CBUSTACEA. 
203 
CLASS III.— CRUSTACEA. 
Mr. Spence Bate, E.R.S., has very kindly examined and named 
my collection of Marine Crustacea ; and Mr. Walker has done the 
same with the land species, in conjunction with the insects. The 
former includes two species, which are nsed as a substitute for lob- 
sters, and afford an excellent article of food, whether eaten plain, 
curried, or in salad. The various Crabs, some four or five in number, 
which occur along the rocky sea-coast, have yet to he investigated. 
PoDOPHTHALMIA. 
Order Beach yura. 
Yaruna, Mine. Ed. 
*V. atlantica, Spence Bate. — A pretty little bright-blue Crab, 
of which I saw only one specimen, which was taken from the hull of 
a ship anchored in the roadstead. 
Oeder Anomura. 
Dromia, Eab. 
*D. vulgaris, Mine. Ed. — The Sponge Crab, so greatly re- 
sembling a piece of sponge that no difficulty exists in recognising 
it. It is only occasionally found ; inhabits also the Mediteiranean. 
Pagurus, Eab. 
*p. bernhardus, Reaumur. — The Hermit Crab is occasionally 
found washed up on the sea-shore, inhabiting some shell to which it 
has no legal claim. 
Order Macrura. 
Scyllarus, Eab. 
*S. latus, Eatr. — A large shell-fish, called The Stump. It is 
caught in shallow water at 15 to 20 fathoms, in considerably large 
quantities during the months of November to January, and sold 
in the market at Zd. or Ad. apiece. The mode of catching it is 
with a trap made of four hoops and split bamboo, somewhat after 
the plan of a gigantic mouse-trap, several feet in length, and 18 inches 
