227 
anatomy of the mole-cricket. 
towards their caudal extremity. In all of these worms the 
common intestines were distinctly visible through the inte- 
guments ; and in many of them Vv^ere distinctly visible also 
from ten to fifteen ova.* 
On opening and removing the contents of the upper por- 
tion of the great intestine, four rows of minute bodies of a 
glandular character, -f and of nearly a black colour, are brought 
into view ; [J; two of which rows originate from the very 
commencement of the great intestine, and pass downwards 
through more than half its course : exteriorly to these two 
rows are two others, one on each side, which are parallel to 
the preceding, but originate at some distance from the com- 
mencement of the intestine. Immediately below the termina- 
tion of this glandular apparatus is a small opening, very 
readily distinguishable on the inner surface of the intestine ; 
which is the orifice of a cylindrical tube of a white colour, 
and of about the size of a horse hair. This tube, after hav- 
ing been traced a short distance in a direction towards the 
gizzard, is lost in a mass or brush of still smaller tubes of an 
exceedingly bright yellow colour ; these tubes, which amount 
probably to 150 or 200, § are partially coiled round the con- 
tiguous viscera so as not to be very easily disentangled. A 
* Vide fig. 9. 
f The only doubt which I entertain as to the glandular character of these bodies, 
arises from a reliance on the authority of Cuvier, who says, that the glands of 
insects are in every instance nothing more than parcels of free tubes floating in the 
interior of the body, and held together by the tracheae.” Journ. de Phys. Tom. 49. 
p. 344. J Vide fig. 9 a. 
^ Cuvier states in the Journal de Physique,. Tom. xlix, p. 346, that the num- 
ber of these tubes in the gryllotalpa amounts to many hundred : but 1 feel certain 
that he greatly overrates the number. 
H h 
MDCCCXXV. 
