69 
1921-22.] Myriapods from Mesopotamia and N.W. Persia. 
lobes slightly bent backwards, each of them bearing a dozen setae. 
Posterior-median plate deeply split ; the notch is bordered posteriorly 
by a chitinous horse-shoe-shaped thickening ; anteriorly its margins are 
expanded into lobes (L), the inner of which is much longer than the 
outer. These lobes are folded in so as to meet in the middle, thus 
Fig. IZ. — Calyptophyllum integrum, n. sp. Left vulva, anterior view. (Dotted parts 
belong to the operculum and to organs of the mound seen through its surface. 
The more dense the dots the thicker and the darker the chitinous layers.) 
Fig, 14 , — Calyptophyllum integrum, n. sp. Mound of the left vulva, from behind. 
L, Lobes of the posterior median plate; ridge; a., apodema ; d., diverticulum. 
(The horse-shoe-shaped thickening is densely dotted.) 
leaving between them a linear slit, which abruptly widens backwards 
(ridge = r.). On both sides the setm are numerous, thick, and long. The 
apodema (a.) is scarcely as long as the notch, wide at its posterior end, 
from which rises a single, short, but enormously swollen diverticulum {d.) 
of somewhat irregular shape. 
Male unknown. A single female from : “ Harunabad, N.W. Persia, 
under stone, 22 i. 1919.” 
This specimen could have been identified as the female of C. ohvolvaturn 
had it not been for the structure of the anal scale. It is difficult to decide 
