62 
Proceedings of the Royal Society of Edinburgh. [Sess. 
reappear on the anterior row of pair 8, the number increasing backwards 
(from 1 to as many as 10). 
Seven specimens from: “Jebel Hamrin, near Ruz, N.E. of Baghdad, 
— xi. 19]8.” 
The differences from the Bukhara original type lie in the metatarsal 
pegs, the number and, at least, the size of which are considerably reduced, 
as well as in the coupled spines of the prefemora, which seem to be wanting- 
on pair 4 to pair 14 of the type. 
Diplopoda. 
GalyptopJtyllum, n. gen. 
Gonapods deeply split. Mesomerite much larger than the solenornerite, 
and fused with its tracheal stalk. Solenornerite with a distinct coxal base, 
strongly arched forwards, and bearing a slender process near its summit. 
The presence of a seminal groove is still uncertain. Botli the solenornerite 
and the mesomerite are adorned with veil-like lamellse. 
Peltogonapods proportionally small, without distinct sternal plate, but 
with a very short ffagellum and with short, simple tracheal stalks. 
(Body robust ; prozonites without circular striae ; metazonites sulcate ; 
pores opening in the suture ; last segment angularly produced. Mandibular 
stipe of male with process. Legs padded in male, and with a supplementary 
coxal ring in both sexes.) 
Type : Calyptophyllum ohvolvativm, n. sp. 
The species hereafter described undeniably bear a close resemblance to 
the FcEctophyllidoe. In Pcectophyllum EschericJd, Verh., we find the 
mesomerite to be veiy large, while the solenornerite is borne on a coxal 
base; it appears to be very much the same in Gatamicrophyllum 
{hamuligerum, for instance), the solenornerite of which is said, moreover, 
to possess a delicate hyaline anterior lamella. It may be added that three 
out of the four members of the Poictopliyllidce family originate from 
Western Asia (Anatolian steppe, Jaffa, and Caifa). 
But the main character on which the family has been erected lies in 
the structure of the mesomerite which is not fused with the corresponding 
tracheal stalk, with which it articulates freely. Therefore, should this 
character be relied upon, as is done by Verhoeff*, Galyptophyllum would 
have to be split off from the bulk of its nearest relatives, and would have 
to be placed amongst the Mastigoniulince of the Itd/idoe family, with which 
it has no particular affinities. 
This shows that the value of the relation of the mesomerite to the 
