942 REPOET OF COMMISSIONEE OF FISH AND FISHEKIES. [64] 



EXPLANATION OF PLATE IX. 



Fig. 8.— Limnodkilus ornatus. 



Fig. 8 a. — The worm, natural size. 



8 &. — One of the spines, magnified. 



8 c. — The cephalic ganglion. 



8 d— Efferent duct, atrium, prostata, penis, penis sheath, and oviduct. Round 

 the upper end of the penis sheath is seen a crown of starlike concre- 

 tions. 



8 e. — One of the receptacles. 



8 /.—Another slight]y modified receptacle, showing the striated surface. 



8 g. — One of the ovaries. 



8 h. — A part of the tube of the segmental organ. 



