CRUSTACEA OF THE MERGULI ARCHIPELAGO. Q45 
armed with a row of small black spinules. The outer and inner 
surfaces of these legs are smooth. The legs of the fourth pair 
are chelate and clothed with long yellow hairs along their upper 
and under margins. The more slender fifth legs are also very 
hairy. | 
This species is beautifully coloured. The cephalothorax and 
the postabdomen are of a uniform yellowish colour, and are never 
marked with red longitudinal lines. Hach eye-peduncle is marked 
with three red longitudinal lines, one on its upper, one at its 
external, and one at its internal side. The antennulary and an- 
tennal peduncles are also marked with one or two red lines. The 
legs are of a white or pale yellowish colour, and marked with 
many longitudinal lines of dark red. The upper margins of the 
arms and of the wrists of the anterior legs are bordered on each 
side by a red line; these two red lines are continued along the 
inner margins of the upper surfaces of the hands. The outer 
and inner surfaces of the anterior legs are marked, moreover, 
with one or two often interrupted, red lines, which in very large 
individuals are rarely distinct. In order to give a good idea of 
the coloration of the legs of the second and third pair, I will first 
describe the coloration of the dactylopodites. On each side of 
the smooth dorsal ridge, which is white or of a pale yellowish 
colour, each dactylopodite is marked, on its outer as well as on 
its inner surface, with two red lines, separated from one another 
by an equally broad white or pale line. Interrupted traces of 
a fifth, much narrower line are observed along the under margin. 
These lines are continued on the propodites, but in such a manner 
that the two red lines which border the dorsal ridge of the dacty- 
lopodite are each divided on the propodites into two lines, which 
are separated by a rather broad pale yellowish space, and meet 
again at both ends. The inferior red line of the outer sur- 
face of the dactylopodite appears a little broader on the outer 
surface of the propodite, undivided on the propodites of the third 
pair, but with a narrow, pale, longitudinal space in its middle on 
those of the second pair; on the inner surface of the joints this 
line is, however, also divided into two narrow red lines, with a 
pale yellowish space between them. The under margin of the 
propodite is marked with a single red line, which, however, does 
not reach the proximal end. On the outer surface of the pro- 
podites of the legs of the third pair three red lines are therefore 
observed, besides the red line on the under margin of each, the 
