138 BOARD OF AGRICULTURE. 
acters have been made out. The body is rather robust, es- 
pecially in the female, and tapers to both ends; the color is 
yellowish white, and the integument is seen to be finely 
striated transversely, when considerably magnified. The 
head is smaller than the body, truncated at Figure 83 a. 
the end; the mouth is terminal, roundish, or a c 
somewhat angular, surrounded by the thick- ; 
ened rim of the chitinous capsule, or pharynx. 
This chitinous ring rises at intervals into four 
to six denticles, or very small teeth, which 
correspond to thickened longitudinal, chitin- 
ous bands, that strengthen the pharynx, and u 
‘give a slightly angular form to the mouth. 
The pharynx itself is small, short, and rather — 
squarish, when seen in profile, and has three 
or four small, conical teeth at the bottom. 
The cesophagus is thick, club-shaped, and very muscular. 
The male is 1.12 of an inch long, and about .05 of 
an inch in diameter; the tail ends in a small blunt lobe, 
united with two small, entire, membranous expansions, 
one on each side, forming a small bursa, which is 
strengthened by several short rays, the exact number of 
which could not be determined in my specimens; there 
are two long, slender spicules. The females are 1.25 
to two inches in length, and, as flattened between giass, 
they are .10 to .13 of an inch in breadth. The posterior 
end suddenly and obliquely narrows to a small conical 
point, which is turned to one side. The anal opening is close 
to the end, and the genital orifice appears to be adjacent to 
it. The oviducts are long, voluminous, much convoluted, 
and unite in a large and capacious uterus, which fills most 
of the cavity of the body near the posterior end. The uterus 
and oviducts are both filled, in the larger specimens, with im- 
mense numbers of small oval eggs. 
It is probable that this parasite is by no means uncommon. 
Pentastoma tenioides Rudolphi. Figure 84. 
This parasite is not a true worm, but is now generally re- 
Figure 83 a.—Sclerostoma ‘Botany Mi a, male, natural size ; b, posterior end, en- 
larged ; c, female, natural size?’ TENERM, Micresett® Original. 
