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dorso-lateral bristle is furnislied with long hairs. The bristles on this joint are of about the same
relative length as in my fig. 27 of C. symmetrica. The dorsal bristle of the end joint is relatively
somewhat shorter than in the figure just mentioned.
Sixth limb: — Exopodite: The bristles of the first joint are in most cases
about the same as in my fig. 29 of C. symmetrica (the number of the ventral bristles is sometimes
somewhat reduced?). The ventral bristle of the tliird joint is relatively long, often about as
long as the height of this joint.
The end joint of the s e v e n t h limb is provided with spines.
Penis: — This has almost the same height along its whole length and is obliquely
rounded distally. Thore are six rather broad oblique transverse muscles at the middle, distally
of which there are no muscles. It has a well developed and moderately wide copulatory
appen-dage of about the type reproduced in fig. 6.
Furca: — There is no unpaired bristle behind the claws.
Rod-shaped organ: — This is of the type described and reproduced by
G. W. MÜLLER; cf. the accompanving fig. 3.
Upper 1 i j) : — The part between the combs on the postero-ventral edge of this lip
is usually somewhat, thougli only rather slightly, more deeply notched in the middle than it
is in my fig. 37 of C. symmetrica.
Female: —
Shell: — Length: According to G. S. BRADY and A. M. NORMAN, 3 mm.;
G. W. MÜLLER, 1906 a, gives 2,2—2,95 mm. (cf. p. 668 above); G. H. FOWLER, 2,5—3 mm. The
specimens measured by me were 2,7—3,2 mm. long. Seen from the side it is of about
the type reproduced by G. W. MÜLLER. Seen from b e 1 o w it is of about the same type
as in the male, but the posterior part of the shell is somewhat larger than in the latter and the
anterior part somewhat smaller, in other words the anterior part of the shell dominâtes over
the posterior part considerably less than in the male, sometimes the dominance is scarcely
perceptible. In other respects it is like that of the male.
First antenna: — This is of the type reproduced by G. W. MÜLLER. The e-bristle
has short hairs on the anterior sitie of its proximal third. The second joint has a moderate
number of short, fine spines scattered proximallv ventrally; the fourth joint, too, is armed with
similar spines. Exceedingly fine spines of the same kind can also, at least in some cases, be
observed at other places on this limb. I did not succeed in tinding any yellow pigment
cor-puscles in this limb.
Second antenna: — Protopodite: In specimens with shells about 3 mm.
long this measured about 1,2 mm. The exopodite is like that of the male.
Endo-p o d i t e: This has two joints: First joint: The processus mammillaris is like that of the male.
Second joint: One of the c- and d-bristles is always developed; it has short hairs and is about
as long as in pi. XVIII, fig. 8, G. \V. MÜLLER, 1906 a; sometimes both of these bristles are
developed, in which case one of them is always very short. The g-bristle is of about the same type
and length as in the male (i. e. about as long as or somewhat longer than the protopodite).
The f-bristlc is about a third or a quarter shorter. The li-, i- and j-bristles are subequal, about
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