290 CLASS VIII. 
Comp. J. F. Branpr, Tentaminum quorundam Monographicorum, Chi- 
lognatha spectantium Prodromus. Bullet. de la Soc. imp, des Naturalistes 
de Moscou, vi. 1833, pp. 194—209. Tab. v. 
Phalanx I. Sugentes (Stiphonizantia BRANDT). Mandibles and. 
maxille coalesced to form a tube. Body elongate, narrow. 
Polyzonium Branvt, Platyulus Gerv. Two series of three 
small eyes in the frons. 
Sp. Polyzonium germanicum, Platyulus Audouinianus Grrv., Kocu in Pan- 
zER’S Deutschl. Insecten, fortgesetzt von HERRICH SCHZFFER, Heft 190, 
No. 17. 
Siphonotus Branpt. Two distinct eyes in middle of frons. 
Siphonophora Branpt. yes none. 
Phalanx II. Manducantes (Gnathogena chilognatha BRANDT). 
A. Middle segments of the body formed of a single complete 
ring, to which the feet are inserted in the sides of the abdominal 
protuberance. onozonia BRranvrt. 
Pollyxenus LAtR.1 Body soft, with segments not numerous, 
with hairs or scales elongate, pinnatifid, fasciculate, set on a tuber- 
cle at the sides, with the last segment penicillate. Eyes aggregated 
in two clusters. 
Sp. Pollyxenus lagurus, Scolopendra lagura L.; DumértL, Consid. gener. 
Pl. 58, fig. 7 ; Guerin Jconogr. Ins. Pl. 1. fig. 5: this little animal lives 
under the bark of trees and in moss, and then attains a size of more than 
aline. In this species also Dr GEER has observed the increase in number 
of rings and feet (Mém. présentées a 0 Acad. des Sciences de Paris, 1. 532; 
Mém. pour U Hist. des Ins. vi. pp. 576—578. The full-grown insect has 12, 
or according to Kocu, 13 pairs of feet. 
Polydesmus LATR. (species of Julus L.) Body covered with a 
hard skin, with segments produced at the sides, depressed. 
Polydesmus Luacn. Eyes none. (Sub-genera Zropisoma, Scyto- 
notus, Platyrheus, Polydesmus, Rhacophorus, Euryurus, Oxyurus, 
Fontaria Kocu). 
1 Some zoologists write Polyxenus, but we leave the word, of which the derivation 
is unknown to us, as LATREILLE wrote it; he wished to express by it crafty (rusé), 
(Hist. nat. des Crust. et des Insect. vit. p. 62), although as little of particular craft is 
known to us in this little animal, as of a Greek word agreeing with this name, which 
denotes crafty. 
