73 
which, though well enough known, I have not found mentioned by 
any of the authors dealing especially with these matters (Poulton, 
Fig. 7, A species of Dromia, carrying on its back a large colony of a compound 
Ascidian, which hides it comple kld From Disaster Bay, N. S. Wales, 30—40 fathoms. 
at. size. 
Beddard, Jacobi, Plateau, M' Intosh), viz. the Dromfids, 
which carry on their back, holding it with their two posterior pairs 
of legs, a sponge, an Ascidian or the like, thus 
Covering themselves entirely (Fig. 7). In many 
Cases it appears that they cut out themselves 
with their claws the piece of sponge they 
want for the purpose of covering themselves; oe 
it is generally found of the right size, fitting 
the size of the carapace of the crab (Fig. 8). &9 
Å most astonishing example of this sort oj 
Protection is that recorded by Shelford!") viz. 
the crab Dorippe astuta, which he found car- bx: ] 
Trying a large leaf over its back. ,S0 close big Nr Sk Broke oa 
was the resemblance betwéen one of these vered with pieces ofsponge, 
leaf-covered crabs and a waterlogged leaf wash- 
ing to and fro in the gentle bottom-currents, ”Tamboanga.. Nat. size 
R. Shelford. A Naturalist in Borneo. Ed. by E. B. Poulton. 1916. p. 300. 
