CRUSTACEA DECAPOD A—BORRADAILE. 
103 
is possible. As they have not the characteristic hooked hairs of the Maiidae, it cannot 
be their practice to cover themselves with sessile organisms. Nor is the texture of 
their carapace that of a weed- or sponge-haunting crab. In that respect they are far 
more like the sand- and mud-dwelling Oxystomes or Parthenopids, which they also 
resemble not a little in the shape of their chelipeds, while the forepart of the carapace 
Eig. 13 .—Echinomaia Msjrida, n. sp. Male, x 3. 
is strongly reminiscent of the snout-like region that Leucosin thrusts up to the surface 
of the sand. The kind of ground upon which specimens have been taken has not 
always been recorded, but in the instances I have been able to trace it has always been 
“ mud ” of some sort, except in the present case. The new crabs were taken by the 
“ Terra Nova” on “rock,” but such a bottom often contains pockets of sand in which 
a characteristic sand fauna lives. 
