204 
GAMMARIDiE. 
tolerably round, and black. The superior antennae are 
about half as long again as the head ; the peduncle is 
just the same length as the flagellum, but the first joint 
is longer than the other two ; the flagellum is about half 
the length of the peduncle. The inferior antennae have 
the peduncle quite as long as the superior antennae, the 
last two joints being nearly of the same length, and 
about three times the length of the preceding. The first 
two pairs of legs are similarly formed, but differ con- 
siderably in size, the second having the hand more than 
twice as large again as that of the first; the wrist is in- 
feriorly produced along the inferior margin of the hand ; 
the hand is ovate, the palm occupying nearly the entire 
length of the inferior margin, without its extent being 
properly defined, the edge is furnished with a smooth 
margin, fringed laterally with two sets of hairs, the 
one directed anteriorly, with the tip suddenly directed 
posteriorly into a hook ; the other, consisting of alter- 
nate long and short hairs, directed backward, each being 
furnished on the anterior margin with two small cilia ; 
the finger is curved, and armed on the inner margin 
with a deeply-serrated edge. The next two pairs of 
legs are more slender, and shorter than any of the 
others. The last three have the thighs very oval, and 
the fingers very long, straight, and styliform. The 
penultimate pair of caudal appendages are shorter than 
those that precede or follow it. The last pair have the 
branches much shorter than the peduncle. The tail- 
piece is oval, and subapically furnished with two simple 
hairs. 
This animal was first taken by us, in company with 
our valued friend Mr. T. P. Smyth, to whom we wish 
to express our obligation for having frequently placed 
his yacht at our disposal for dredging purposes. We 
