138 
tydeligt udviklede ^Eggeplader saalodos som lies de fieste 
nvrige Epicarider ; men synes alene at begrrendses at’ Krop- 
pens Hud, som her er ty micro og mere gjennemsigtig. 
Baglcroppen er af et meget eiendommeligt og fra de 
ovrige Bopyrider forskjelligt Udseende. Ben dannes kun 
af et enkelt Segment, dor liar Formen af en meget stor 
og bred, med en lialvcirkelformig boiet Rand eridende skjold- 
formig Plade, dor rager frem bagtil og delvis hvadver sig 
over Enclen af .Eggeposen. 
Dyrets Lemmcr er som lios andro Epicarider af et 
meget ufiildkommeiit Udseende og viser kun en hoist uty- 
delig Segmentering. De er alle sammentrmngte paa et 
forholdsvis meget lidet Rum under den f'orreste Del af Le- 
gemet, hvor de tilsammen danner et lidet mesten firkantet, 
i Midten noget fordvbet Felt, der fortil begrsendses af en 
temmelig stor balvmaaneformig Pandeplade (se Fig. 31 og 
32). Tydningen af disse Lemmer er ikke vanskelig. 
Fortil bennerkes i Midtlinien 2 brede, indad sammen- 
stodende Plader af triangulser Form, med det ydre Hjorne 
noget udtrukket og fremspringende. Dette er aabenbart 
Iste Par Folero. 
Til Siderne at disse ligger et Par andre noget for- 
skjelligt formede Lemmer, der forestiller 2det Par Folere. 
De er stanlct Sformigt bugtede og udtrukne i en konisk, 
frit fremragende og udadrettet Spids, paa hvilken det fore- 
kom mig der sad et Par rudiraentaere Burster. 
Bagenfor Fplerne og indtagende Midten af den oven- 
onitalte A red ligger en aflang trekantet Forlmiuing, der 
synes at forostille de til et Slags Sugeapparat omformede 
Munddele, hvis npiere Bygning dog ikke mermere kunde 
undersoges. 
Til liver Side af denne Mundarea sees 5 rundagtige 
Forhoininger, hvoraf dog den forreste ikke er tydeligt son- 
dret fra Pandepladen. Til disse Forhpininger er festet 5 
Par temmelig ufuldstsendigt udviklede Klamrefodder. Disse 
er alle af ens Udseende, gansko korte og rettede skraat 
indad mod Mundregionen, med den noget udvidede og med 
en hageformig Klo bevmbnede Ende noget tilbageboiet og 
frem spr ingende ne dad. 
Af andre Lemmer end de ovenomtalte Andes intet 
Spor, idet saavel de 2 sidste Forkropssegmenter som Bag- 
kroppen ganske mangier saaddnne. 
Hannen (Fig. 33), der fandtes fastklamret til Hunnens 
Bugside indunder Basis af Halepladen (se Fig. 31), er 
meget liden og af et lignende Udseende som Hannen af 
Phryxusarterne. Legemet er temmelig smalt og tydeligt seg- 
menteret, med dybe Indsnoringer meliem Segmenterne. Det 
affladede, mesten halvcirkelformige Hoved burner paa sin 
Underside 2 Par Folere, hvoraf det 2det jPar er lsengst 
og traadformigt, samt et kort Sugeror. De 7 Forkrops- 
segmenter er alle af ens Storrelse og Udseende, og hvert 
forsynet med et Par Klamrefpdder af samrne Beskaffenhed 
som hos Hunnen. Bagkroppen dannes af et enkelt tem- 
developed incubatory plates, as in most of the other Epi- 
caridce, but would appear to be exclusively bounded by the 
skin of the body, which, throughout this part, is thinner 
and more translucent. 
The posterior division of the body exhibits a most 
peculiar appearance, differing widely from that observed in 
all other Bopyridce. It consists of but one segment, that 
has the shape of a large and broad scutiform plate, jutting 
out posteriorly and in part arching over the extremity of 
the incubatory pouch. 
The appendages of the animal exhibit, as in other 
Epicaridce, a very rudimentary appearance, their segmentation 
being exceedingly indistinct. They are all crowded together 
over a relatively very limited space, beneath the foremost 
part of the body, forming there conjointly a small, well-nigh 
quadrangular, and in the middle somewhat depressed area, 
bounded anteriorly by a rather large, crescent-shaped frontal 
plate (see figs. 31, 32). The explication of these appen- 
dages is not difficult. 
Anteriorly, on the medial line, are observed 2 broad 
plates, of triangular form, meeting together inwards, with 
the outer angle somewhat produced and projecting. These 
are evidently the 1st pair of antennae. 
On either side of the plates, occur a pair of some- 
what differently formed appendages, representing the 2nd 
pair of antennae These are prominently flexuous, in the 
shape of the letter S, and produced to a conical, freely 
projecting, and outward-directed point, on which could be 
discerned a couple ol rudimentary bristles. 
Posterior to the antennae, and occupying the middle 
of the forementioned area, is seen an oblong, triangular 
prominence, representing, it would seem, the oral appendices 
transformed into a kind of suction-apparatus, the structure 
of which could not however be closely examined. 
On either side of this buccal area, occur 5 roundish 
prominences, ot which, however, the foremost is not dis- 
tinctly separated from the frontal plate. To these prom- 
inences are attached 5 pairs of rather incompletely devel- 
oped clasping legs. These are all of a uniform appearance, 
quite short, and directed obliquely inward, towards the oral 
region, and have the somewhat dilated extremity armed 
with a, hook-shaped claw, bent slightly back, and projecting 
downward. 
Ot other appendages, apart from those specified above, 
no trace can Vie detected, both the last 2 segments and 
the posterior division of the body having none whatever. 
The Male (Fig. 33), found clasped to the ventral side 
of the female, beneath the base of the caudal plate (see 
fig. 31), is exceedingly small, and similar in appearance to 
the male in the Phryxus species. The body comparatively 
slender and distinctly segmented, with deep instrietions 
between the segments. The bevelled, almost semicircular 
head bears on its under surface 2 pairs of antenna?, of 
which the 2nd pair is the longer, and filiform, together 
with a short suction -tube. The 7 segments belonging 
to the anterior division are all of them uniform in size 
and appearance, and each furnished with a pair of 
