THE BRITISH WOODLICE. 27 
Haplophthalmus danicus Budde-Lund. Prate VIII. 
1870 Haplophthalmus elegans Budde-Lund 6), p. 228 (not Haplophthalinus 
elegans Schobl). 
1879 Haplophthalmus danicus Budde-Lund (7), p. 9. 
1881 Haplophthalmus mengii Weber (76), p. 192, pl. V., figs. 7-9 (not Itea 
mengit Zaddach). 
1885 Haplophthalmus danicus Budde-Lund (8), p. 250. 
1898 Haplophthalmus danicus Sars (59), p. 168, pl. LXXIV., fig. 2. 
This species was added to the British list by the Rev. Canon 
Norman (49), who found a colony in his garden 
at Berkhamsted. It has rows of tubercles on 
its thorax instead of ridges, and there are no 
ribs at all upon the abdomen, The front of the 
head projects further comparatively and forms 
a more acute point than in Haplophthalmns mengit 
and it is not so purely white in colour as the 
latter species. 
BRITISH LOCALITIES :— x 
England: Warley Place; (W.M.W. from 
Miss Willmott): Queen’s Cottage, Kew Gar- 
dens; Stanmore; Hanwell, garden at Odstock, 
Bennett’s Nurseries ;(W.M.W.): Berkhamsted ; 
(Norman, 49): Sunderland ; (Brady, 50a). 
FOREIGN DISTRIBUTION :— 
FIG, 42.— FLAGELLUM 
Europe: France ; (25); Denmark; Holland; Germany ; ANDLASTPEDUNCULAR 
ci OINT OF THE ANTENNA 
(Dollfus, Feu de Jeun, Nat., April, 189£) > Norway ; lee Haplophthalmus 
(Sars, 59). danicus. 
Section—ONISCI. 
THE OUTER DIVISIONS OF THE TAIL APPENDAGES BROADER THAN 
THE INNER ONES. 
Famly—ONISCIDE. 
Tail appendages projecting when the animal is walking. 
(1.) Unable to roll up into a complete ball. 
Genus—ONISCUS Linné 1746 (41), p. 360. 
Flagellum, with three joints ; abdomen broad ; head with lateral lobes. 
or 
ie ee 
age 
The characters given above taken in conjunction with the 
size of the animals will serve to distinguish the members of 
this genus. 
Oniscus asellus Linné (The “‘ Common Slater.”) PLate IX. 
1761 Ontseus asellus Linné (41), p. 500, No, 2058. 
1792 Oniscus murarius Cuvier (9), p. 22, pl. XXVI. 
1838 Onztscus fossor Koch (34), part 22, pl. XXII. 
1868 Oniscus asellus Bate and Westwood (1), p. 468. 
1868 Oniscus fossor Bate and Westwood (1), pp. 471-2. 
1898 Onzsscus asellus Sars (59), p. 171, pl. LXXYV. 
