1916.] F.H. Gravety: Indo-Australian Thelyphonidae. 81 
fied or almost unmodified male tibial apophyses remain for consi- 
deration. Of these the genus Uvoproctus, whose unmodified geni- 
tal sternum indicates its primitive character, contains only one 
species, a species the females of which have the tarsi of their an- 
tenniform legs long and unmodified. In two at least of the other 
three genera the females of some species have the tarsi of their anten- 
niform legs long and unmodified, while those of most have them 
short and modified, two species of Thelyphonus being transitional in 
so far as these tarsi are long although modified. The phylogenetic 
value of the distinctions between these genera is very doubtful, 
and they may be treated here as together forming a single unit. 
The species found in the Malay Peninsula and Archipelago 
and the Polynesian Islands are as follows :— 
Thelyphonus manilanus, Thelyphonus tnsulanus, 
x anthracinus, . hanseni, 
a caudatus, a asperatus , 
. linganus., ne leucurus , 
‘ borneensis, Ke sumatranus , 
ei klugt, Abalius rohder, 
Ae celebensis, .,  samoanus, 
in dortae, ,,  willeyr, 
3 sucht, » manilanus, 
Bs sempert, Tetrabalius seticauda, 
ke pocockt , ‘3 nasutus. 
burchardt, 
In two of these—Thelvphonus sumatranus from Sumatra and 
Abalius nasutus from Borneo—the structure of the antenniform 
legs of the female is not definitely known.' But the tarsi of 
these legs are short in the male of the former species, and as 
shortening appears to follow modification it may be assumed that 
they are modified in the female. In the only known specimen of 
the latter species they are damaged. 
In all the others, except Thelyphonus anthracinus from Borneo, 
Thelyphonus mamilanus from the Philippines and Moluccas, and 
Abalius rohdei from New Guinea, they are both modified and short. 
In the first of these three exceptional species they are modified 
but long; in the other two they are both long and unmodified. 
In Continental Asia (excluding the Malay Peninsula and in- 
cluding Ceylon) on the other hand, only two out of five species be- 
longing to the keeled group have the antenniform tarsi modified, 
and in one of these they are long. Both species are, moreover, 
confined to Siam and Indo-China, 7.e. they are the nearest of all 
to the Archipelago. 
The country west of Siam and more directly north of the 
Malay Peninsula is occupied by the keelless genera Hypoctonus 
1 1 have not seen a description of 7. insulanus. If it 1s allied to 7. schtm- 
kewitchi as Kraepelin suggests it must have the antenniform legs of the female 
medified. 
