38 Mr. R. I. Pocock on 
and confluent; a narrow margin at the suture is smooth, the 
epipleural stria is fine and passes round the apex, and termi- 
nates after passing the angle at the suture; the propygidium 
is punctulate like the thorax; the pygidium impunctate in 
the female and microscopically strigose, in the male it is 
narrowly smooth at the base, with a coarse vermicular sculp- 
ture at the apex ; the prosternum bistriate, striz indistinctly 
joined at the base, where the margin is a little broad; the 
mesosternum short and transverse, marginal stria nearly com- 
plete, being a little broken in the middle only, transverse 
stria widely sinuous, suture invisible; the metasternum, 
lateral stria oblique, punctuation sparse; the anterior femora 
conspicuously grooved like those figured for Phelister Simoni, 
Lew. (Ann. & Mag. Nat. Hist. 1889, vol. iv. p. 46); the 
anterior tibize 5-6-dentate, posterior without spines. ‘The 
minute strigosity is more apparent on the sternal plates than 
on the upper surface. 
The facies of this species is like a very large Abrus, and 
it is the only species noticed in this paper with an anterior 
marginal stria to the mesosternum. 
Hab. Japan. I took several specimens at different places 
bordering the great plain of Fujisan in May 1880. It fre- 
quents old beeches. 
V.—Descriptions of two new Genera of Scorpions, with 
Notes upon some Species of Palamneus. By R. I. Pococr, 
of the Natural-History Museum. 
[Plate IIL. B.] 
-HAvinG been occupied of late in the identification of the 
oriental species of Scorpio and Palamneus, I soon made 
the discovery that there has been considerable confusion 
respecting the Indian and Burmese species of the latter 
genus. 
Their history may be briefly told as follows. 
The type of the genus, P. spinifer (Hempr. & Ehrb.), was 
originally described as from India. ‘This species, however, 
has not been identified since it was established, apparently 
because it was described and figured as having nineteen or 
twenty pectinal teeth—this number being considerably larger 
than any presented by the species described by Dr. Thorell. 
In 1877 Dr. Thorell characterized from Singapore a species 
named P, Petersiv; this form apparently only differs trom 
