75 
var tilstede som et Rudiment, er her meget sterkt | The outermost, or 5th endite, which in the first 
udviklet, fuldkommen saa lang som den 4de, og ud- 
preget kloformig. Den er i Yderkanten besat med 
fine Borster og har Inderkanten fint og regelmessigt 
sagtakket. Coxallappen er noiagtig af samme Ud- 
seende som paa Iste Par. Derimod er de 2 ydre 
Vedheng, og navnlig Exopoditen (ex) forholdsvis 
storre. 
De folgende 7 Par gaar successivt over til at 
antage det Udseende, som 10de Fodpar viser. Dette 
sidste (Fig. 16) er idethele kortere og mere sammen- 
trengt, uden nogen tydelig Segmentering eller kne- 
formig Boining af Stammen. Coxallappen er for- 
holdsvis noget mindre end paa de 2 forreste Par og 
mere lige indadrettet. Enditerne er kortere og bre- 
dere, nesten pladeformige, og den yderste bredt 
lancetformig samt tet borstebesat i den ydre Kant. 
De ydre Vedheeng er begge af anselig Storrelse, og 
navnlig Exopoditen (ex) betydelig storre end paa de 
forreste Par; dens Form er ogsaa noget forskjellig, 
idet den er mere oval, med den nedre Flig bredt 
afrundet. 
llte Fodpar (Fig. 17) viser et fra de ovrige 
Fodder meget afvigende Udseende, idet de 2 ydre 
Vedheng her er omdannede paa en eiendommelig 
Maade, saa at de tilsammen danner en eskeformig 
Kapsel, hvori Aiggene midlertidigt optages, for at 
forsynes med sin Skal. Laaget af Kapselen, der 
vender fortil og er af regelmessig circuler Form, 
dannes af Epipoditen, medens Bunden af Kapselen 
udgjores af Exopoditen. Ogsaa denne er af tilrun- 
det Form, men noget bredere end Epipoditen, og 
udspringer med en bred Basis fra Stammen. Begge 
slutter temmelig noie sammen, dog saaledes, at der 
paa den ydre Side er en rendeformig Fordybning, 
der dannes af de omboiede Kanter af Exopoditen. 
Selve Stammen er kort og bred, pladeformig, og den 
yderste Endit ikke tydeligt begrendset, dannende 
en umiddelbar Fortsettelse af Stammen i Form af 
en triangular Lap. 
12te Fodpar (Fig. 18) viser igjen et mere nor- 
malt Udseende og stemmer idethele i sin Bygning 
noie overens med 10de Par, naar undtages, at det 
er mindre og har den yderste Endit forholdsvis kor- 
tere og bredere. Det samme er ogsaa Tilfeeldet med 
Exopoditen, hvis nedre Del-er mindre fremsprin- 
gende. » 
_ De folgende Fodpar aftager successivt i Stor- 
relse og bliver tilsidst ganske rudimentere, skjondt 
alle de Dele, der findes paa de foregaaende Par, 
lader sig paavise. 
Fig. 19 fremstiller en Fod af et af de bagerste 
Par ved samme Forstorrelse som de foregaaende 
Par. Det vil sees, at Enditerne er betydeligt redu- 
pair was only found as a rudiment, is here very 
strongly developed, is fully as long as the 4th, and 
of a pronounced claw-like shape. The outer edge 
is clothed with fine bristles, and the inner edge 
finely and regularly serrated. The coxal lobe is of 
exactly the same appearance as in the first pair. 
The two outer appendages, on the other hand, 
and especially the exopodite (ex), are comparatively 
larger. 
Through the 7 succeeding pairs there is a 
gradual transition to the ‘appearance of the 10th 
pair of legs. This pair (fig. 16) is on the whole 
shorter and more compact, without any distinct seg- 
mentation or geniculation of the stem. The coxal 
lobe is relatively rather smaller than that in the 
foremost 2 pairs, and its direction is more directly 
inwards. The endites are shorter and broader, al- 
most lamellar, the outermost being broadly lanceolate 
in form, and densely setous on the distal edge. The 
outer appendages are both of considerable size, the 
exopodite (ex) especially being much larger than in 
the foremost pairs. Its shape is also somewhat dif- 
ferent, being more oval, and the lower lobe more 
broadly rounded. 
The 11th pair of legs (fig. 17) exhibits a very 
different appearance from the others, the 2 outer 
appendages being transformed in a peculiar manner, 
so as together to form a box-like capsule in which 
the ova are temporarily received in order to be fur- 
nished with their shell. The lid of the capsule, 
which turns to the front, and is of a regularly cir- 
cular shape, is formed by the epipodite, while the 
bottom of the capsule consists of the exopodite. 
This, too, is of a rounded form, but rather broader 
than the epipodite, and issues with a broad base 
from the stem. The two parts fit together tolerably 
exactly, yet in such a manner that on the outer 
side there is a channel-like hollow formed by the 
decurved edges of the exopodite. The stem itself is 
short, broad and lamellar: the outermost endite is 
not clearly defined, and forms a direct continuation 
of the stem in the shape of a triangular lobe. 
The 12th pair of legs (fig. 18) exhibits a more 
normal appearance, and, on the whole, agrees very 
nearly in its structure with the 10th pair, excepting 
that it is smaller, and that the outermost endite is 
relatively shorter and broader, This is also the 
case with the exopodite, the lower part of which is 
less projecting. 
The succeeding pairs of legs decrease succes- 
sively in size, and at last become quite rudimen- 
tary, although it is possible to distinguish all the 
parts that are found in the preceding’ pairs, 
Fig. 19 represents a leg of one of the hindmost 
pairs magnified with the same power as the pre- 
ceding pairs. It will be seen that the endites are 
