426 Miscellaneous. 
of the Cumberland Mountains, in the northern part of East 
c Sisi I found them under masses of chestnut-bark in es 
places, in small families of some size, with Polydesmus. They hav 
the motions of piv icti ; i. e. they progress slowly, and roll dine 
selves up when captured 
This form is near Wood's Octoglena, of which one species (O. 
bivirgata) was found in Northern Georgia. It apia generically in 
the great extent of the basilar segment, which is very short and 
leaves the head exposed in Octoglena, and in the “agglomeration of 
the ian which in the latter are arranged in two long series of 
four 
The d appear to be completely chitinized on the median line 
below 
Observations on other Myriopoda. 
Brachycybe Lecontei, Wood, seh in J at County, in the 
valley of East Tennesse ; it is not comm nd lives under 
bark of fallen logs. The M votos of its beg is much like that of 
Andrognathus externally ; ; and the genus is probably to be — 
to the Andrognathidze x idm than to the Siphonophoride. It 
from the former genus in marked characters, the sn T the 
than corda, lactarius, which it considerably resembles, and 
with which it is found under bark, &c. 
As is known, the Myriopoda of the orders Strongyli and Sugentia 
are sluggish in their motions, and not furnished with offensive 
weapons. They cce bier secretions of a um acrid cha- 
racter, which furnish a seeure defence against many en Lhe 
species of Spirobolus eh yam discharge a yellowish Tie. having 
much the smell of aqua regia, and a very acrid taste. Spiro- 
j lasiri exudes, from a series of lateral pores*, a fluid 
which has in its odour a close resemblance to creosote. Poly- 
desmu. 
the smell of hydrocyanie acid, and is fatal to small animals. Peta- 
serpes rosalbus secretes a considerable quantity of a milky sub- 
stance which has the perfume of gum camphor. 
Pseudotremia cavernarum, Cope, is found in some of the limestone- 
caves of the valley of Tennessee. I found it especially abundant 
* I must co creen o lateral pores" for Spirostrephon (Proc. 
Amer, Phil. Boc. 18 1869 P. DNI ty ^" oae eri à of pores. 
