med en regelmessig Rad af temmelig lange, fint 
cilierede Randborster. 
De 8 Par Branchialfodder, som umiddelbart 
folger efter Kjewverne, er alle byggede efter samme 
Type og ligger tet ind mod hinanden i Form af 
tverstillede Plader, noget mere convexe fortil end / 
bagtil (se Tab. II, Fig-1). De tiltager noget i Stor- 
relse indtil 4de Par og aftager saa igjen successivt 
bagtil. Paa dem alle kan man (se Tab. III, Fig. 
3—6) adskille 3 fra en felles Basis udgaaende Ho- 
veddele, som vi, i Lighed med hvad man pleier 
hos andre Krebsdyr, kan benevne: Endopodit (p), 
Exopodit (ex) og Epipodit (ep).. Den felles Basaldel 
bestaar, som paa 2det Par Kjever, af 2 ufuldkom- 
ment sondrede Segmenter, der i Inderkanten har en 
dobbelt Rad af Borster, hvoraf de paa 1ste Segment 
delvis udmerker sig ved betydelig Langde. Endo- 
poditen (p), der danner den umiddelbare Fortsettelse 
af Basaldelen, danner en mod Enden successivt af- 
smalnende Stamme, paa hvilken der er en svag An- 
tydning til Segmentering. Denne Del er hos den 
zgberende Hun betydelig sterkere forlenget end 
hos yngre Individer af begge Kjon og har sidste 
Led vel sondret, noget omboiet og besat med ser- 
deles lange divergerende Fjerborster, der delvis 
rager frem nedenfor Rygskjoldets Valvler (se Tab. I, 
Fig. 1). Forovrigt er Endopoditen langs hele Inder- 
kanten besat med Borster, der fordetmeste er ord- 
nede i en dobbelt Rad og umiddelbart fortsetter de 
paa Basaldelen forekommende Borstereekker. Exo- 
poditen (ex), der er festet til Basaldelens 2det 
Segment, udenom Endopoditen, har Characteren af 
en bred, langs Midten med en noget fortykket 
_ Ribbe forsynet Plade, noget forskjellig i Form paa 
de forskjellige Branchialfodder. Paa Iste Par (Tab. 
III, Fig. 3) er den regelmessig oval og i Yderkanten 
besat med en Rad af circa 18 tynde Borster, til- 
tagende i Lengde mod Spidsen. Paa de folgende 
Par (Fig. 4, 5) bliver den successivt noget sterre og 
sterkere udvidet i Enden, som er skjevt afrundet 
og kun besat med faa og spredte Randborster. Paa 
sidste Par endelig (Fig. 6) har den antaget en tem- 
melig smal elliptisk Form. Epipoditen (ep), der ved 
en kort Stilk er festet til Ydersiden af Basaldelens 
Iste Segment, er af serdeles betydelig Storrelse, saa. 
at den mere eller mindre fuldstendigt dekker de 
evrige Dele, naar disse Lemmer sees in situ fra 
Ydersiden (se Tab. II, Fig. 1). Den har Formen af 
en elliptisk eller nesten halvymaanedannet Plade og 
gaar ud i en dorsal og en ventral Lap, adskilte i 
Midten ved en tvers over Epipoditen fra dennes 
Feste lobende fortykket Ribbe. Ligesom Tilfeldet 
var med Exopoditen, er der ogsaa nogen Forskjel i | 
Epipoditens Storrelse og Form paa de forskjellige 
18 
than the inner one and scarcely extends beyond its 
Ist joint. It has the form of a very narrow ellip- 
tical lamella which, along the entire inner mar- 
gin and at the point, is furnished with a regular 
series of pretty long finely ciliated marginal bristles. 
The 8 pairs of branchial legs which immediately 
succeed the maxille, are all constructed on the same 
type, and lie close in to each other in the form of 
transversally placed lamelle, rather more convex in 
front than behind (see Pl. I, fig. I). They increase 
somewhat in size as far as to the 4th pair and then 
gradually diminish backwards. In all of them 3 
chief portions issuing from a common base (see PI. 
III, figs. 3—6) may be distinguished, which we, like 
what we are accustomed to do with other crusta- 
ceans, may term endopodite (p), exopodite (ex) and 
epipodite (ep). The common basal part consists, as 
in the 2nd pair of maxille, of 2 imperfectly sepa- 
rated segments which have a double series of brist- 
les on the inner margin, of which those on the first 
segment are distinguished by their great length. 
The endopodite (p) which forms the immediate con- 
tinuation of the basal part forms a trunk, dimi- 
nishing gradually towards the extremity, upon which 
there is a faint indication of a segmentation. This 
part is, in the ovigerous female, considerably more 
prolonged them in young individuals of both sexes, 
and has the terminal joint well separated, somewhat 
recurvate and beset with particularly long divergent 
and plumose bristles, which partly project below the 
valves of the carapace (see Pl. I, fig. 1). The endo- 
podite is, otherwise, beset with bristles along the 
entire inner margin, which are chiefly arranged in a 
double series, and are immediate continuations of 
the bristle series appearing on the basal part. The 
exopodite (ex), which is attached to the 2nd seg- 
ment of the basal part, outside the endopodite, has 
the character of a broad lamella, furnished along the 
middle with a somewhat thickened rib, and is a little 
different in form in the various branchial legs. In 
the 1st pair (PI. JII, fig. 3) it is regularly oval and 
beset on the outer edge with a series of about 18 
slender bristles increasing in length towards the point. 
In the succeeding pairs (figs. 4.5) it becomes gradu- 
ally somewhat larger and more strongly expanded 
at the point, which is unevenly rounded and beset 
with only few and scattered marginal bristles. Fin- 
ally, in the last pair (fig. 6) it has assumed a pretty 
narrow elliptical form. The epipodite (ep), which is 
attached by a short stem to the outer side of the 
1st. segment of the basal: part, is of particularly 
large size, so that it more or less completely covers 
the remaining parts when those appendages are 
viewed in situ from the outer side (see Pl. II, fig. 1). 
It has the form of an elliptical, or almost semilunar 
plate, and passes out into a dorsal and a ventral 
lobe divided in the middle by a thickened rib which 
