142 
Mr. R. I. Pocock on 
obtained by Mr. Whymper, the species found on the moun- 
tains do not for the most part differ from those of the lowlands. 
Of the seven species brought back two only are new. Both 
of these, since they belong to the rare and little-known genus 
Newportia , are of special interest, inasmuch as they throw 
fresh light upon the specific characters of the genus. The 
genus Scolopocryptops , too, has proved very troublesome to 
systematists, and all who are interested in the Ghilopoda 
must feel grateful to Mr. Whymper for having preserved so 
large a number of individuals of Sc. mexicanus , for I have 
thereby been enabled to draw up with confidence the synonymy 
of this species as given below. 
CHILOPODA. 
Otostigma scabricauda (Humb. & Sauss.). 
Branckiostoma scabricauda , Humb. & Sauss. Rev. et Mag. Zool. 1870, 
p. 203 ; Etudes Myr. p. 121, pi. vi. fig. 15 (1872) ; Kohlrausch, 
Arch. Nat. 1881, p. 75 ( Branchiotrema ). 
Otostigma appendiculatum , Porath, Bih. Sv. Vet. Ak. Handl. iv. p. 23 
(1876). 
Mr. Whymper obtained specimens in the valley of Chillo, 
8500 feet, Machachi, 9800 feet, and on Corazon at an altitude 
of 12,000 feet. 
De Saussure and Porath have recorded this species from 
Rio Janeiro, and, in addition to specimens from this locality, 
Kohlrausch had others from Popayan, in Colombia. This 
author considered the remarkable appendage on the anal legs 
to be a monstrosity. It is in reality a sexual character 
belonging in all probability to the male. 
Scolopocryptops mexicanus , Humb. & Sauss. 
Scolopocryptops mexicanus , Humb. & Sauss. Rev. et Mag. Zool. 1869, 
p. 158 ; Etudes Myr. p. 135, pi. vi. fig. 18. 
Scolopocryptops Miersii , Meinert, Proc. Am. Phil. Soc. 1886, p. 181 
(not Miei'sii , Newport). 
Scolopocryptops Meinerti , Pocock, Ann. & Mag. Nat. Hist. 1888, ii. 
p. 474. 
P Scolopocryptops bisulca, Karsch, Abh. nat. Yer. Brem. ix. p. 66 (1884). 
From the localities that Dr. Meinert gives this species is 
common in the West Indies and Brazil. It appears also to 
be common in Mexico. In Ecuador it is very abundant, 
specimens being obtained at Chiquipoquio, on Chimborazo, 
and on the south side of the mountain at an altitude of 12,000 
to 13,000 feet, and on the east side at 11,700 feet; at 
Pichincha, 12,000 feet ; at Machachi, 9800 feet ; at the 
