MISCELLANEOUS NOTES AND OBSERVATIONS. 
755 
that the specimen dug up at Ludham in 1904 is a surviving rtdic 
of the native race of post glacial times. 
Large numbers of individuals of this species are annually 
imported into this country from Southern Europe along with 
Testudo grceca and sold as pets, and it is probable that the 
specimen from Ludham has escaped from captivity, or possibly 
— as was suggested by Mr. Southwell — is one of a number which 
were “ put down ” in the marshes some years ago in the hopes that 
the species would again become acclimatised. — F. Balfour Browne. 
Pond Life Notes of the Yarmouth District in 1903.— 
T1 le unsettled weather during the summer of 1903 made pond 
collecting somewhat unsatisfactory, although some good results 
were obtainable. The inconstancy of species in the various localities 
and hunting grounds has been more apparent than ever, especially 
in regard to polyzoa , hydra , voloox, and some of the rotifers. 
Polyzoa : Lophopus. — This form has been procurable in abun- 
dance in the river Yare, especially at Brundall and Surlingham, 
although in each case there has been a shifting of the actual ground 
space occupied in former years. Contrary to many text-books 
I have found Loplwpus rrystallinus on any and every kind of 
aquatic plant from Anacharis to the Water Lily and on other 
objects from a snail-shell to a caddis-case. 
Cristatella . — This beautiful polyzoon found in great profusion at 
Brundall last year and in previous years on the Norwich side of 
Surlingham was not found by me in either habit it last year (1903). 
I believe this to he due in a large measure to the action of the tides 
which carry and distribute the statoblasts in all directions. 
Referring to Lophopus, I am of opinion that the tidal river is its 
natural habitat, hut during the year I found it in plenty in a ditch 
at Yarmouth, wholly unconnected apparently with a river stream. 
The specimens were slightly larger than the river denizens and in 
larger colonies as a rule. 
Yolvox globator. — This fitful habitant of our ponds and ditches 
has been somewhat difficult to find in the Yarmouth district during 
the past year. 1 visited every ditch (some dozen or so) where it 
had been taken in various preceding years lmt could not find it until 
chance took me to a West Caister (Yarmouth) ditch in Novemlier, 
when l was rewarded with a numerous catch. I had not taken it 
in this locality previously. 
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