NUDIBRANCHIATA OF THE L.M.B.C. DISTRICT. 153 
Finally, another Doris was dropped gently into a fourth 
tank containing a conger eel so as to fall in front of its 
nose, but although the fish passed close to the nudibranch 
several times while under observation it apparently took 
no notice of it, and certainly made no attempt to seize it. 
From these nine experiments there can be but little 
doubt that Doris bilamellata is distasteful to these eight 
kinds of fish. This was an unexpected result, as the Doris 
has no stinging apparatus, and certainly seems to be pro- 
tectively coloured. The distastefulness may be due either 
to the spicules in the skin or to the abundant mucus 
covering the body. 
II. February 21st, 1890. [We brought a large supply of 
Ancula cristata, and a few specimens of Dendronotus 
arborescens, Coryphella rufibranchialis, and Galvina picta, 
which we had collected at Hilbre Island the previous 
evening. Mr. Moore, Mr. R. Paden, and Woods 
were present. Notes were taken by Professor 
Herdman. | 
Mr. Moore and Professor Herdman each eat an 
Ancula. The specimen was placed alive upon the 
tongue. No stinging or other disagreeable sensation 
was perceived. It was then chewed slowly and swal- 
lowed. The taste was pleasant, and distinctly like 
that of an oyster. 
Ancula cristata. 
A. Shanny Tank :— 
Ancula 1.—Seized and rejected by a fish and then bolted 
suddenly by a second. 
2.—Seized when falling and rejected by ten fish 
in rapid succession. 
3.—Seized when falling and swallowed by a fish. 
