238 
niedeLis den korte 6-leddede Endedel mod en mere eller 
mindre tydelig kuadbrmig Boining retter sig bagud. Ba- 
salleddet liar iortil 3 stumpe Fremspring, livert besat med 
3 korte Burster. 2det Led er betydelig laengere, af noget 
tendannet Form, stserkt muskulost og kun forsynet med 3 
simple Burster paa Midten af den bagre Kant. Den korte 
Endedel er ligeledes i den bagre Kant bevsebnet med 8 
10 saerdeles staerke leformig krummede og bagudrettede Klor. 
Imellem dette Kjaevefodpar og lste Fodpar er (se 
Fig. 2) et storre Mellemrum, der bidtages af et i Midt- 
linieu fremspringende kjplformigt Parti, der ogsaa er til- 
stede hos mange andre Calanider. 
Af de 4 Par Svpmmefodder er det lste (Fig. 10) 
betydelig mindre end de ovrige og svagere chitiniseret. jj 
Den ydre Gren er neppe lasngere end den Sleddede Stamme i 
og bestaar kun af 2 Led, idet de 2 forste ikke er tydeligt 
adskilte. bidste Led er ganske smalt og barren i den indre 
Kant 4 lange Svommeborster foruden en kort simpel Borste 
\ed Spidsen ; en lignende Svumineborste udgaar ogsaa indad 
fxa Endeu af det foregaaende Xjed. Den indre Gren er 
meget liden, 1-leddet og noget udvidet paa Midten samt i 
den indre Kant og ved Spidsen forsynet med 5 Svqmme- 
borster. Yed dens Basis udgaar fra Enden af Stammen 
en tynd, noget bugtet Bprste. 
2 det Par Svommefodder (Fig. 11) er betydelig kraf- 
tigere udviklet. Til Indersiden af Stammens lste Led er 
fsestet en steerk Fjaerbprste, hvorimod sidste Led mangier 
Bprster og kun riser i den indre Kant en tset Ciliering. 
Af Grenene er den ydre saerdeles stor, Gang til saa 
lang som Stammen og er delt i 3 tydeligt begramdsede ( 
Led, hvoraf det lste el mindst. Saavel dette som det be- 
tydelig bredere 2det Led bar i den ydre Kant fsestet til en 
stump Fortsats en kort Torn og indad en Svommeborste. 
Sidste Led er saa langt som begge de foregaaende tilsam- 
men, sterkt sammentrykt og bredest ved Basis samt i den 
ydre Kant forsynet med 2 til sseregne papilleagtige Fort- 
satser fiestede Torner. Fra dets indre Kant udgaar 3 
Svommcborster og fra den afstuinpede Spids indad en lig- 
nende Svominebprste, udad en kort Torn og i Midten en 
saerdeles kraftig, i den ydre Kant grovt saugtakket Pig. 
Den indre Gren er neppe halvt saa lang som den ydre og 
betydelig smalere. Den er ligesom paa lste Par 1-leddet, 
skjondt der er en Antydning til en Sondring af et kort 
Basalled. Den baerer ialt 6 Svommeborster, hvoraf 1 ud- 
gaar fra den ydre Kant, 2 fra Spidsen og de 3 ovrige fra 
den indre Kant. 
De 2 folgende Par Svommefodder (Fig. 12) adskiller 
sig vaesentlig kun fra 2det Par derved, at den indre Gren 
er delt i 3 tydeligt begraendsede Led og baerer 1 Svomine- 
borste flere. 
Af noget 5te Fodpar er ikke det mindste Rudiment 
at opdage. 
shaped bend, whereas the short, six-jointed terminal part 
points backward, with a more or less distinct geniculate 
bend. The basal joint has anteriorly 3 obtuse probations, 
each bearing 3 short bristles. The 2nd joint is consider- 
ably longer, somewhat fusiform, exceedingly muscular, and 
furnished with only 3 simple bristles, in the middle of the 
posterior margin. The short terminal portion is likewise 
armed along the posterior margin with from 8 to 10 ex- 
ceedingly strong, falciform, and backward-directed claws. 
Between this pair of maxillipeds and the 1st pair 
of legs (see fig. 2) extends a comparatively wide interspace, 
occupied by a keel-shaped area projecting along the median 
line — also present in many other Calanidians. 
Of the 4 pairs of natatory legs, the 1st (fig. 10) is 
considerably smaller than the others, and less decidedly 
chitinous. The outer branch is scarcely at all longer 
than the two-jointed stem, and consists of only 2 articula- 
tions, the 2 first being not distinctly separated. The last 
joint is quite slender, and bears on the inner margin 4 
long natatory setar, besides a short, simple bristle at the 
point; a similar natatory seta also proceeds inward from 
the end of the preceding articulation. The inner branch 
is very small, uni-articulate, and somewhat dilated in the 
middle, as also, on the inner margin and at the point, 
furnished with 5 natatory bristles. At the base, is seen 
• issuing from the extremity of the stem a slender, somewhat 
curved bristle. 
The 2nd pair of natatory legs (fig. 11) are much more 
powerfully developed. To the inner surface of the 1st joint 
of the stem, is affixed a strong plumous bristle, whereas 
the last joint has no trace of bristles, and exhibits only 
along the inner margin a dense ciliation. Of the branches, 
the outer is exceedingly large, half as long again as the 
stem, and divided into 3 distinctly defined articulations, 
the 1st being the smallest. Both this and the much 
broader 2nd joint, have on the outer margin, affixed to 
an obtuse prolation, a short spine, and inwards a natatory 
bristle. The last joint equals in length the two preceding 
ones taken together, is greatly compressed, and broadest 
at the base, as also on the outer margin furnished with 2 
spines, affixed to special papillary probations. From its 
inner margin proceed 3 natatory bristles, and springing from 
the obtuse point, extends inward a similar natatory bristle, 
outward a short spine, and in the middle an exceedingly 
powerful, along its outer' margin coarsely serrate spike. 
The inner branch is scarcely half as long as the outer, 
and much more slender. As on the 1st pair, it is uni- 
articulate, though a faint indication may be detected of 
a short basal joint. It bears in all 6 natatory bristles, 
of which 1 issues from the outer margin, 2 from the 
point, and the other 3 from the inner margin. 
The 2 succeeding pairs of natatory legs (fig. 12) are 
distinguished from the 2nd pair chiefly by the inner branch 
being divided into 3 distinctly defined articulations and by 
its bearing an additional natatory bristle. 
Of a 5th pair of legs, not the slightest rudiment .can 
be discerned. 
