of British Columbia. 
29 
Hapalogaster mertensii Brandt. PI. V. 
Melanges Biologiques, I., 58. 
Thorax leathery above, studded with bristly hairs, which are fascicled and 
only few in number. Feet of medium size, on the upper and posterior sur- 
faces beset with fascicles of hairs and spines arranged in rows, the spines 
themselves surrounded by bristly hairs. The right foot of the anterior pair 
is longer than that of the second pair, the claw is oblong, four-angled, moder- 
ately compressed perpendicularly, and covered with spines and rather long 
fasciculated hairs. The left chela is almost one-third less than the right. 
The largest specimen brought back by Mertens has a thorax 8J'" long 
and the posterior half 9'" in width. 
As found near Victoria, this species is of a brownish-red colour, the under 
surface of the legs is bright red and highly polished. Lives under stones 
and in crevices at low water. — (C. F. 1ST.) 
Provincial Museum, Victoria. 
Genus Dermaturus Brandt. 
Melanges Biologiques, Vol. I., 1850. 
The two apical joints of the external maxillipeds are not much narrower 
at the base, the last but one is oblong. Thorax tetragonal, not much wider 
posteriorly, destitute of spines and teeth on the lateral margins, the bran- 
chial and the other regions not very distinct; it is covered, as are also the 
extremities with a very thick calcareous shell. The anterior abdominal ring 
is furnished dorsally on each side with a subtriangular lamina, furrowed 
longitudinally above, and diverging at an acute angle outwards and back- 
wards from the lamina of the opposite side, and separated from it, in the 
middle line, by a cutaneous interval. 
Dermaturus hispidus Stimpson. 
Ann. Lyc. Nat. Hist., New York, Vol. VII., 1860. 
Carapax moderately convex in front. Cardiac transverse sulcus deep. 
Surface covered with very small setose tubercles or short spines. Lateral 
margins not projecting but armed with spines longer than the rest. Ros- 
trum rather large, reaching to the tips of the eyes, its apex armed with 
three spines. Feet thickly set with setose spines. Chelipeds not longer 
than the ambulatory feet, and the fingers which do not gape, have black, 
horny, cochlear, apices. Ambulatory feet not flattened. Abdomen hispid 
like the carapace, the plates of the basal joint broad, and the right 
margin furnished with a single row of spines which are setose on the sides. 
A female measured .85"' in length and .9"' in width posteriorly. 
Campbell Island, B. C., J. Richardson. 
