58 



MARINE AND FISHERIES 



5 GEORGE v., A. 1915 



by the formaldehyde, were determined, and then the whole evaporated to dryness. 

 The "formaldehyde" and dry weights are quoted, although I do not know in how 

 far the original weight was altered by the addition of the formaldehyde. The 

 dried material appeared to consist chiefly of crystalline salts. Some of the iodine 

 if present, may have been lost by the evaporation of what was initially a slightly 

 acid solution. 



(3) Phylum Vermes, sub-phylum Annulata, order Polychaeta 



Unfortunately, especially in view of the strikingly high figures obtained for 

 some species, I have been unable so far to have all of the species examined defi- 

 nitely identified. The worms were preserved in alcohol, the tubes air-dried. 



Species 



A Nereis 



worm 



Where 

 obtained 

 Mudge I. 



Lagoon 



A Nepthys Mudge I. 



worm 

 Diopatra (Sp. ?) Mudge I. 



Part Amount Iodine found Percent Average 



examined taken " Iodine 



Whole worm . 500 g. . 000043 g. . 009 % 



0.500 0.000035 0.007 0.008% 



« " 0.500 0.000094 0.019 



0.500 0.000082 0.016 0.017 



0.400 



0.500 



Worm 0.500 



0.500 



Horny tube 1*0.300 



Inner layer 1 0.1000 



Horny tube Jo. 500 



Outer layer \0.300 



Serpula 

 Columbiana 



Jesse I. Worm 



Calcareous 

 tube 



0.500 

 0.500 

 0.500 

 0.500 

 0.500 

 0.500 



0.000035 

 0.000124 

 0.000109 

 0.000115 

 0.001247 

 0.000411 

 0.001358 

 0.000741 



0.000192 

 0.000198 

 0.000189 

 0.000159 

 0.000156 

 0.000137 



0.009 

 0.025 

 0.022 

 0.023 

 0.416 

 0.411 

 0.272 

 0.247 



0.038 

 0.040 

 0.038 

 0.032 

 0.031 

 0.027 



0.009 



0.023 

 0.414 

 0.262 



0.039 

 0.030 



