Field Notes. 157 
slug, which had been laid aside and forgotten. Both slugs 
were found in my small garden, 8 Bridge Street, Louth, which 
is very cold anddamp. Mr. Roebuck has identified one of them, 
found in 1903, as Limax maximus var. aldrovandt Moq-Tand. 
The other specimen will be noted in the forthcoming part of 
Mr. J. W. Taylor’s Monograph. 
On July roth, 1906, 11 p.m., I had the good fortune to find, 
in the same place as the above, a very fine example of var. dzcolor. 
It might almost have been the model for Mr. Taylor’s excellent 
figure of that variety in the Monograph.—C. S. Carrer, Louth. 
The example especially alluded to above by Mr. Carter, was 
a beautiful but somewhat aberrant example of my variety dzcolor 
of Limax maximus, in which, although the ground tint remained 
of a perfectly pure white, and the spotting upon the shield, as 
well as the interrupted longitudinal banding upon the body, 
were of the usual intense black, yet the space or area occupied 
by the markings was greatly increased, and noticeably en- 
croached upon, and in parts totally obscured the snow white 
ground colour. 
In this connection, it may be advisable to avail myself of this 
opportunity to point out that the Zzmax cinereus var. albus of 
Am Stein, which has hitherto been regarded as a synonym of 
Lessona’s var. candida of Limax maximus, is not referable to 
that form as has so long been thought, but really belongs to 
my variety dzcolor, which is a variation of extremely rare occur- 
rence, and Mr. Carter has been indeed fortunate to find two 
such beautiful examples within so restricted an area.—J. W. 
TayLor, February 20th, 1907. 
—:0 :— 
BIRDS. 
Malham Tarn Birds in Winter.—The following birds 
were seen on the Tarn this winter :—Tufted Duck, Pochards, 
Teal, Mallards (I saw a batch of each of these from ro to 20 in 
each). Wigeon (a few). Little Grebe (this bird is there all the 
year round). Waterhens (plentiful). Grey Wagtails (a few 
birds). Wild Geese (I heard these at night, but did not see any 
during the day, although they are to be heard and seen every 
winter around the Tarn) ; and a couple of Golden Eye Ducks. 
Pochard Duck.—I have a single record of this having nested 
there this last season (1906). A specimen of the Great Crested 
1907 April 1. 
