Caprella tuberculata. 
Inner antenn long with a fringe of long setw on their underside; second, 
third and fourth joints about equal in length. Outer antenne without seta, 
almost as long again as inner ones: fiagellum somewhat larger than the two 
last basal joints; second basal joint larger than the preceding or succeeding 
ones; the entire base not quite as long as inner antenne. 
Propodus of Ist and 2d pairs oblong ovate, without teeth or spines, dactylos 
long and slender, fitting close to paimar surface. Manus of second pair spin- 
ose at extremity. Branchi short and thick. 
2d, 3d, 4th and 5th segments long, sub-equal, the Ist segment somewhat 
shorter, the 6th and 7th very short. The whole of the dorsal surface sparsely 
covered with small sub-spinose tubercles. 
Length of a large female, 0.90; ditto, from extremity of larger antenne to 
top of posterior dactyli, 1.75; of outer antenne, 0.56; of inner, 0.30 in. 
Several specimens, chiefly females, were brought from Icey Cape by Mr. W. 
J. Fisher, who procured them by dredging, at a depth of from seven to fifteen 
fathoms. 
Megalorchestia franciscand. 
Body smooth; superior antennz one-third longer than the body, the flagel- 
lum longer than the base, with about thirty-five oblong joints. Superior an- 
tenn reaching to middle of 2d joint of inferior. Second epimerals longer 
than deep, fifth short, bi-lobed. Anterior feet unguiculate, joints scabrous. 
Hand of second pair very large, oblong ovate, with an almost transverse 
palm, haying a low oblong tooth near centre of palm. Dactylus much curved, 
touching palm at point only when closed. 
Length of body, 0.87; of inferior antennz, 1.15 inch. 
A single specimen of this species was found by myself among the debris at 
high-tide level, Alameda Co., Cal. 
The antenne in the recent specimen were red. 
This amphipod resembles O. scabripes, Dana, but differs from the figure of 
that species in Dana’s work in the greater number of joints of the inferior an- 
tennee, the shape of the tooth of the hand, and the proportion of the second 
epimerals. From M. Californiana, Byandt, it differs in the short fifth epim- 
eral, and the scabrosity of the feet. 
QEdicerus Behringiensis. 
Cephalic shield rostrate, the rostrum about one-third the length of superior 
antenne, curved downward, pointed. Eyes moderately large, contiguous. 
First six thoracic segments much shorter, with a slightly raised keel in the 
centre of each. Seventh and abdominal segments long, the seventh thoracic 
and two first abdominal with the carina divided into two sub-equal teeth, the 
third abdominal with a long low carina ending in a spine posteriorly, 
Fourth epimeral much longer than the fifth. Superior antennae about 
three-fourths the length of the inferior; flagellum twice the length of last basal 
joint. Inferior antennz about one-third as long as the body, proportions like 
those of superior, Hands of first two pairs of feet oblong ovate, palms nearly 
