REPORT ON THE POLYZOA. VU 



Station 172, lat. 20° 58' S., long. 175° 9' W., off Nukalofa, Tongatabu ; 18 fathoms; 

 coral mud. 



Idmonea radians, F. 



Station 186, lat. 10° 30' S., long. 142° 18' E., off Cape York ; 8 fathoms ; coral mud. 



Crista denticulata, A, B. | Idmonea ehoracensis. 



Amathia connexa. 



E.— PHILIPPINE OR JAPANESE REGION. 



Off Zebu, Philippine Islands. 



Crisia denticulata, var. gracilis. 



F.— NORTH PACIFIC REGION. 



Off Honolulu, Sandwich Islands ; 20 to 40 fathoms. 



Idmonea radians, D. 



G. -SOUTH PACIFIC REGION. 



None. 



Measurements. 



The metrical system is now so generally in use for scientific purposes that I have 

 adopted it for all the measurements of the magnified figures, and they are accordingly 

 given in millimetres or tenths of a millimetre. The figures are nearlj^ all enlarged by 

 25 or 50 diameters, and scales are appended to all the plates. 



