NEW PEDIPALPI FROM AUSTRALIA AND SOLOMON ISLANDS 1] 
towards a reduction in the number of spines on the femorae and 
tibiae of the palpi; however, I cannot find any difference im- 
portant enough to warrant their separation from the Australian 
example. A much paler immature Specimen with the paratypes 
measures about 2-7 mm. in length, and has the normal segmenta- 
tion of leg iv, but the palpal spination of the older specimens is 
not fully developed; unfortunately both tactile legs are missing, 
being broken off at the patellar-tibial joint. 
The only other Australian whip-scorpion known at present is 
Charon annulipes Lauterer, but is insufficiently described for 
determination of its true generic position. If the description is 
at all reliable, however, it is quite distinct from the present 
species, differing principally in having two large median eyes and 
two (?) small eyes on each side, in femur i being double the length 
of those of the ambulatory legs, in tibia i being divided into 26 
and tarsus i into 47, or 49,' segments, in the proportionally shorter 
tactile leg, and in having dark brown rings on the ambulatory 
legs. 
Genus STYGOPHRYNUS Kraepelin, 1895 
A key to the species of this genus has already been given by 
Gravely (1915, p. 448), and it is apparent that the species fall 
into two distinct sections. The majority form a natural group 
around the genotype S. cavernicola (Thorell) ; to those mentioned 
by Gravely must be added S. dammermam Roewer (1928, p. 16), 
a species since described from Javanese caves. 
S. moultoni Gravely is, however, quite distinct from its con- 
geners. That this was recognized by Gravely is obvious from 
his remark (1915, p. 436) that for this species “а new genus 
ought perhaps to be established.” Though in some respects the 
species described hereunder falls between S. moultom and the 
more typical cavernicolous members of the genus, this second 
section seems sufficiently differentiated to warrant subgeneric 
rank at least, and consequently the subgenus Neocharon nov. is 
proposed for the reception of both species. 
Subgenus NEOCHARON nov. 
Differs from Stygophrynus Krpln. (sensu stricto) in being 
non-cavernicolous species, and having the distal supplementary 
spines of the hands, particularly the ventral ones, reduced in 
number below what is normal for the genus (at least three both 
dorsally and ventrally, sec. Kraepelin). 
Type: Stygophrynus (Neocharon) forsteri sp. nov. 
1 In his description, Lauterer (1895, p. 414) states that the tarsus has 47 segments, 
but a few paragraphs previously refers to 49 segments. 
