XVII CLASSIFICATION A451 
Plaiybunus has two, and Megabunus one British representa- 
tive. They are of small size, and are to be sought for among 
heather or dead leaves 
in spring or early \ 
summer. 1 
Fam. 2. Ischyro- 
psalidae. — Coriaceous 
Phalangids, with eye- 
turret far removed from \ 
anterior border of ‘ 
cephalothorax. Mazx- : 
lary lobes of second 
par. of’ legs. rudi- 
mentary, in the form 
of tubercles. Legs 
simular, without “ tro- 
chantin.” Multiarticu- 
late tarsi. Tarsus of f 
pedipalp without claw, 
and shorter than meta- i 
tarsus.  Pedipalps long 
and horizontal. 
This family includes 
a small number of 
large or moderate-sized 
Phalangids, which are 
found occasionally in 
thick moss, or in caves, 
in mountainous regions of the south of Europe, and belong 
to the genera Ischyropsalis and Sabacon. There is a North 
American genus, Taracus. 
Fam. 3. Nemastomatidae.—Coriaceous Phalangids, with 
cephalothorax fused with the first five segments of the abdomen, 
forming a scutum. Eye-turret near anterior border. No maxillary 
lobe on second coxae. Similar legs, without “trochantin””  Multi- 
articulate tarsi. Tarsus of pedipalp without claw, and shorter 
than metatarsus. 
There is but one genus, Vemastoma, in this family, and the 
members of it are, as a rule, rather small and dark Phalangids, 
which live under stones or in moss or débris, and are found in 
Fra. 236.—Oligolophus spinosus. (After 
Pickard-Cambridge. ) 
