Mr, C. Spence Bate on Anomurous Crustacea. i BL 
the temperate latitudes, in tolerably deep water, on the western 
shores of Europe; for although extending as far as the Shet- 
lands, yet the specimens that have been dredged in the colder 
regions are, we believe, invariably very small, and the inha- 
bitants of very deep water. 
Among the G‘alathee that we have taken on our coast, and 
which embrace all that were previously known as British, 
is one that we think must be accepted as not having been pre- 
viously described. 
The largest specimen, measuring from the extremity of the 
tail to that of the extended hands, is little more than 2 inches, 
of which the animal itself, measuring from the extremity of 
the rostrum to that of the tail, is little more than 1 inch. This 
species differs from either of the others in having the large 
pair of chelate pereiopoda flat and broad, the fingers 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 appears to be of little 
importance, since it is not able to impinge against the opposite 
finger. I 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 in specific character, has a distinct variation. In 
G. 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, of which 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 tuberculations are closely packed 
and regular. 
In the supposed new species the tuberculations are less 
prominent and defined, their margins can only be perceived 
to be at all baccated by careful arrangement of the light, while 
the cilia, being far less numerous, are yet more conspicuous 
under the lens. If it be only a variation of G. squamifera, as 
we are inclined still to consider it, it is too important a va- 
riety to be passed over without notice; and we have named it 
provisionally Galathea digitidistans, until the observation of a 
larger series of specimens than we have as yet seen may en- 
able us to arrive at a correct conclusion. 
The zoéa of the genus Porcellana has, I believe, been figured 
from exotic species by Dana*; and having the opportunity of 
* [Also by Fritz Miiller, ‘ Fiir Darwin,’ p. 35, fig. 24.—p. | 
Ann. & Mag. N. Hist. Ser. 4. Vol. ii. 8 
