OBJECTS CARRIED BY TI£E SEA-URCHIN. 



443 



SEA-URCHIN OF 10 MM. WEIGHING Q'7 GR. 



No. 



1 

 2 

 3 

 4 

 5 

 6 

 7 

 8 

 9 



10 

 11 

 12 

 13 

 14 

 15 

 16 

 17 



Objects carried. 



1 



14 



4 



4 



10 



9 



21 



15 



12 



10 



12 



9 



4 



9 



13 



8 



11 



pebble 

 pebbles 



piece of seaweed 

 piece of seaweed 



piece of seaweed 



Weights 



of 

 objects. 



Calculated pro- 

 portion between 

 weight of objects 

 and weight of 

 animal. 



GE. 



0-1 



1-1 



0-5 

 0-3 

 1-1 

 1-0 



1-8 

 1-9 

 1-2 

 1-0 

 2-4 

 1-0 

 0-3 

 1-2 

 1-8 

 1-3 

 1-0 



0-142 

 1-571 

 0-714 

 0-428 

 1-571 

 1-428 

 2-571 

 2-714 

 1-714 

 1-428 

 3-428 

 1-428 

 0-428 

 1-714 

 2-571 

 1-857 

 1-428 



Greatest weight 

 carried, 2-4 gr. 



Least weight 

 carried, 0-1. 



Average weight 

 carried, 1-117. 



Average proportion, 

 1-596. 



SEA-URCHIN OP 15 MM. WEIGHING 1* 7 GR. 



1 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



12 



13 



14 



15 



16 



4 pebbles 



2 „ 



1 pebble 



5 pebbles , 



5 „ 



Empty shell of Nassa 



8 pebbles 



7 



10 



fragment of seaweed 



Jl )! 



3 

 3 

 5 



Fragment of seaweed 

 13 pebbles 



2-5 

 0-7 

 0-1 

 0-8 

 0-6 

 0-8 



1-6 

 0-2 

 0-2 

 0-7 



1-5 



1-470 

 0-411 

 0-058 

 0-470 

 0-352 

 0-470 



0-941 

 0-117 

 0-117 

 0-411 



0-882 



2 m 2 



