CBirsTACEA. 
79 
This species was first found in South Wales, several years ago, 
and no naturalist appears to have met with it since. In the 
summer of 186.5 I again met with it in tolerable abundance. I 
look it with a dredge off the entrance to Plymouth Sound, and 
Seeing it with a number of shrimps in the basket of a fish woman, 
at Teignmouth, I purchased the entire stock, and hastening to the 
teach, there, with the incoming tide I took many specimens, 
Which I kept alive. This, the prettiest of aU the pretty genus, 
tas the habit of burrowing in the sand, and it is probably to this 
circumstance that it has not been met with more frequently. 
An interesting point in the develoj>ment of this animal I have 
been enabled to make out and publish in the Report on the 
Marino Fauna and Mora of South Devon and CornwaU, presented 
to the British Association for 1865. Early in June we were 
enabled to capture many specimens of the young animal in 
'Various degrees of progressive growth, a circumstance that has 
enabled us to declare that the genus Glmeotlioe described by Mr. 
Milne Edwards in tho Annales Set. Nat., for March, 1830, Prophy- 
of Latrielle, is none other than an immature stage of Pagurus-, 
'>'1 this period the little creature swims freely in the ocean, and 
continues until obliged by an increase of growth to take refuge 
in a shell, when he settles down and becomes a Hermit crab. 
PORGELLANABM. 
Genus, Poeoellana. — Lmnevreh. 
“Carapace nearly circular; hands broad and twisted; the 
binder pair of legs slight and weak, bent on the other, and end- 
i’lg with a finger. The abdomen (pleon) bent under as in 
i^rachyurus, but ending in a fan-shaped tail.” 
b^ORcELEANA PLATYOHBLES (Hairy Crab ). — Milne Edwards, Mist, des 
Crust., t. a, p. 255 ; Pennant, p. 6, fig. 12; Bell, Stalk-Eyed 
Crust., p. 190. 
“Abundant under stones at low water mark. It is incapable of 
'Moving in any dirction except backwards, not lifting its claws, 
drawing them after it ; the antennee lying on the sides of the 
pai’apace in the direction of its march. Unlike our other crabs, 
boes not wait for an attack to throw off its legs ; but siezing 
6nemy with its nij>pers, it leaves them to do all the injury of 
^bich they are capable, whilst itself has retreated to a place 
M safety.” 
