72 
sig blandt andet dorved, at der til Ydersiden af sidste Led 
er fsestet en stserkt udviklet saakaldt Horeborste (se Fig. 23). 
Sidste Par (Fig. 24) er noget mindre end de ovrige og 
mangier Horeborsten paa sidste Led, hvorimod der langs 
den ydre Kant af Basalleddet er faestet Here saadanne. 
Brystposen. hvori iEggene optages og Ungerne under- 
gaar sin fefrste Udvikling, dannes af 8 Plader. der udspringer 
fra Basis af Gravefodderne og de 3 forreste Par Gangfpdder. 
De var paa de erholdte Exemplar®* endnu ikke fuldt ud- 
viklede og havde Udseendet af korte stilkede Blserer (se 
Fig. 2 og 3). 
Bagkroppens Buglemmer er tilstede i 5 Par. svarende 
til de 5 forreste Segmenter. De bestaar (se Fig. 25) af 
en smalt cylindrisk Stamme og 2 smale pladeformige Grener, 
hvoraf den ydre. uligt hvad Tilfseldet er bos Skegten Ap- 
seudes. er sammensat af 2 tvdeligt begrsendsede Segmenter. 
Ved Spidsen er begge Grener forsynede med lange Fjaer- 
borster. 8 paa den indre og 9 paa den ydre Gren. Des- 
uden har denne sidste Gren paa Midten af den ydre Kant 
og red Euden a.f dens lste Segment en lignende Fjserbprste, 
og til Indersiden af den indre Gren er faestet til en saeregen 
Afsats en noget grovere, tornformig Borste. 
Halevedhamgeue (se Fig. 2(i) er omtrent af Bagkrop- 
pens Lsengde og bestaar ligeledes af en Stamme og 2 Grene. 
Stammen udspringer til bver Side af sidste Segment fra en 
saeregen Afsats og er ganske kort snmt noget udvidet mod 
Euden. Grenene er smale. traadformige og af meget ulige 
Lsengde, Den indre og lsengste er sammensat af 10 Led. 
bvoraf ialmindebgbed hvert andet baerer nogle lange Burster 
ved Enden; sidste Led har ved Spidsen en Dusk af 4 saa- 
danue. Den ydre Gren er kun lidet lsengere end Stammen 
og bestaar kun af 3 Led, bvoraf det sidste er lsengst og 
ved Spidsen forsynet med 2 Borster. 
Den fuldt udviklede Han (Fig. 27) er noget stprre 
end Hunnen og af forholdsvis betydelig smaskrere Krops- 
form. Den kjendes desuden let ved den eiendommelige 
Udvikling af lste Par Folere og de 2 forste Fodpar. 
lste Par Folere (Fig. 28) bar Skaftet og den indre 
Svobe af samme Udseende som bos Hunnen. Derimod er 
den ydre Svebe betydelig kraftigere udviklet og sammensat 
af 7 Led. der alle med Undtagelse af det sidste er forsynede 
med et tad Knippe af sundries lange, vifteformigt diverge- 
rende Sandseborster. 
Saxfodderne (Fig. 27 og 28) viser et fra samme bos 
Hunnen temmelig afvigende Udseende. Basaldelen er be- 
tydelig storre og de 2 Haanden forudgaaende Led over- 
ordentlig stserkt forlsengede og tvnde samt indbyrdes nsesten 
af ens Lsengde. Selve Haanden er omtrent af samme Ster- 
relse som bos Hunnen, men skiller sig derved. at Fingrene 
i den indre Kant har skarpere Smaatamder. Ved Basis af 
others, and the 2 succeeding pairs (fig. 22) may be disting- 
uished by their ha ving, among other characteristics, a strongly 
developed, so-called auditory, bristle (see fig. 23) attached to 
the outer side of the terminal joint. The last pair (fig. 24) 
are somewhat smaller than the others, and without any 
auditory bristle on the terminal joint, whereas several such 
bristles occur along the outer margin of the basal joint. 
The marsupium, in which the eggs are deposited and 
the young undergo their first development, is composed of 
8 plates, proceeding from the base of the fossorial legs and 
the 3 most anterior pairs of pereiopoda. In the specimens 
taken, they were not fully developed, and presented the 
appearance of short, pedunculated vesicles (see tigs. 2. 3). 
The pleopoda are present in 5 pairs, corresponding to 
the 5 foremost segments of the abdomen. They consist 
(see fig. 25) of a slender, cylindric stem and 2 narrow, 
lamelliform branches, of which the outer, contrary to what 
is the case in the genus Apseudes, is composed of 2 dis- 
tinctly defined segments. At the point, both branches are 
provided with long, plumose bristles, 8 on the inner and 9 
on (lie outer branch. Moreover, the latter branch has in 
the middle of its outer margin and at the extremity of the 
1st segment, a similar plumose bristle, and on the inner side 
of the inner branch is attached, to a ledge-like projection, 
a somewhat coarser, spiniform bristle. 
The caudal appendages (see fig. 26) about equal in 
length the posterior division of the body, and also consist 
of a stem and 2 branches. The stem springs, on either 
side of the terminal segment, from a ledge-like projection, 
and is quite short, as also somewhat dilated at the ex- 
tremity. The branches are slender, filiform, and very 
unequal in length. The inner and longer of the two is 
composed of 10 joints, of which every other joint as a rule 
bears a. few long bristles at the extremity ; the last joint has 
a tuft of 4 such bristles. The outer branch is hut little 
longer than the stem, and consists of only 3 joints, of 
which the last is longest and furnished at the point with 
2 bristles. 
The fully developed Male (fig. 27) is somewhat larger 
than the female, and has the body of a comparatively much 
more slender form. Moreover, it may be readily distinguished 
by the peculiar development of the 1st pair of antennae 
and of the 2 first pairs of legs. 
The 1st pair of antennae (fig. 28) have the peduncle 
and the inner flagellum of the same appearance as in the 
female. On the other hand, the outer flagellum is much 
more powerfully developed, consisting of 7 joints, all of 
which, with the exception of the last, aim furnished with a 
dense fascicle of exceedingly long, fla belliform-divergent sen- 
sory bristles. 
The chelipeds (figs. 27, 29) exhibit a rather deviating 
appearance from those in the female. The basal part is 
much larger, and the 2 joints preceding the hand are 
remarkably elongate and slender, as also about equal in 
length. The hand itself is very nearly of the same size as 
that in the female, but differs in the inner margin of the 
fingers having sharper denticles. Moreover, at the base 
V 
