No. 418.] NOTES ON LIVING NAUTILUS. 823 
the fishermen. It happened, therefore, that at the time of my 
visit, in January and February, I was able to get but few 
specimens. 
The fishing, as has already been stated, is carried on by 
means of a fish-trap, a sketch of which is given in Fig. 3. It 
is a cage-like, flattened affair, about six feet in length, con- 
structed of strips of bamboo woven in coarse mesh. At one 
end there is a funnel-shaped insinking. through which the 
animals gain entrance. The funnel operates somewhat on the 
plan of the mouth of a rat live-trap, the animal pushing through 
it, not indeed at the pointed end, but on one side (the median 
ventral line, to borrow a phrase). Intercrossing strips then 
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Fic. 3. — The Negros fish-cage, or “ bo-bo," in which Nautilus is taken. 
close elastically and prevent egress. The cage stands upon 
stout strips of bamboo, to which weights are usually attached. 
Bait is hung from the roof supports at various points. This 
consists of whole fowls, viscera or joints of kid, or the remains 
of dogs or cats when the latter attractions can be found. 
Freshness of bait is not regarded as a sine qua mon. The 
cage “bo-bo,” as it is called in Viscaya, is attached, in the 
Way shown in the figure, by a strip of rattan, to the main line, 
also of rattan, which connects it with the float. The latter 
consists usually of several joints of bamboo. As to the iat 
of fishing, it appears that the bo-bo is put down at a favorable 
Opportunity, ánd is allowed to remain for several days, often 
for a week or longer. At San Juan I found that it was 
Customary to examine the cages on stated days, weekly or 
