82 
A CORNISH FAUNA. 
extending as far as the Shetlands from whence I have received 
it, the specimens that have been dredged in the colder regions are 
very small, and the inhabitants of very deep water. 
Gtalathba digidistans.— Bute, Report on the South Devon 
and Cornwall Marine Fauna Flora ; Brit. Assoc. Report, 1867, 
p. 277 and 279. 
In that report the author says, “ among the Galathea that we 
have taken on our coast, and which embrace all that have been 
previously known as British, is one that we think must be 
accepted as not having been previously described. The largest 
specimen measuring from the extremity of the tail to that of the 
extended hands is little more than two inches, of which the 
animal itself, measuring from the extremity of the rostrum to 
that of the tail, is litttle more than one inch. This species differs 
from^ either of the others in having the large pair of chelate 
pereiopoda (hands) flat and broad, the lingers much curved, very 
distant, and meeting only at their apex when closed, furnished 
on the inside with a considerable brush of hairs, and armed near 
the base of the moveable finger with a prominent tubercle or 
tooth, but which a2Dpears to be of little importance, since it is not 
able to impinge against the opposite finger. 
We have sometimes thought that this specimen may only be an 
extreme form of the male of Galathea squamifera \ but the 
armature of the surface of the hands, which is generally a safe 
guide to specific characters, has a distinct variation. In 0- 
squamifera the arms are covered generally with a series of curved 
scale-like tuberculations, the anterior margin of which is divided 
into a series of bead-like elevations, while in the most typical 
parts such as on the surface of the meros and carpus the central 
prominence is elevated to a point, and the whole of the tubercular 
ridge is crowned by a row of short hairs, so minute that they are 
not perceptible except by the assistance of a lens. These tuber- 
culations are closely j>acked and regular. 
In this species the tuberculations are less prominent and 
defined, the margins of which can only be jierceived to be at all 
baccated by careful arrangement of light, while the cilia, being 
far less nmmerous, are yet more conspicuous under the lens.” 
Two specimens only have been taken on stony bottom, in 30 
fathoms of water. 
