80 Mr. R. I. Pocock on some 
hairs, of which the proximal, however, is as large as those of 
the lateral series. 
Protarsus shorter than tibia, distally narrowed, armed 
normally below with five or six pairs of short fractured spines, 
the area between the spines thickly studded with hairs ; 
tarsus long, much narrowed at the base. 
Legs long ; second tibia armed distally and posteriorly with 
1 stout spine and below at its distal end with 2 setiform 
spines ; protarsus armed behind with a row of 5 stout longish 
spines and below with 3, a pair at the distal end and one 
posterior unpaired spine further up the segment; proximal tarsal 
armed with 4 spines, one submedian at its proximal end and 
three at its distal end, ¢. e. two constituting a pair and one 
posterior behind them; distal tarsal armed with 3 spines, two 
in front and one behind. 
Third leg armed like the second, except that two of the five 
spines on the posterior side of the protarsus are lower, the 
series being thus broken up into two. 
Fourth leg: protarsus armed with the normal 5 spines ; 
proximal tarsal with 6 spines in three pairs, the median tarsal 
with 4 spines in two pairs, and the distal tarsal with 2 spines 
in one pair; the lower surface of this segment clothed with 
normal sete. The malleoli long, the head with nearly 
straight distal edge, the handle fixed nearer its middle than in 
G. arabs. 
Stigmatic combs composed on each side of about twenty or 
a few more spines, separated like the teeth of a rake; inter- 
nally the series is simple, externally above the main series 
there are some irregularly arranged smaller spines. The 
median aperture of the third pair of trachez distinct. 
No modified hairs on the posterior border of the fifth 
segment. 
Measurements in millimetres.—Length of trunk 32, of the 
inferior coxal area 17°5; width of cephalic plate 8°5, length 
6:2; width of tubercle 2°5; length of mandible 11:5; length 
of palp (exclusive of coxa) 59, femur 22, tibia 20 (width 1-5), 
protarsus 14 (width 1), tarsus 3°5 (distal width 1) ; length of 
first leg 38, of second (including claw) 35:5, of third 48, of 
fourth 61; length of distal hammer-shaped organ 6°, of 
handle 4, width of head 5:5. 
Loc. Fao, on the Persian Gulf (W. D. Cuming). A single 
male example, probably not quite mature. 
This species differs from G'. arabs in the colouring of its 
head, mandibles, palpi, and ? abdomen; in its more vertical 
and less convex head and larger tubercle; in having the 
proximal tarsal of the second and third legs armed with four 
