61 
1921-22.] Myriapods from Mesopotamia and N.W. Persia. 
bearing three faint sulci converging anteriorly and crossed before the 
middle by a sliort arched sulcus ; and six very shallow dimples, one inside 
the inner angle of each eye, and two pairs (one behind the other) on the 
posterior half of the shield. First antennal shaft, 55 to 56 jointed ; second 
shaft, 142 to 180 jointed; third shaft, 155 to at least 228 jointed. 
Tergites, with coupled spines,* scattered on the surface and along the 
edges. Spiracles short, not reaching one-tenth of the breadth of the 
corresponding dorsal sclerite (fifth segment). 
Prefemoral spurs of legs 1 to 14: 2 dorsal, 1 ventral. 
Femoral ,, 1 to 14: 3 ,, 0 „ 
Tibial 1 to 14:1 „ 2 „ 
Legs jointed as under : — 
1st pair 
2nd „ 
3rd 
4th ,, 
5 th ,, 
6th ,, 
7 th „ 
8 th ,, 
9 th ,, 
12th ,. 
13th „ 
15th „ 
tarsus, 14 jointed; 
metatarsus, 30 jointed. 
„ 13 „ 
29 „ 
. 10 „ 
,, (broken off after 20th joint). 
0 ,, 
,, (entirely missing). 
n 0 ,, 
,, (broken off after 5th joint). 
(broken off after the 6th joint). 
,, 7 jointed ; 
metatarsus, 25 jointed. 
„ 26 „ 
8 „ 
„ 26 „ 
9 „ 
„ 26 „ 
35 9 ,, 
„ 28 „ 
no distinction between tarsus and metatarsus, which is broken 
off after the 316th joint. 
Tarsal spines beginning on the fifth pair of legs, where only one spine 
is found on the two basal joints. Spines of basal joint increasing back- 
wards from 4 on pair 6 to 24 on pair 13 ; 7 on pair 15. 
Metatarsal pegs (whenever present) very small on all legs, except 
pair 1 and pair 2, and, to a certain extent, on pair 3. Large pegs were 
observed on : — 
Pair 1, on metatarsal joints 12, 14, 16, 18, 20, 23, 24, 25. 
„ 2, „ „ 9 to 16, 18, 20, 22, 24. 
,, 3, ,, 5 , 17 and 19. 
Coupled spines to be found on the anterior row of prefemur of the four 
anterior pairs of legs, i.e. 16 (-f 3 apical) on pair 1 ; 11 (-f 2 apical) on 
pair 2 ; 6 ( -f 2 apical) on pair 3 ; 4 (-f- 3 apical) on pair 4. Coupled spines 
* By “ coupled spines ” are meant those spines which are found associated with setse 
generally twice (or more) their own length. 
