56 



MARINE AND FISHERIES 



5 GEORGE v., A. 1915 



iii. Family Rhodomeliaceae 



Samples of a number of specimens of Rhodomela larix were examined, the 

 whole plant being taken. 



Species 

 Rhodomela larix 



Where obtained 

 Breakwater I. 



Amount Iodine Per cent 



taken found Iodine 



0.500 g. 0.000073 g. 0.014% 



iv. Order Delesseriaceae 



Samples from several plants in each case. 



Species 



Nitophyllum 

 ruprechteanum 



Where obtained 

 False Narrows 



Nitophyllum violaceum Breakwater I. 



Amount Iodine Per cent 



taken found Iodine 



. 1000 g. . 000155 g. . 155% 

 0.1500 0.000241 0.161 



Mean 0.158% 

 1.500 0.000636 0.127 



V. Family Cryptonemiaceae 



Samples from a number of plants in each case. 



Species 



Prionitis 



lyallii 

 Corallina 



officinalis 



Where obtained 



Departure Bay 



Breakwater I., 

 above low water 



Amount Iodine found Percent Average 



taken Iodine 



0.500 g. 0.000216 g. 0.043% 0.043% 



0.500 

 0.500 



0.000028 

 0.000024 



0.006 



0.005 0.005 



vi. Family Bangiaceae 



The fronds of single plants of Porphyra vulgaris were examined. 



Species 



Where obtained 



Amount Iodine found Pec cent 

 taken Iodine 



Porphyra 

 vulgaris 



Jesse I., just below 

 low water mark. 



0.500 g. 0.000057 0.011% 



0.500 

 0.500 



Breakwater I., dredged . 500 

 Protection I. 0.500 



0.000026 

 0.000030 



0.000056 

 0.000047 



0.005 

 0.006 



Mean 0.005% 

 0.011 

 0.009 



