Trichostrongyle Genus from an Armadillo. 419 
anus. The vagina is short and straight, measuring only 
about 45 w in length. It leads direct into the well-develoded 
ovijectors. The ovijectors are straight and divergent, and 
the combined length of their muscular portions, including the 
sphincters, is about ‘45 mm. 
The left uterus joins the anterior ovijector; the right 
uterus passes down the body more or less parallel to that of 
the right side, and extends further backwards than the posterior 
ovijector; having reached its posterior limit, it recurves 
sharply forwards and joins the posterior ovijector. 
The coils of the ovaries extend into the anterior part of the 
body, the termination of the right ovary being situated 
slightly more than 1 mm. from the anterior end. 
The eggs are large, oval, and thiu-shelled, measuring 
108 » by 54 w; prior to being laid they already are in the 
morula-stage, and in females which were kept in normal 
saline overnight the eggs were observed to have embryonated 
in utero. 
From the anus the body tapers abruptly to form a short 
tail, about 75 pw long. 
Parona and Stossich, in their description of Gsophago- 
stomum tuberculatum, write ‘ Peculiari e curiosi sono 1 tuber- 
coli della pelle, che le danno il carattere veramente specifico.” 
In all the specimens from Euphrectus (Dasypus) villosus 
examined J was unable to find any indications of these 
tubercles either in living or preserved worms. I can thus 
only presume that the tubercles seen by them were artificial 
and due to poor fixation. Further, they state that the 
mouth is ‘ circondata da un esilissimo cercine.”” This I was 
unable to see. he vesicular swelling of the head passes 
very slightly anterior to the mouth-aperture, and it would 
appear that the ring or cap surrounding the mouth observed 
by them must be this slight projecting portion of the vesicular 
swelling, which, at its junction with the mouth-aperture, may 
have the appearance of a chitinous ring. 
They also mention the presence of three minute papille on 
the tip of the tail of the female, and, although I have 
repeatedly sought for these, I am unable to find any signs of 
them. 
The entire absence of a mouth-capsule with its leaf-crown, 
and the nature of the spicules and bursa, are sufficient to 
show that this parasite does not belong to the genus Gsopha- 
gostomum, Molin, 1861. The mouth- and head-characters, 
