394- SYSTEM OF JNSECTS. 
by Gonyleptes; or, according to Mr. MacLeay, the 
transit is to both by Galeodes*. But as there is reason 
for thinking that this last belongs to the Pulmonary 
Arachnida h , and forms a peculiar type in that Class, I 
consider the transit from the one to the other as above 
stated. The folded abdomen of Gonyleptes seems much 
to correspond with that of the cancriform spiders (Car- 
kinodes cancriformis, &c). 
Def. Metamorphosis complete. 
Body consisting of one or two principal seg- 
ments. 
Mouth various . 
Antenna obsolete, or represented by mandibles. 
Legs mostly eight, but in a few six only d . 
Polypods. This suborder consists of Dr. Leach's 
Class Myriapoda, or the Chilognatha and Chilopoda of 
Latreille, corresponding with the Linnean genera Iidus 
and Scolopendra. Mr. MacLeay has arranged them in 
the same Class with the Hexapods, and connects them 
with the Anoplura by means of certain intestinal worms 
of an indistinct annulose structure c {Entozoa Nematoidea 
Rud.), in which the sexes are dioecious, and some of 
which are furnished with lateral spinula?, — thus, as he 
supposes, connected with the Polypods ; and with the 
Anoplura by others [Epizoaria Lam.) in which appen- 
dages appear somewhat analogous to the legs of Hexa- 
pods, as in Cecrops Leach, and which like them are 
parasitic animals f . But the right of these worms to be 
a Hor. Entomolog. 381. b Vol. III. p. 22. note \ 
* Ibid. p. 471—. d Ibid. p. 653. 
c See above, p. 236. f Hor. Entomolog. 286. 
