928 REPORT 01" COMMISSIONER OF FISH A2^D FISHERIES. [50] 



EXPLANATION OF PLATE II. 



Fig. 1. — Tklmatodrili's Vejdovskyi. 



Fig. 1 k. — The cephalic ganglion and the ventral nerve cord. 



J^iG. 2. — Spirospkrma ferox. 



Fig. 2 a. — The worni, ntitnral size. 



2 i. — The front part of the worm, highly magnified. 

 2 c. — A part of the epithelium, showing the elevated cells. 

 2 d. — The same, side view. 



2 c. — One of the receptacles in the ninth setigeroiis segment. • 

 2 /. — The free end of one of the ovaries. 

 2^. — One of the segmental organs. At * is seen an enlarged chamber in the main 

 duct. 



