284 Mr. R. I. Pocock on some 
yellow, with a fulvous tinge. The areolet narrowed at the 
top; the cubital nervures almost united; the recurrent 
nervure is received in the middle; the transverse median 
nervure is received betore the transverse basal.  Petiole 
stout, shining, its base and the sides of the dilated part with 
scattered punctures; the dilated part with an elongated 
fovea at the base; the space behind the fovea and the space 
surrounding the spiracles finely striated; the second, third, 
and fourth segments closely punetured, the second strongly 
longitudinally striated between the gastrocceli, which are 
large, deep, smooth, and with an oblique slope at the base and 
apex. ‘lhe yellow line on the petiole is narrowed in the 
centre, on the second only very slightly, on the third and 
fourth acutely narrowed; on the apical two not perceptibly 
narrowed; the second and third segments broadly in the 
middle, the fourth and fifth broadly at the apex, and the apical 
segments are entirely yellow. 
[To be continued. | 
XXX VIT.—Descriptions of some new African Arachnida. 
By R. I. Pocock. 
Order SCORPIONES. 
Parabuthus cristatus, sp. n. 
Parabuthus brevimanus, Pocock, P. Z. 8. 1890, p. 125 (nee Buthus 
brevimanus, Thorell). 
9 .—Allied to P. brevimanus, Thorell, in the complete 
absence of distinct crests on the sides and under surface of 
the fourth caudal segment. Caudal segments 1-3 with eight 
keels, the median lateral weak on segments 2-3 and only 
granular posteriorly ; four inferior keels on segment 1 entirely 
smooth, on 2 and 3 marked with very coarse tubercular 
granules, which increase in strength posteriorly, the lateral 
keels converging posteriorly ; on the 3rd segment the ter- 
minal tubercles of the four keels form a broad, quadrilobate, 
U-shaped crest; the anterior edge of the lower side of the 
4th segment also raised into a distinct lobate crest. Upper- 
side of segments 1-2 abruptly elevated anteriorly, the anterior 
third rising nearly vertically, the posterior two thirds hori- 
zontal, excavated and shagreened. 
Ohele asin P. brevimanus apparently, except that there are 
