55 
1921-22.] Myriapods from Mesopotamia and N.W. Persia. 
causing the last three segments to be injured on the right side. Yet it was 
possible to detect some coxal pores dorsally. 
A single male from : ‘‘ Jebel Hamrin, near Ruz, N.E. of Baghdad, under 
stone, — xi. 1918.’ 
Mecistocephalus Evansi, n. sp. 
$ : length 88 mm. ; breadth 1’20 mm.— 51 pairs of legs. 
Fig. 1 . — Mecistocephalus Evayisi, n. sp. Fig. 2 . — Mecistocephalus Evansi, n. sp. 
Anterior end of body, dorsal Maxillae, first and second pairs, 
view. ventral view. 
Body parallel-sided for four-fifths of its length, tapering gently back- 
wards from about the 40th segment. 
Head quadrangular (fig. 1), almost as broad behind as in front, at least 
twice as long as broad ; angles scarcely blunt. Surface with two paramedian 
sulci and a few deep punctures. Basal shield shorter than broad, parallel- 
sided, filling the space between the dorsal pleural ridges. The ridges 
are perfectly straight and parallel, in a line with the lateral margins of 
the head plate. Maxillipedes widely exposed dorsally, produced in front, 
the external summit of the femoral joint overreaching the anterior margin 
of the head plate ; their surface is overspread with large and small punctures 
intermingled. Coxosternum with almost straight anterior margin (at least 
in the middle); no coxal teeth. Following joints all provided with distinct 
