231 
Cephalothorax considerably narrowed anteriorly, 
without median tooth on the anterior margin. 
(The 11th abdominal segment mostly plainly divided 
into tergite and sternite or at least with an indication 
of such a division). 
il. Emictenodactyli. 
The mandibles large; the distance between their 
exterior hind corner at least as long as 2/3; of the 
posterior margin of cephalothorax. 
Serrula on the movable finger free at the distal end, 
posteriorly narrower than outside the middle. The immov- 
able finger of the mandibles without lamina exterior; 
lamina interior profoundly divided into numerons free 
comb-teeths, altogether formed as an anteriorly free serrula. 
The lower side of the maxillze situated in a higher 
plane than the coxee, so that its hindmost portion, looked 
at from below, goes so under the coxe of the first pair 
ot legs. 
Cephalothorax sligthly or not at all narrower ante- 
riorly than posteriorly; the frontal margin with a median 
tooth. 
(11th abdominal segment forming a ring without any 
trace of a division into fergite and sternite). 
Panctenodactyli are divided into 2 families, boun- 
ded by several very sharp characters, namely 
12 Chevijert dc. 
The femora of the 2 anterior pairs of legs undivided 
or having but a basal trochantin. 
All tarsi 1-jointed. 
None or 2 eyes. 
2. Gary pid, 
Tbe femora of the 2 anterior pairs of legs divided 
into a longer pars basalis and a shorter pars tibialis. 
