NUDIBRANCHIATA OF THE L.M.B.C. DISTRICT. 155 
Ancula 1.—Seized at once by crab but eaten very slowly. 
Pulled to pieces by third maxillipedes, and 
apparently only some parts eaten. 
2.—Taken no notice of. 
3.—Taken up by chela, then dropped and left. 
4.—Apparently not noticed by crabs. 
The three last specimens of Ancula were found alive and 
fully expanded next day, and crawled about the two crab 
tanks undisturbed for some time. 
Finally a few specimens of Ancula were taken to the 
anemone tank and allowed to drop upon the fully expanded 
tentacles of a white and a pink Actznoloba dranthus ; they 
were not swallowed in either case, but after lying for some 
time were allowed to fall off the tentacles. 
In all, then, Ancula was rejected by fifty-three animals 
and taken by four. These experiments gave us the dis- 
tinct impression that Ancula was distasteful to the 
animals tried, although we did not at that time under- 
stand why and had expected to get a contrary result. 
Dendronotus arborescens. 
A. Shanny Tank :— 
Dendronotus 1.—Seized at once by shanny and carried off 
to back of tank. Shortly afterwards two 
shannies were found fighting over it, each 
having hold of an end, as they do with a 
large worm, finally they each ate a part of 
the Dendronotus. 
B. Flat Fish Tank :— 
Dendronotus 1.—Tried and rejected by brill and young 
cod. Then seized by plaice and kept in 
mouth for a long time, during which it was 
pursued by other fish. 
