The British Woodlice: Being a Monograph of the Terrestrial Isopod Crustacea Occurring in the British Islands — John Shaqi
The British Woodlice: Being a Monograph of the Terrestrial Isopod Crustacea Occurring in the British IslandsWebb, Wilfred Mark
Science
The British Woodlice: Being a Monograph of the Terrestrial Isopod Crustacea Occurring in the British Islands
Webb, Wilfred Mark
Crustacea -- Great Britain; Oniscidae
_BRITISH LOCALITIES:--_
_England_: Warley; (W.M.W): Maldon; (W.M.W. from R.M.):
Brightlingsea; Hanwell; Mortlake; Bluebell Hill, Maidstone;
Langley; Skirmett; Pamber Forest; Kingston-on-Soar; Ipswich;
(W.M.W.); Lynmouth; (W.M.W. from J.T.C.)
_Scotland_: (Scott, 68.)
_Ireland_: Ardrahan; (Norman, 50): Borris, Co. Carlow; Glandare,
Terneay, Co. Cork; Courtstown, Co. Wexford; Cappagh, Co.
Waterford; Castel, Co. Tipperary; (R.F.S.)
_FOREIGN DISTRIBUTION:--_
_Europe_: Throughout; (23).
_Asia_: Damascus; (23).
_Africa_: Algeria; (23).
_Atlantic Isles_: (23).
_America_: North and South; (23).
_Australia_: Melbourne (64 quoting Budde-Lund); New Zealand; (23).
=Armadillidium pulchellum= Zencker. PLATE XXIV.
1799 _Oniscus pulchellus_ Zencker (78) (quoted by Koch in Panzer),
part 62, pl. XXI.
1833 _Armadillidium pulchellum_ Brandt (3), p. 188.
1861 _Armadillo maculatus_ Sill (69), p. 5.
1870 _Armadillidium pictum_ Plateau (not Brandt) (55), p. 116.
1898 _Armadillidium pulchellum_ Sars (59), p. 191, pl. LXXXIII.,
fig. 4.
The smallest British species is _Armadillidium pulchellum_. The frontal
lobe projects so as to make the head somewhat triangular. The antennæ
are very short and the distal joint of the flagellum is three times the
length of the other, while the two together are not as long as the last
peduncular joint.
[Illustration: FIG. 58.--FLAGELLUM AND LAST PEDUNCULAR JOINT OF THE
ANTENNA OF _Armadillidium pulchellum_.]
The telson is truncated at the end so that it is by no means as long as
it is broad at the base, and the outer divisions of the tail appendages
are in similar proportion.
The colour of the body (which is smooth) is dark brown with four
important series of light patches running down the back and less marked
variegations between them.
_BRITISH LOCALITIES:--_
_England_: Matlock; (T.R.R.S.) Arnside; Westmorland (Brady, 50a).
_Ireland_: Ballymote, (Irish Nat., May, 1901), Sligo; (Scharff).
_FOREIGN DISTRIBUTION:--_
_Europe_: Vosges; Switzerland; Pyrenees; (23): Forest de Soignes;
Belgium; (14).
=Armadillidium depressum= Brandt. PLATE XXV.
1833 _Armadillidium depressum_ Brandt (3), p. 82. pl. XII.,
figs, 4, 5, 6, C, D.
1892 _Armadillidium depressum_ Dollfus (14), p. 17-18.
The frontal lobe in _Armadillidium depressum_ is very prominent and
much recurved. The antennæ are fairly long and while the two joints
of the flagellum are nearly equal they are together not so long as
the last peduncular joint.
[Illustration: FIG. 59.--FLAGELLUM AND LAST PEDUNCULAR JOINT OF THE
ANTENNA OF _Armadillidium depressum_.]
The telson is slightly longer than it is broad at the base, and its
sides are incurved. As in _Armadillidium vulgare_ and _Armadillidium
pulchellum_ the outer divisions of the tail appendages are broader
than they are long.
Public-domain text, read in full here on John Shaqi.
Reviews
Reviews
No reviews yet
Be the first to share your thoughts on this work.
Join the Discussion
Join the discussion
Sign in to leave a comment or review.
Sign InorCreate an account