224 A. E. Verrill on a new species of Entozoa. 
their sees Those which I owe to the kindness of Dr. 
White had been mounted in glycerine, as microscopic objects, 
and aie out flat, before hey, came into my possession, and 
the tissues were thus injured and the organs deranged. Those 
om Dr. Cressy were both pressed flat an nd dried. Yet by care- 
ful maceration, and considerable labor, I believe that most of 
the important characters have been made out. The body is 
rather robust, especially in the female, and tapers to both ends; 
the ee s yellowish white, and the integument is seen to be 
finely ted transversely, when acess es The 
hed: is aie than the body, truncated a 
end; the mouth is terminal, roundish, or some- a. ¢ 
what a surrounded by the thickened rim 
of the chitinous capsule, or pharynx. The edge y 
of this chitinous ring rises at intervals into four 
to six denticles, or very small angles, which 
correspond to thickened, longitudinal, chitinous 
bands, that strengthen the pharynx, and givea 
slightly angular form to the mouth. The phar- b 
ynx 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, Bhar and very muscular. : ] 
The 1:12 of an inch long, and a L 
‘05 of an ee in diameter; the tail ends in a Past blunt lobe, 
united with two small, entire, m membranous expansions, one on 
each side, forming a a small bursa, which is strengthened by sev- 
eral short rays, the exact number of which could not be deter- 
mined in my specimens; there are two long, slender spicules. 
The females are 1-25 to two inches in length, and, as flattened 
between glass, they are “10 to 13 of an inch in preadth. The 
posterior end suddenly and obliquely narrows to a small coni- 
eal 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 a of 
the cavity of the body toward the posterior end. The u 
ane are both filled, in the larger specimens, sith. Am 
ense numbers of small oval eges. 
Tt is peobabls that this parasite is by no means uncommon. 
Figure 1 oes pinguicola Verrill; a, male, natural size; b, posterier end, 
enlarged, showing the bursa and spicules; ¢, ‘female, as size; d, anterior end 
g 
edhe iii, endatgei: chewing the chitinous capsule and 
