24 CHILOPODA. 
internally armed with 6 or 7 spinules, 2 or 1, 3,2, and below externally with about 8 spinules irregularly 
arranged ; tarsi not spurred. 
Tarsi of all the legs spurred. 
Length 96 millim. 
Hab. Mexico, Mezquital del Oro, Zacatecas (Buller coll.). 
A single specimen. 
The following species are unknown to me :— 
Scolopendra occidentalis. 
Scolopendra occidentalis, Meinert, Proc. Am. Phil. Soc. xxiii. p. 197 (1886) *, 
Hab. Wust Coast of Mzxtico (Capt. Goff 1). 
I cannot grasp the essential characters of this species from the diagnosis ; but, so far 
as can be judged, it would fall under the heading 6'° of the synoptical table given 
on pp. 18, 14, alongside of S. viridis, and it may prove to differ from S. viridis in having 
the anal legs long and slender, and the femora armed with 23 or 26 spines. 
Scolopendra nicaraguensis. 
Scolopendra nicaraguensis, Bollman, Bull. U.S. Nat. Mus. no. 46, p. 198 (1893) *. 
Hab. Nicaraeua (Bransford '). 
This species is based upon a specimen 90 millim. in length, which, according to 
Bollman, is related to S. heros, Girard, but has the anal legs thicker and shorter, the 
anterior 15 dorsal plates immarginate, and the anal plate shorter and wider. It is 
also said to be distinguishable from S. pachypus, Kohlr., by having the anal legs less 
crassate. 
If worth a separate title, this form will probably prove to be at most only a sub- 
species of S. azteca, the Mexican form of S. viridis. 
[CORMOCEPHALWS. 
Cormocephalus, Newport, Trans. Linn. Soc. xix. p. 419 (1845). 
Cormocephalus aurantiipes. 
Cormocephalus aurantiipes, Newp. loc. cit. p. 420. 
This species, which is typically Australian, no member of the genus to which it 
belongs having been previously obtained from any part of either North or South 
America, has been recorded by Meinert [Proc. Am. Phil. Soc. xxiii. p. 206 (1886)] 
from Guatemala. Probably, however, this locality is erroneous; but if correct we 
may safely assume either that the specimen was accidentally introduced or has been 
wrongly determined. | | 
