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bristle type. Second joint: Ventrally at or somewhat distally of the middle of the joint there
is a single sliort-haired bristle, eitber pointed or of the tube-bristle type, about as long as this
joint or somewhat longer. Third joint: The two bristles are subequal, often about as long as the
bristle on the preceding joint, and have short liairs; they are pointed or of the tube-bristle type.
Fourth joint: Of the three bristles on this joint the two dorsal ones are often subequal and about
as long as the total length of the second and third exopodite joints, the ventral one is somewhat
shorter, but their lengths vary to so me extent; they correspond in type to the three bristles on
the end joint of the preceding limb. Pilosity: The first exopodite joint is partly furnished with
short, fine hairs. Apart from these this limb is usually bare.
Sevent h limb: — The longest bristle is about a third of the length of the shell
(for instance in a specimen with a shell about 1,5 mm. long it measured 0,45 mm.). The end
joint always seems to be smooth.
The penis is of the type described by C. CLAUS; see this writer, 1891 a, pi. XXII,
fig. 11. There is no copulatory appendage; see the accompanying fig. 25.
The furca (fig. 26, c? = $) has seven claws. The armature of the claws is moderately
strong. There is no verruciform process between the first and second claw. Behind the
claws there is (always?) an unpaired short-haired bristle of varying length, sometimes about
as long as the second or third claw, sometimes only about as long as the seventh claw. The
lamellae are often furnished with groups of short, stifï hairs on the inside.
The rod- shape d organ (figs. 7 and 8, = $) is of about the same type as is
described by U. W. Müller, 1906 a; it is loosely joined to the first antenna by the dorsal bristle
on the second joint of this limb.
Upper lip: — This projects rather slightly; it is rounded anteriorly and has no
verruciform swellings (see fig. 1, S = ?)• The exits of the glands of the upper lip are scattered on
the antero-ventral side of the lip, but are, however, arranged to some extent in two longitudinal
bands, each running on one side of and at some distance from the middle line. The posterior
ventral margin of the upper lip is cut off transversally (see fig. 27, S — $)• U? combs project
rather slightly and are furnished with rather numerous and moderately fine hairs. In the inner
corner of each of these combs there issue, as in the genus Conchoecia, one or two glands. The part
between these combs is in most cases rather narrow, sometimes only slightly more than half
the width of the combs, sometimes, however, as broad as them; it is rather deeply concave
in the middle; this concavity is sometimes rather broad and rounded as in the accompanying
figure, sometimes rather narrow.
The paragnates are oval; the hairs on the margin are also fine. The chitinous lists
behind the under lip are of the type reproduced by C. CLAUS, 1874 b, pl. III, fig. 26, i. e. they differ
from the types developed in both the genera Euconchoecia and Conchoecia because the J_-shaped
posterior part in the latter genera has in Halocypris a backward pointing process at the middle,
by which it becomes + -shaped.
F e m a 1 e: —
Shell: — Length: According to G. W. MÜLLER, 1906a, ,,bis 1,85 mm.“; according
to the same author, 1912, the maximum length for this species is 1,8 mm. The mature females
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