662 MR, C. SPENCE BATE ON NEW CRUSTACEANS. [Dec. 13, 
May, June, and July, during the twenty-four hours there is but one 
high and one low water. At the change and full of the moon, high 
tide happens near midnight, and varies but little as to time during 
the three months. In August, September, and October there are 
two high and two low tides in the twenty-four hours. Then in the 
winter months, November, December, and January, the regular twelve- 
hour tides recur; but high water is at twelve in the day, instead of 
twelve at night. The spring tides range from 10 to 12 feet, the neaps 
from 5 to 8. 
The temperature of the sea taken during the summer months near 
the surface ranges from 52° to 56° F. The sea-water seldom, I may 
say never, looks clear, but always presents a turbid muddy appearance, 
as if a large quantity of sand was mixed with it. This may in some 
measure be accounted for by assuming that strong undercurrents 
flow from north to south, and, sweeping past the island and being 
(from their low specific gravity) close to the bottom, stir up the sand 
and mud. The sea-bottom in and adjacent to the numerous bays, 
harbours, and long canals which, like the fiords of Norway and 
Sweden, everywhere intersect the mainland and island coasts, varies 
in accordance with the character of the bounding rocks: where trap, 
soft clay-slates, or felspathic rocks form the coast-line, a thick blue 
clay is the usual bottom; where grits and sandstones, there it is 
sandy. 
Little, if indeed anything, is as yet known of the deep-sea produc- 
tions from the west side of the island, which will afford a rich har- 
vest to future explorers.—J. K. Lorp.] 
PUGETTIA LORDII, 0. 8. 
Carapace quadrate behind the orbits; the anterior portion ab- 
ruptly narrowing and produced into a double rostrum, the horns 
of which divaricate. The anterior extremity of the orbital margin 
is produced to a sharp point—that is, elevated slightly above the 
beak ; the posterior extremity is defined by a distinct fissure. The 
anterior hepatic region is produced by a tooth immediately pos- 
terior to the postorbital fossa, laterally extended to an obtuse tooth 
or point, and posteriorly separated from the branchial regions by a 
decided fossa or lateral constriction. The branchial region is late- 
rally produced to a strong anteriorly-curved point. The dorsal sur- 
face is tolerably smooth, exhibiting but faintly the marking of the 
internal viscera. ‘The eyes are small, and reach but little beyond the 
orbital margin. The external antennee have the first joint fused with 
the carapace, the second and third compressed and arcuate, and ter- 
minate in a smooth flagellum. The first pair of pereiopoda are mo- 
derately long, having the meros triangulate, the upper angle forming 
a prominent carina that extends along, but terminates abruptly a little 
short of, both extremities of the joint; the carpus is tricarinated ; 
the propodos is laterally compressed, and forms about half the length 
of the limb, and is about one-third its breadth. The dactylos is 
slightly curved and slightly serrated on the inner margin, and anta- 
gonizes at the extremity with the produced propodos. The second pair 
