THK Gt;NEKA AND SPECIES OF SYMPHYLA. 69 



the apex ; the distance between the processes as long as 

 their length. The an tero Literal seta? are rather short, not 

 half as long as the processes; one of the lateral seta3 a little 

 shorter than the antero-lateral pair. The third scutum 

 (fig. 1 a) with the hind margin as in the second; the pro- 

 cesses one half broader than their length, with the same 

 number of seta) at the margins; the antero-lateral setas 

 subsimilar to those on the preceding scutum ; the distance 

 between the processes is a little shorter than their breadth. 

 The other scuta present nothing of special interest. 



Legs. — The last pair (fig. 4 d) present characteristic 

 features. The tibia with two, the metatarsus with three 

 protruding dorsal seta), which at most are a little more than 

 half as long as the depth of their joints; the tarsus is 

 elongate, unusually slender, nearly six times longer than 

 deep, with five protruding setas in the anterior dorsal row, 

 and most of them about as long as the depth of the joint. 

 The anterior claw (fig. 4 e) moderately slender and rather 

 curved, the posterior slightly more slender, and only a little 

 shorter than the other ; the front seta rather short and thin. 

 The first pair (fig. 4/) scarcely one third as long as the 

 second pair, and considerably shorter than the tarsus of the 

 last pair; fenmr and tibia each a little deeper than long; 

 the tarsus nearly twice as long as deep, terminating in two 

 claws (fig. 4 g), the anterior of which is a little longer than 

 the other, and both are rather curved and distally slender ; 

 the front seta rather short and thin. 



Cerci (fig. 1 h). — Rather long, only a little shorter than 

 the last pair of legs, somewhat more than four times longer 

 than deep, clothed with a large number of seta) differing con- 

 siderably in length; the long seta) are rather numerous, and 

 spread on the outer surface both above and below ; they are 

 protruding, and not quite half as long as the depth of the 

 cerci, while the other seta) are rather depressed and con- 

 siderably shorter. The terminal area is short, half as long 

 as the depth of the cerci, and looks outwards (and slightly 

 downwards) ; on the opposite side the surface has seven to 



