225 Part ITI. —Twenty-first Annual Report 
Raia batts, Lin. 
A specimen of Grey Skate, measuring sixteen-and-a-quarter inches 
across the pectoral fins, had in its stomach the remains of Crangon 
allmanni, but apparently nothing else. 
Raia fullonica, Lin. 
A specimen of Fuller’s Ray, measuring fifteen-and-a-half inches across 
the pectoral fins, had also been feeding on Crustacea, but the species 
could not be determined. 
Raia radiata, Donovan. 
The stomach of a small Starry Ray was found to contain only the 
remains of fish too imperfect for identification. 
The three fishes referred to above, which had been obtained from a 
trawling steamer working in the North Sea, were examined in March 
1902. 
Squalis acanthias, Lin. 
A considerable number of Picked Dog-fishes have been examined for 
ecto- and ento- parasites, and as their stomachs were also examined, I 
append some observations on the food observed in the stomachs of these 
specimens. The number of specimens referred to here is twenty-two. 
They were captured in the North Sea, and forwarded to the Laboratory 
during the month of March 1902. Eight were examined on the 7th, 
four on the 14th, and ten on the 26th of the month. 
SIZE OF THE 
x; CONTENTS OF THE STOMACH. 
Fisu. 
3 feet 64 inches. | Nothing that could be identified. 
See On Te ts Only the remains of round fishes. 
EN aoe, fs A moderately large Herring. 
Fist Ow 7a, Only two small Dabs. 
rags LOR yak The food was very much digested, but consisted apparently 
of fishes, as the two ear-stones of a small Whiting were 
obtained. 
OTe HO Ate Part of a full-grown Herring was observed. 
Limb ge) a Part of a young Coal-fish. 
SD) oisu lens wees The remains of fishes, but the species was not determined. 
Dare 55 The remains of one or two Long Rough Dabs. 
ARE oy aa ati The remains of fishes, but the species doubtful. 
DLO a The contents of this stomach was similar to the last. 
Bi ike AB Contents similar to the last. 
Dy sap bOee Gihs Fragments of two Gadus esmarkit. 
25 Ul es Two nearly whole Gadus esmarkit and remains of others, 
also a portion of the testes of a moderately large Gadoid. 
2%, 6 > The only objects in this stomach that could be distinguished 
were a few fish eggs. 
2eiaas i One small Gadus esmarkit and the remains of another. 
Dy yay AL Fe A Herring about 93 inches long. 
Be pone Fragments of a Lemon Sole about 8 or 9 inches long, a 
Gadoid about 64 inches, and the remains of a fish, not 
determined, about 9 or 10 inches long. 
a As Fragments of a moderately large Herring and a small 
Gadoid. 
5 ry se OE mens Remains of a Gadoid and a Sand-eel. 
AR i Fragments of a moderately large Herring, and some other 
fish remains. 
Zoi, Saud Fragments of a large Herring, and other fish remains. 
