152 THE ZOOLOGIST. 
ON ARMADILLIDIUM ALBUM, Doutrus, A RARE 
WOODLOUSE NEW TO THE FAUNA OF GREAT 
BRITAIN. 
By Ricuarp §. Baenatt, F.E.S. 
In a recent issue of ‘The Zoologist’ (1907, pp. 465-470), 
Mr. Bruce F. Cummings contributed an interesting paper on 
some Woodlice recently taken by himself in the neighbourhood 
of Barnstaple, and mentioned a small white species of Arma- 
dillidium which he was unable to identify. At my request 
Mr. Cummings kindly submitted examples to me, and I at once 
recognized them as being referable to Armadillidiwm album, 
described by M. Dollfus in 1887 as follows :— 
ARMADILLIDIUM ALBUM, N. sp.* 
Corpus valde convexum, crebre granulatum et minute hirsu- 
tum. Frons antice subrecta, medio nec depressa nec foveata. 
Oculi nigri, ocellis circiter 12. Epistoma scutello lineam fronta- 
lem vix superante eamque valde adpresso. Tubercula anten- 
naria parva, rotundate quadrangula. Antenne hirsute ; flagelli 
articulus prior altero triplo vel quadruplo brevior. Segmentum 
caudale latius quam longius et fere semisirculum. Articulus 
basalis pedum caudalium magnus ; ramus exterior parvus, multo 
brevior quam latior, ramus interior parvus, truncatus. Album, 
uniforme. Long. 6 millim., lat. 23-3 millim. Plage d’Arcachon. 
In the same publication M. Dollfus adds :-—‘‘18. A. album, 
A. D.—Plages de sable du Sud-Ouest, sous les pierres et les piéces 
de bois. Arcachon (Gaillard, A. D.), in coll. A. D.” 
In 1892 Dollfus published his ‘‘ Tableaux Synoptiques de la 
Faune Francaise: Le Genre Armadillidium,’ + a paper which 
should be in the hands of all naturalists interested in the 
* «* Diagnoses d’Hspeces Nouvelles de la Tribu des Armadilliens ”’ (‘ Bul- 
letin de la Société d’Etudes Scientifiques de Paris,’ 1887, p. 4) (separatum). 
+ “Catalogue des Espéces Francaises de la Tribu des Armadilliens,” 
loc. cit. p. 7 (separatum). 
