THE NATURAL HISTORY OF STEEP HOLM. 147 
PUPID/E. 
Ena obscurus Mull. ( = Bulimiseus obscurus Mull.) 
Pupa secale Drap. A few taken in the rock crevices on the 
S.W. side. 
P. cylindracea De Costa. Common in similar situations. 
Vertigo pygmoea Drap. Only two or three specimens obtained, 
but on further search it may be found more plentiful. 
Clausilia bidentata Strom. Common in suitable places. 
Stenogyrid^. 
Cochlicopa lubrica Mull. Only two speciments obtained, but 
this species should be .more abundant. 
Ccecilioides acicula Mull. A few specimens found in the hum- 
mocks of grass on rock shelves and crevices. 
CYCLOSTOMATIM. 
Cyclostoma elegans Mull. Moderately common at the base 
of the cliffs, in crevices and under stones on the S. and S.W. side, 
LAND CRUSTACEA. ISOPODS. 
LjGUM. 
Ligia Oceanica L. Not common on rocks at low water. 
Oniscim. 
Oniscus ascellus h. Abundant everywhere under stones and 
old timber. 
Porcellio scaba Latr. Under stones in cottage enclosure. 
Armadilijdii^. 
Armadillidium vulgar c Latr. Common under stones at base of 
cliffs near ruins of Hotel. 
ARACHNIDIA (SPIDERS). 
IyYCOSID^E. 
Lycosa lugubris Walck. Several found amongst stones and 
tufts of Sedum acre. 
DYSDERID/E. 
Dysdcra crythrina Walck. Moderately common under stones.. 
MYRIAPODA. 
Julim. 
Julus niger. Comparatively rare, only two small specimens 
were taken in old storehouse close to the landing stage. 
