The Occurrence of Risso’s Dolphin in the Shetland Seas. 197 
natwhal.!. The horny beaks of cephalopods were seen by 
M. Fischer and Mr Lee in the stomachs of the two specimens 
of Risso’s dolphin which they examined. Dr Charles Anderson 
observed that, as the fishermen opened the stomachs of this 
dolphin at Hillswick, they contained cuttle-fish; my dissec- 
tions confirmed this observation. Four of the specimens of 
the cuttle-fish obtained in the stomach of Risso’s dolphin 
were so far undigested as to enable me to count ten arms 
projecting from the ring around the mouth. Two of the arms 
were in three of the specimens much longer than the others, 
and were separated from each other by two short arms, but 
the suckers had disappeared in the digestive process. The 
remains of a pair of wings were attached to the mantle, and 
I thought that the animals were species of Loligo; but 
Mr W. E. Hoyle, to whom I referred the specimens for 
identification, regards them as the Gonatus fabric of 
Lichtenstein. Mr Thomas Anderson has recently communi- 
cated to me an interesting fact, which adds another dolphin 
to the feeders on cuttle-fish, A few months ago a large 
school of the pilot whale (Globicephalus melas) was chased 
ashore at Hillswick, and on cutting out the viscera the 
partially digested skins and numerous beaks of these cephalo- 
pods were seen in the stomachs. It was also observed that 
the shallow bay into which these dolphins were driven was 
strewn with the undigested skins of cuttle-fish, as if the 
whales in their fright had ejected a portion of the contents 
of their stomachs. 
(Some notes on the visceral anatomy of these dolphins are 
to be printed in the Journal of Anatomy and Physiology, 
January 1892.) 
1 Zoologist, April 1887 and 1889; in addition he found blood-red crusta- 
ceans, mostly Pasiphaé tarda, an abyssal form. 
