38 DR. G. S. BRADY ON THE 
no doubt that this is the species named by him Labidocera cervi. Dr. Kramer says 
that the abdomen of the female is two-jointed, and in some specimens I have found 
the abdominal segments so interfused that it is difficult to make out the number : 
there may, indeed, be no visible separation, but in some there are distinctly four 
segments. In the allocation of joints to the right male antennule, | have followed 
Dr. Giesbrecht (Labidocera nerii, &c.), not having myself been able to make them out 
distinctly in the New Zealand specimens. 
Family CYCLOPID. 
Genus Cycrors (O. F. Miiller). 
1. Cyctops ewarti G. S. Brady. (Plate X. figs. 15-17.) 
1888. Cyclops ewarti G. S. Brady (3), pl. viii. figs. 1-6. 
SOE Seas; » idem (4) pl. vii. figs. 4-7. 
One specimen of a Cyclops which I cannot in any way distinguish from C. ewarti 
was found in a surface-net gathering from Otago Harbour. 
This capture is peculiarly interesting, inasmuch as the species was originally described 
from specimens taken in the Firth of Forth, and it seemed doubtful whether they 
might not have made their way thither from some neighbouring freshwater habitat. 
No other instance is on record, so far as I know, of a true Cyclops having been found 
living in the sea, and it is very remarkable that this New Zealand example, of the 
purely pelagic character of which there can be no doubt, should belong to the same 
species. 
I have thought it well to figure here some of the parts of the Otago specimen. 
The only difference between it and the Scottish examples is the greater width of the 
abdomen, which may, however, be accounted for by pressure. An interesting peculiarity 
of the species, in which both northern and southern forms agree, is the bipectinate 
character of the terminal spine of the inner branch of the fourth pair of feet (Pl. II. 
fig. 17a). In all other species these pectinations are represented by very fine seti. 
Genus O1tnona Baird. 
1, Orrnona spinirrons Boeck. 
Oithona spinifrons Boeck (1), p. 25. 
= a G. S. Brady (2), p. 90, pl. xiv. figs. 1-9, pl. xxiv A. figs. 1, 2. 
Frequent in surface gatherings from Otago Harbour, and in the tow-net at 7 fathoms 
off Gisborne. 
I cannot distinguish these specimens from those which I have already (/oc. crt.) 
described and figured under the above name. Dr, Giesbrecht disagrees with my 
