116 Mr. Templeton’s Descrijjtion 
on their articulation, is found the second pair in the series of ap- 
pendages, placed vertically and transversely, each with its root 
exteriorly in immediate connection with that of the corresponding 
antenna ; from its origin it passes inwards, gives off two pro- 
cesses, then has a direction somewhat downwards, curving for- 
wards without losing its breadth, and ends abruptly by giving 
support to seven apical, short, acuminate, toothed spines. The su- 
perior of the two processes arises from the edge at nearly a right 
angle, curves inwards and forwards, and gives off from its apex 
two pair of curved spines. The inferior process is biarticulate, 
the first joint very short, with near its apex a long straight spine ; 
the second, elongate, subdivides towards its apex, the smaller part 
ending in two thick short spines, the larger directed downwards, 
and having three long curved spines attached. 
Proceeding backwards a very short way, we find the articulation 
of the last pair of appendages, which presents the form of a tri- 
angle nearly equilateral, placed longitudinally, supported by its 
apex, and with the base lobed and spiny. Still farther back, we 
reach the bases of the two pair of swimming legs ; the “ pattes 
tres courtes et cachees sous le corps, a peine visible,” I could find 
no trace of whatever, and believe they only existed in the ima- 
gination of Bose, the first describer of the genus, or rather that 
their existence was inferred analogically when he had decided on 
the position of the animal in his systematic work. The legs arise 
from minute projections backwards of the fleshy part of the body, 
immediately external to the intestinal tube, the primary joint in 
both pairs being long, so as to project beyond the shell, robust, 
and in a slight degree arched forwards, laterally compressed, ap- 
pearing more so perhaps than they ought to do, from the desi- 
cation of the specimen, and ultimately offering two articulations 
at their apical extremity. The fore-leg is rather largest, and 
from the division it sends arching forwards a five-jointed member, 
terminated by a little pencil of hairs, and obviously designed to 
assist in the capture of the food of the little animal, as it is ever 
found in immediate connection with the parts of the mouth ; the 
other part is two-jointed, of equal length, directed downwards 
and outwards, and has a minute apical articulated appendage 
carrying six very long waved diverging hairs. The posterior leg 
sends downwards or outwards likewise a subdivision in every way 
similar to the last, and backwards a very minute one composed of 
three joints; the mesial largest and furnished with a long spine, 
the apical with two small spines. 
From the position it occupies adjoining the legs, the intestinal 
