THE SHELLFISH INDUSTRY
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'317
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pounds and be over ten inches broad.
No other crab is
eaten to any extent in the British Isles, although the shore
crab used to be sold in. great numbers and is still eaten
on "the shores of the Mediterranean and on the Atlantic
coasts
of ”France, where the large Spider Grab (M aia
squinado) is also eaten in spite of its extremely thick shell.
The Blue Grab (Callineczes sapidus), one of the swimming
crabs, takes the place of the British edible crab along the
Atlantic coasts of North America, Where several other
crabs are also eaten;
in the :East Indies also various
'
kinds of swimming crabs are usedas
_
The shrimps and prawns include a number of smaller
Crustaceans which are collected in large quantities for
food.
Of the prawns the largest sold in this country is '
-
Leander sea/mms (Plate 117) Which-is often four inches or
-
more
in length with a ne serrated rOstrum. ' A second
common
prawn, distinguished’ from the common prawn,
Leander, by the name “ Pink Shrimp,”_ is Pamialus
.
M 0%tagui, an exceptionally handsome crustacean, while
.
another species of the same genus‘ (Pandalus borea“lis)is
imported from NorWay.
This is an exceptionally ne
prawn often six inches long, which, unlike the other prawns
we
have been discussing which.live in shallow water, is
_
‘
found in the fjords at depths of from thirty to sixty_ fathoms.
.
The growth of this shery was the result
of scientic _research
of
the
Norwegia
Department WhiCh
revealed its hitherto unknown— presence
in the deep water,
"and showed that it could be caught on a commercial
scale
by means of special trawls, with the result that an im'
portant
shery
of. these
“
deep-water prawns ”_ was
_
established.
Many other kinds of prawns are caught m
different parts of the world
and attempts have
been made
to send frozen prawns 'froin Queensland fc0 England.
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_
The common shrimp (ÈVangon vulgaris) 15 one of the