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REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



[76] 



EXPLANATION OF PLATE XV. 



Fig. 13.— Camptodrilus igneus. 



Fig. 13 a. — The wormj natural size. 



13 h. — The front part of the nervous system, seen from above. 



13 c. — ^Efferent duct, atrium, prostata, penis, penis sheath, oviduct, and spira 



muscles. 

 13 d. — One of the receptacles. 

 13 e. — One of the segmental organs. 

 13 /. — ^Perigastric cells, of different form. 



