NATURAL HISTORY. 
this class have a distinct head aud two antenne,— 
the body composed of numerous segments, each 
furnished with two or four legs. 
ORDER 1. CHILOGNATHA. 
With seven-jointed antenne and short legs. 
GLOMERIS. Marernata. (Latr.) This has 
usually been confounded with the last genus of 
the former class. 
JULUS. Sasurosus. Beneath stones, &c, This 
is one of the most common of this obscure tribe, 
The British species are described in the 11th vol, 
of the Linnzean Transactions. 
CRASPEDOSOMA. PoLypesmorpeEs. Leach. 
Lin. Trans. 11. p. 380. Under stones. Common 
along the borders of Dartmoor and on the 
southern coast. 
POLLYXENUS. Lacurus. (Latr.) Common. 
under the bark of trees, 
ORDER 2. SYNGNATHA. 
With fourtecen-jointed antenne and elongated 
legs. 
LITHOBIUS. Forricatus. Linn. Trans. v.11. 
To which we refer for the other species of this 
genus, and for those of 2 or 3 ethers established 
by Dr, Leach, 
