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First antenna: — This is long and slender and eight-jointed. The sensory bristle
of the fifth joint has t-hirteen sensory filaments. The b- and c-bristles of the males are
generally characterized by quite the same modification as described above, p. 223, for the
sub-genus Doloria; in exceptional cases the former of these two bristles has only one filament
vvitli a series of small distal suckers; see Cypridina mediterranea, G. W. MÜLLER, 1894, pi. 2.
lig. 20. The end bristles are sometimes rather slightly longer in the males than in the females,
sometimes in the former sex bristles f and g are considerably longer than in the latter.
Second antenna: — The pro topodite has a medial-distal bristle. The
bristle on the second joint of the exopodite is rather powerfully developed. The natatory
bristles on the third to the ninth joints have no trace of spines. The third to the ninth joints
have basal spines. The endopodite is similarly developed in males and females, being
either comparatively well developed, rather elongated and three-jointed or more or less reduced,
with a réduction in the number of joints. The bristle of the end joint is comparatively long.
Mandible: — Pr otop odite: The endite on the coxale is weakly bifurcated
distally; some of its spines are rather strong, especially those situated medially-distally; at
least some are arranged in rather distinct groups. Apart from the little bristle situated dorsally
on this process this joint has no bristles. Basale: Of the ventral bristles one d-bristle is very
long, has numerous long secondary bristles and is furnished with short hairs distally; the others
are of moderate length or short and have short, fine hairs or are naked. Dorsally this joint
lias three bristles. Endopodite: The first joint has four bristles ventrally. The end
joint has seven bristles, of which the two middle ones are the most powerful, claw-like, and
of about the same length and strength as each other.
Maxilla: — Protopodite: The coxale has a single bristle dorso-distally with
long, fine hairs. There is a single bristle proximally on the outside of the third endite. The
bristles on the boundary between the basale and the first endopodite joint vary somewhat;
sometimes three are developed, one close to the exopodite, one medially at about the middle
of the palp and one on the anterior edge of the palp; this last bristle is, however, sometimes
missing. There is a rather large lamelliform e pipo dial appendage dorso-distally
on the coxale. The exopodite is comparatively well developed, with close, fine, long
hairs and not displaced distally. The endopodite is broad and of moderate length.
S i X t h 1 i mb: — The second exopodite joint is rather short, somewhat rounded
and has numerous bristles. Its posterior bristles do not dominate strikingly over the other
bristles. (G. W. MÜLLER states, 1894, p. 68, that the epipodial appendage of the
protopodite in the genus Cypridina, sensu G. W. MÜLLERI, is always characterized by four
bristles; that this is not the case is shown by the descriptions of the species given below.)
Seventh li mb: — This is furnished with rather numerous cleaning bristles, a
large number of which are placed close together distally, the rest scattered irregularly along
the distal part of the limb. With regard to the position of these latter bristles it is to be noted
that only exceedingly seldom or per haps never is there more than one bristle on the same side
of the same joint. The end comb consists of a moderate number of rather strong teeth, some
rather long, distally rounded or more or less pointed distal teeth, smooth except for a little
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