George: The Mites known as Rhagidia. 197 
Japan, Kerguelen, Chile, and the Arctic regions.’ He also 
gives a figure of Rhagidia pallida Banks. This figure hardly 
looks like the specimen I have met with, which may therefore 
be a different species. The first specimen I ever saw, was 
sent to me with other mites, by Mr. Evans, of Edinburgh, in 
January, 1909. Since that time I have had two or three 
specimens from Mr. Winter, of Shipley, Yorkshire, who found | 
them in some numbers. Unfortunately all the specimens I have 
received have been in preservative solutions, and the mites 
are very delicate and easily injured, and from these Mr. Soar 
made the accompanying drawings. I had hoped to have 
seen a living specimen so as to observe its colour and general 
appearance. However, I have not yet had that pleasure. 
The first thing that strikes one is the large size of the power- 
ful chelate mandibles; the next, the great length of the legs, 
which accounts for the mites being quick runners, and between 
the claws they are furnished with a large and well developed 
footpad. The hairs also are frequently bent in a sudden and 
peculiar fashion not commonly found among mites. Whether 
this is an accidental or a post mortem effect I cannot say. 
The joints of the palpi are peculiarly sausage-shaped. No 
doubt these mites are widely distributed, and fairly numerous, 
especially in the north. Possibly some readers of The Nat- 
uralist will be able to give me some information about these 
very curious creatures. 
7 O; 
BIRDS. 
Common Gull Inland.—On 24th March, 1913, thirteer 
Common Gulls, in fine summer or breeding plumage, were in 
a field near Eshton, Skipton. Odd ones, and occasionally twos, 
have previously been noted both in Airedale and Wharfedale 
many times.—H. Lumpy and W. H. Parkin, Shipley. 
Variety of Song Thrush.—On 24th March, 1913, a 
peculiarly marked Common Song Thrush, with a deep black 
crescent across the upper breast so conspicuously coloured 
that it could be easily observed at a considerable distance, 
was seen at Eshton, near Skipton.—W. H. ParkIN. 
—:0:— 
GEOLOGY. 
Remains of a Seal in the Holderness Glacial Drift.— 
A bone recently found in the Glacial Gravels at Kelsey Hill, 
Holderness, proves to be the fibula of.a seal, though it is not 
possible at present to state exactly what species. This is 
an addition to the list of animal remains from these gravels. 
I am indebted to Mr. E. T. Newton, F.R.S., for examining the 
specimen. Other recent finds include the tooth of Rhinoceros 
leptorhinus, and bones of Bos primigenius.—T. SHEPPARD. 
1913 May 2: je 
