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as it is very common both in Sweden and Denmark. The figures here given
are from specimens kindly sent to me from the Museum of Copenhagen.
Distribution. Throughout the whole of Europe and the adjacent parts
of Africa and Asia; Madeira, New York, Montevideo, Melbourne.
2. Armadillidium opaeum, (Koch).
(PI. LXXXIII, fig. 1.)
Armadillo opacus, Koch, Deutschl. Crust, etc. 34, fig. 2. 3.
: Syn Armadillidium consparsum, Zaddacli.
sulcatum, B.-Lund (not M.-Edw.)
Specific Characters. Very like the preceding species as to its general
appearance, but of somewhat smaller size. Cephalon with the frontal margin
slightly arched, and surpassed by the epistomal shield. .Side-plates of meso-
some discontiguous. Last segment of mesosome very broad, bluntly rounded
at the tip. Antenna; with the last joint of the fiagellum nearly twice as long
as the 1st. Colour of dorsal face light grey, irregularly variegated with darker
patches. Length
9 mm.
h'rmarks. This species was at first confounded by
B.-Lund with the Al-
gerian form A. sulcatum M.-Edw.; but in a supplement to his work he has kept
it apart from that species. It is very like A. vulyare, but, on a closer examina-
tion, it may be distinguished by the' somewhat different form of the cephalon and
of the last segment of the metasome, as also by the different colour of the body.
Occurrence. From Norway this species has not yet been recorded, but,
as it is not uncommon in Denmark together with A. vulgare,
it is most pro-
bable, that, on a closer investigation, it will be found to exist also in this
country. The figures here given are from a somewhat incomplet specimen kindly
sent to me from the Museum of Copenhagen.
Distribution. Denmark, Germany,
B< (hernia.
3. Armadillidium pietum, Brandt.
(PI. LXXXIII, fig. a.)
Armadillidium i>idum, Brandt. Consp. pag. 24, fig.
t.
Syn: Armadillidium Grubci, Zaddach.
Kjx'cific Character*. - Body oblong oval or elliptical
in form,
with the
dor-;il I;HT strongly vaulted and perfectly smooth and shiny. Cephalon with the
frontal edge somewhat prominent in the middle, lateral corners comparatively
small, rounded. Side-plates of 1st segment of mesosome with the posterior corner