ARCTOPSIS. 
21 
Not a very common species. Mr. Bell finds it abun- 
dantly at Bognor, where “they are found concealed under 
the long hanging fuci which clothe the rocks at some dis- 
tance from the shore/' where they congregate in vast num- 
bers in the prawn and lobster pots. “ I have seen probably 
thirty amongst the refuse of one of these, attracted no doubt 
by the garbage which is placed in them as bait/' Mr. Bell 
found the males to be larger than the females. Mr. Eyton 
obtained this at the Isle of Man, and the Bev. A. Norman 
at Guernsey and at Budleigh Salterton. 
Arctopsxs lanata, Lam. sp.^ Gibbs’s Grab. (Plate I. 
fig. 2.) — Hind part of carapace triangular, lateral margin 
without spines ; branchial region on each side with a strong 
spine ; the whole carapace covered with dense villous hairs 
much longer than in the last species. 
South coast of Devon, Cornwall, and Sussex; Isle of Man 
(Mr. Eyton); Guernsey (Bev. A. Norman). 
* Cancer biaculeatus , Montagu ; Pisa Gibbsii , Leach ; Arctopsis lanata , 
Lam. Syst. An. s. Vert. p. 155 (1801), an older name than either Montagu’s 
or Leach’s. 
