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distance distaily of the point of the process. The dorsal serrate teetli are rather few, but large.
The main spine is moderately developed. Four ventral spines are developed, of which the two
distal ones are very weak, scarcely perceptible. On the part distaily of the main spine four
or five transverse rows of hairs were observed. The rod-shaped process seems to be armed
distally with three short, coarse spines. Basale: The backward pointing process has four distal
bristles, three or four triaena bristles and two dwarf bristles; on the specimen investigated the
left mandible was armed with four triaena bristles, the right one with only three; it looked,
however, as if the latter limb too had originally had four of these bristles. On both limbs the
anterior triaena bristle was rather decidedly reduced; it was only about half the length of the
others. The triaena bristles are armed with from two to five pairs of spines proximally of the
main pair of spines. The glands of this process emerge on an almost entirely reduced peg. At
about the middle of the dorsal side of this joint there is a single bristle, which is about half as
long as the dorsal side of this joint and has short, fine hairs distaily. In addition this joint
has a few groups of short fine, stifï hairs dorsally on the outside. The e x o p o d i t e is, if
its two distal bristles are included, about two-thirds of the length of the anterior side of the first
endopodite joint. E n d o p o d i t e: Of the three ventral bristles on the first joint the shortest
one has, somewhat proximally of the middle, about ten to fifteen long secondary bristles arranged
on all sides; distaily of these there are short hairs. The two other of these bristles hâve no short
secondary bristles proximally of the long ones. This joint is not armed antero-distally with
spines. Second joint: this has two proximal bristles (length?). There is no long, narrow,
short-haired bristle between the main bristles b and c. The medial cleaning bristles were alike on the
right and left mandibles of the specimens investigated: there were five bristles in a distinct lower
row, two bristles below the main bristle b and one between the main bristles a and b. The end
claw is powerful and about as long as the anterior side of the first endopodite joint; it is smooth.
Maxilla (fig. 6) : — Protopodite: The distal endite is armed with three subequal
bristles. The dorso-proximal bristle is short. The basale has one moderately long ventral bristle
and one dorso-distal bristle which is somewhat shorter tlian the former bristle. This joint has
a short ventero-distal bristle developed, though it is extremely short and weak. Endopodite:
The postero-distal bristle of the first joint is about as long as or only slightly shorter than the
bristle of the end joint.
Sixtli limb: -— This seems to have six anterior ventral bristles; the number of
posterior ventral bristles could not be determined with certainty. On the anterior edge of this
limb there are, besides the two bristles that are usually found in species of this genus, five
additional rather short bristles (these were found only on the limb of one side; that of the other
side was defective at this place).
’Se venth limb: — This is armed with fifteen or sixteen cleaning bristles of moderate
and somewhat different len"ths; of these bristles six are situated distallv on the limb, three
on eacli side, the others are scattered somewhat proximally of the former ones; there are about
the sanie number on eacli side. Each cleaning bristle is armed with only from one to three
bells. Each end comb consists of about eight teeth, which are finely, evenly and similarly
pectiu-ated (about the same as is shown in fig. 13 of A. quinquesetae).
Zoolog, bidraev Uppsala. Suppi -TM. T.
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