; 7-8, tables from introvert; 9, plate from tentacle; 10, knobbed 

 plate from external layer of integument, medium size. 



Scale, mm. 



100 



