19t6.] KE. H. Graveity: Indo-Australian Thelyphonidae. 63 
Third caudal segment without vitreous spots ; 
tibial apophysis of male slender, but otherwise 
not very different from that of female .., Thelyphonellus (American). 
Third caudal segment with the usual vitreous spot 
on either side; tibial apophysis of male more 
strongly modified as 
>) 
tibial apophysis of male strongly modified ... Labochtrus, p. 64. 
Tibial spurs present on (and confined to) the 
third and fourth pairs of legs; tibial tee 
of male often still more strongly modified ... Hypoctonus, p. 67. 
Tibial apophysis strongly modified in male ; adi 
fication of tarsus of antenniform legs of female, 
when present, affecting one or both of the eighth 
and ninth (terminal) joints Typopeltis, p. 70. 
Tibial senhiee of male not strongly modified ; 
modification of tarsus of antenniform legs of fe- 
male, when present, affecting the seventh joint 
with or without one or more joints on one or 
both sides of it 
,Genital sternum of male without aagaa groove, 
posterior margin of following sternum without 
median mulsenale 6. 
| Genital sternum of male w ith strong median groove, 
| Tibial spurs confined to the fourth pair of legs; 
| 
On 

1 
posterior margin of ie scene with me- 
dian tubercle ae 8. 
Hand flat, twice as Breda as the meee slender 
femur ; unjointed pete strongly curved at apex Mimoscorpius, p.71. 
Hand normal ... - We 

Tibial apophysis of male lice that of e eamele no 
tooth on inner side of gnathobase of arm Mastigoproctus (American). 
jot apophysis of male much slenderer than that 
= 
of female; a tooth on inner side of gnathobase 
of arm in both SEXeSn | en &: se Cvoproctus, p: 71 
| “Third caudal segment with the usual Sree vitreous 
spot on each side .. Thelyphonus, p. 73. 
| Third caudal segment without or aes two such 7 
spots on each side a3 oe a Q. 
we) 
Third caudal segment with two vitreous spots on 
of Third caudal segment without vitreous spots ... Abalius, p. 78. 
each side, one above the other es ome Letrabolius> py 78: 
Before considering the connection between the phylogeny of 
different forms of Indo-Australian Thelyphonidae with their dis- 
tribution, it is necessary to summarize the zoogeographical informa- 
tion with regard to the family at present available. 
In addition to the species mentioned in the summary of this 
information given below, ‘‘ Thelyphonus”’ spinimanus, Lacas, 
angustus, Lucas and lucanoides, Butler, from unknown localities, 
appear to belong to Indo-Australian genera. The identity of the 
first two appears to have been lost beyoad recall.! The third is 
stated by Butler (1872, p. 205) to be closely related to ‘* Thelypho- 
nus” seticauda, Doleschall. The latter species has now, however, 
been made the type of a distinct genus (Tetrabalius), to which, 

1 Lucas states that the types were in the Natural History Museum in Paris ; 
but there is no mention of them in Kraepelin’s catalogue of the Pedipalpi of that 
collection (1901). 
