510 Mr. R. I. Pococlc on the Morphology 



considerably overlapping the proximal 



extremities of the two posterior pairs of 



coxae ; eighth or penultimate tergite 



small and narrow, not expanded late- 

 rally ; the ninth or anal subequal in size 



to the anal sternite and lateral valves; 



labrum flat ; legs shorter and stouter, 



with protarsi distally broader than the 



tarsi, which are pauciarticulated ; cara- 

 pace with frontal processes concealing 



the appendages of the first two pairs ; 



sternum as in Dicranola^ma, but with 



the posterior expanded portion shorter 



and wider Fam. Tkogulid.e. 



h. Anterior sternal plate (labium) large, sub- 

 quadrate, as long as or longer than the 

 posterior sternal plate and underlying the 

 sterno-coxal or maxillary processes of the 

 appendages of the third pair (first pair of 

 legs) ; posterior sternal plate with its long 

 axis transverse, at least twice as wide as 

 long, its posterior border straight, not 

 emarginate ; proximal end of the coxae of 

 the sixth appendages sending forwards a 

 process on the proximal or inner side of 

 those of the preceding appendages; coxa? 

 of fourth pair (second leg) with distinct 

 and movable sterno-coxal (maxillary) pro- 

 cess. Dentition of digits of chelicerae 

 uneven, lobate. Penis of male with mov- 

 able terminal style Apagosterni. 



«'. Terminal segment of palpus shorter 



than the penultimate and clawless ; 



postero-inferior edge of the coxpe of the 



appendages of the last pair not fused 



with the adjacent sternal plate of the 



opisthosoma ; maxillary process of 



second leg directed vertically down- 

 wards ; no tibial spiracles Fam. Ischyropsalid^. 



b"*. Terminal segment of palpus much longer 



than the penultimate and armed with a 



small claw ; coxa of sixth appendage 



united near its base on the posterior 



side to the tracheal sternite of the 



opisthosoma ; maxillary process of 



second leg directed horizontally in- 

 wards ; tibial spiracles present Fam. Phalaxgiid.^. 



a^. Carapace not fused with the anterior 

 five tergites of the opisthosoma; 



apertures of Krohn's glands exposed . Subfam. FhalangiirKe. 

 bK Carapace and anterior five tergites of 

 opisthosoma fused into a single dorsal 

 shield; apertures of Krohn's glands 

 coucealed Subfam. Sclerosomince, 



