ARACHNOMORPH 2. 543 
a’. Posterior spinning-mammille very long, flagelliform, 
tapering, attenuate. . . . . . . . . . Hersti1up# (p. 350). 
6°. Posterior spinning-mammille not abnormally long 
or flagelliform. 
* Tarsal claws 2. Ungual tufts present. 
a’. Anterior pair of spinning-mammille set wide 
apart attheir base. . . . . GwapnHosip (p. 54). 
6°. Anterior pair of spinning- -mammille set close 
together at their base. 
a’. Apex of protarsi without a hard chitinous rim, 
but furnished with a trilobate membrane . HeEreRopopip# (p. 118). 
6°. Apex of protarsi with a hard chitinous rim, . 
not furnished with a trilobate membrane. 
a’. Eyes situated in an almost straight trans- 
verse row . . . . . . . . . « « SELENOPIDH (p. 115). 
6’. Eyes situated in two or three transverse 
rows. 
a*. Legs iii. and iv. very much shorter than 
i, and ii. Mandibles weak, sometimes 
with very smallteeth . . . . . TxHomisip# (p. 127). 
6°, Legs iii. and iv. not much shorter than 
i, and ii. Mandibles strong, with stout 
teeth. 
a’, Central anterior eyes very large. Eyes 
of posterior row widely separate, 
forming a large quadrangle . . . Saxricrp# (p. 166). 
6°, Central anterior eyes not or scarcely 
enlarged. yes of posterior row not 
widely separate, forming a trans- 
verse row. 
a’. Eyes situated in two transverse 
rows. 
a’, Tracheal stigmata more or less 
remote from the spinning- 
mammille . . . . . . . ANYPHENIDE (p. 92). 
6". Tracheal stigmata set imme- 
diately in front of the spinning- 
mammille . . . . . . . CxuBronrp# (p. 61). 
6’. Eyes situated in three, or four, 
transverse rows. . . . . . . Crenipz (p. 107), 
** Tarsal claws 3. 
a’, Tibia of male palpus with an apical external 
spur. 
a’’, Protarsi i. and ii. without a central apical 
spine beneath . 2 . 1 . . ww). .) «Snocunips (p. 349). 
