36 
with his pincers he brought away a handful of the sponge and _ pro- 
ceeded to eat it. At the time of writing he had supported himself 
for a week on the produce of his carapace, had cleaned off one of 
his big claws, and was busy with the other. Fragments are still left 
in the valleys of his back, and these are probably respected in the 
hope that they will again spread. 
Very few specimens of dorynchus have yet fallen to my lot ; chiefly, 
I believe, because my fisher friends do not readily distinguish them 
from the common JZacropodia rostratus, of which they consider I have 
already had enough. 
The specimen of Lrachus leptochirus exhibited is my type at present. 
At the moment of writing I have access to no recent notices of the 
species. Bell mentions only four or five specimens as having been: 
taken up to the appearance of his “ History,” but whether later 
naturalists have been more successful with it I cannot say. I note 
that Stebbing merely mentions that there is such a genus comprising 
six species, of which three (named) are British, but gives not even a 
generic description. At present I can add nothing to what is appa- 
rently the very scanty knowledge of /epfochirus, except that Gerrans 
Bay must henceforth be included among its localities. 
Maia sguinado 1 had occasion to bring under your notice nearly 
two years ago. I have living and dried specimens I could send you, 
but they are large and awkward, so I content myself with sending 
photographs of the upper and under sides. I shall not go over old 
ground again, but will briefly say it is the largest and most prickly of 
all our spider-crabs. The entire carapace is thickly covered with 
broad-based substantial spines, which reach their highest development 
around the antero-lateral margins and along the median line from 
front to back. Every one of these conical spines has the base sur- 
rounded by a circle of hooked bristles for the purpose of securing 
three- or four-inch lengths of HZadrys stliquosa and Zostera marina. 
The upper sides of the legs are thickly coated with these hooked 
bristles for a similar purpose, and wherever it is possible to find space 
unoccupied by these, stiff sharp bristles are planted that will enter 
the flesh of the naturalist as readily as do the hairs of Cacti. These 
straight bristles serve to hold all sorts of rubbish in the shape of mud, 
sand, débrzs of rotting Fucz, &c., in which the numerous tribes of 
worms, sand-stars, amphipods, anemones, sponges, polyzoa, mollusca, 
&c., may find congenital quarters. I could write you a paper upon 
the fauna of a JZaza’s carapace, and I think it would have to be quite 
as long as the present essay. On one occasion I detached seven 
specimens of the anemone Cy/sta viduwata from the back of the 
particular Zaza whose portrait is before you, and I have not yet 
found that species elsewhere in this neighbourhood, though I have 
been fairly successful in working out the anemones of the district. The 
photographs are from a male. ‘The female has proportionately shorter 
and more slender chelae, but the abdomen is so highly developed that 
it entirely covers the thorax—its lateral margins (it is oval in form) 
