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pectinated, the two anterior ones have only a few secondary teeth. Tlie posterior edge of this
joint is irregularly undulated distally. forming a low cutting process. The end joint (fig. 10):
This is moderately chitinized. Usuallv it has six (in a single case seven) a-bristles of moderate
strength and length, naked or with sparse, weak secondary teeth; this joint has, in addition,
four b-bristles, four or five, in most cases five, c-bristles and three d-bristles. The b-bristles
are most frequently subequal, of moderate length and strength, the anterior une of them
sparsely but strongly pectinated, the rest usually only with a few secondary teeth in the middle.
The c-bristles are often placed somewhat irregularly, sonie of them about as long and strong as the
b-bristles, the others rather short and weak; the longer ones among them have rather powerful
but sparse secondary teeth, on the shorter ones the secondary teeth are fewer and weaker and
may even be quite absent. The d-bristles are somewhat longer than the b-bristles and very
powerful, especially the two anterior ones; they are armed with sparse, coarse secondary teeth,
the anterior ones most frequently with only a few of these. Pilosity: The epipodial plate of
the protopodite is partly furnished with fine hairs. The first endopodite joint has
anteriorly-distally groups of fine short hairs.
F i f t h 1 i m b: — Protopodite: The first endite (fig. 15) has in most cases
fourteen bristles; in one case among the specimens fromS/S „M i c h a e 1 Sars“ onlv thirteen
were observed, while the specimens from S/S „A n t a r c t i c“ had fourteen or fifteen bristles
on this piY^eiss. Of these bristles the inner-anterior one is rather short, almost bare or furnished
with one wreath or a few wreaths of long secondary bristles. The rest are moderately or rather
long, their relative length somewhat varying, in most cases being about what is shown in the
adjoining figure; they are all rather povreHul and have a varying, in most cases rather large
number of wreaths of long, stifï secondary bristies; most of them are fittecl distally with a
varying number of rather powerful secondary teeth, sonit- are bare distally. The five inner
bristles of the second endite (fig. 16) are rather powerful, subequal, of moderate length, all with
a number of wreaths of long, sti ff secondary bristles, the middle one of them finely serrated, the
rest with rather coarse secondary teeth distally, generally somewhat fe-wer and coarser on the
two posterior bristles than on the two anterior ones. The bristle a lit ide farther out on the
anterior side of this process is short, bare or almost bare. Third endite : (fig. 17) All seven
bristles are of moderate length, subequal except nos. 5 and 6, reckoning from the front, which
are somewhat shorter than the rest; the five anterior ones are rather powerful, the two posterior,
especially the most posterior, very powerful. The two anterior ones are of the same type as
each other, fitted with several wreaths of long, sti ff secondary bristles in the middle and rather
coarselv pectinated distally; the three middle ones are generally without long secondary bristles.
two of them are finely serrated, the third coarselv pectinated distally; the two posterior ones
have several wreaths or cross-rows of long, stiff secondary bristles in the middle, distally they
are somewhat bent and armed with a somewhat varying number of secondary teeth, of which
the proximal ones are very powerful. T h e e p i p o d i a 1 plate has about seventy to
eighty marginal bristles; on the ventral ones of these the distal third or quarter is naked or has
■short hairs, on those situated more dorsally the long hairs extencl still farther out towards the
point of the bristles; on all of them, however, the point itself is quite naked. The, structure
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