CHILOPODA. 403 
CLAss CHILOPODA (CENTIPEDES). 
1. Scutigera rugosa, NEWPORT. 
Ann. Mag. Nat. Hist. xiii. p. 95 (1844). 
Locality ‘“ near some pools of water a little to the west of Shebeli 
iver. 
This species, recognizable by the conspicuous black and yellow 
banding of terga and legs, is widely distributed in Eastern Tropical 
Africa. 
2. Pseudocryptops walkert, POC. 
Ann. Mag. Nat. Hist. pp. 225-227, Pl. V. figs. 3-3 c (1891). 
Locality, Turfa in Somaliland, dry country, 13.8.94; Shebeli 
River, 24.8.94; a little to the west of Shebeli River, 15.12.94. 
This rare and interesting species has hitherto been known from 
a single specimen obtained on Perim Island in the Red Sea. 
3. Cormocephalus mirabilis, PORAT. 
Bihang Sv.-Vet. Akad. Handl. iv. No. 7, pp. 18-19 (1876). 
Locality, Boholgarshan in Somaliland. Recorded originally 
from the White Nile, and subsequently from the Goolis Moun- 
tains inland of Berbera. 
4. Rhysida paucidens, sp. n. 
Color olive green, with a deeper band along the posterior 
border of the terga; legs yellowish, the last pair a bright green ; 
antennz with the three basal segments green, the rest ochre yellow. 
Head smooth, antennz of medium length, composed of eighteen 
or twenty segments, whereof the basal three are naked and the 
rest pubescent. Maxillipedes sparsely punctured ; precoxal plates 
contiguous,-each armed with four teeth; femoral process strong. 
Terga mostly smooth, only obsoletely wrinkled mesially and 
laterally from the 5th bisulcate, from the roth with raised margins. 
Sterna smooth, at most marked in front with two abbreviated 
sulci and a shallow posterior median impression. Anal tergite 
with a shallow posterior median impression, pleuree with process 
moderately elongate and tipped with two spines; sternite poste- 
