302 THE ZOOLOGIST. 
I therefore take this opportunity of stating that in the Yarmouth Aquarium 
there is a specimen of the Edible Crab, which was trawled up from the 
deep-sea fishing ground by one of the vessels belonging to this port. It 
was brought to me on the 27th of February, and was then loaded with 
spawn, which has not yet been deposited. There can be no doubt that the 
deeper the water from which’a Crab is taken, the later will be its spawning 
time.—C. P. Oativie (Yarmouth Aquarium). 
Hasits or tHE Losster.—Lobsters at their earliest stages swim at 
the surface of the water. On the 27th May I procured, for the first time 
this year, several specimens by lowering from the Britannia Pier a muslin 
net, and allowing it to remain in the tideway for a few minutes. The 
capture of these little crustaceans is curious here, because the nearest 
lobster ground of any importance is at Cromer, distant about thirty-five 
miles off; thus showing what an immense distance the tide will convey ova 
and young fish. The hauls I have lately made contain lobsters, possum 
shrimp, sand-eels, flat-fish, &c.—all in very immature condition.—Ib. 
Inrropuction or Forreten Lanp anp FReEsH-wateR Mo.iusca.— 
With reference to Dr. Tristram’s remarks (page 260) respecting the intro- 
duction of land and fresh-water shells from abroad, will you allow me to 
suggest that it might help to solve the problem of the climatic condition of 
England in the time of paleolithic man, if some one would introduce to 
British rivers, from the Nile, the Corbicula ( Cyrena ) fluminalis in sufficient 
numbers to give it a fair chance of becoming acclimatised. Paludina 
marginata and Unio littoralis might be more easily brought from France, 
and as many of your readers well know, they were associated with the 
Cyrena when our rivers were frequented by the Hippopotamus and their 
banks by Elephants and Rhinoceros and by paleolithic man. The absence 
of the above-named mollusks at the present time is sometimes used as an 
argument in favour of the conclusion that the climate was then warmer 
than now; but it may be, as others suppose, that they perished in Eng- 
land from the cold of the glacial epoch, and have had no opportunity to 
re-appear.— Tomas Bevr (Cornwall House, Ealing). 
Tue Fauna or THE West or Scor_anp.—At a meeting of the Natural 
History Society of Glasgow, held on the 24th April last, a report was sub- 
mitted from the Committee appointed last session to prepare Catalogues of 
the Fauna of the West of Scotland, and more particularly of the Clyde 
Valley. The report stated that arrangements had been made with several 
zoologists who had undertaken the preparation of lists of species in different 
departments, and that the first part of the Fauna will appear next autumn 
in the ‘ Proceedings’ of the Society. The Catalogues will be so arranged 
that when completed they may be detached if desired, to form a separate 
volume. We have no doubt the Secretary of the Society will be glad to 
receive any communications from those who may have already collected 
