376 
S. J. JOHNSTON. 
straight line, inclined at an angle to the antero-posterior axis 
of the body ; but the ovary not so closely associated with the 
posterior testis as in H y p t i a s in u s . Anterior testis separated 
from the posterior and the ovary by a number of uterine 
loops. Uterine loops, in the posterior half of the body, exten- 
ding out beyond the intestinal limbs; but no loops exten- 
ding backwards beyond the posterior testes as in Hypti- 
asmus. No Laurer^s canal; a receptaculum se minis 
present or absent. 
Type species : A. antigones; from the small intestine of 
the Australian crane, A n t i go n e a u s t r al a s i a n a . 
Type-specimen in the Museum of the Australian Institute 
of Tropical Medicine, No. T. 35. 
Co-type in the Australian Museum, No. W. 366. 
This genus differs from Hyptiasmus, to which it is closely 
related, mainly, in the undulating course of the intestiiial 
limbs, in the position of the genital pore, at, or just behind, 
the intestinal fork, and in the consequent situation of the ciri-us 
sac entirely behind it; in the absence of uterine loops passing 
behind the posterior testis, and in the presence (probably 
invariable) of a receptaculum seminis. AYitli this genus 
probably Hyptiasmus ominosus Koss. and H. adolphi 
Stoss, should be associated. I have not been able to see the 
original text of Stossich’s work (57), but know its contents, 
only through Brauidsabstractin the ‘ ZoologischesCentralblatt ^ 
aud by means of Kossack^s criticisms of it, so that I do not 
know whether H. adolphi is the worm of this group in which 
Stossich found the receptaculum seminis, but suspect that it 
is so. Three specimens of A. antigones were obtained from 
its host ; one was sectioned, and the other two were made into 
whole mounts. They are large, flat, leaf-like worms, about 
20 mm. long and 4 mm. broad. While the ventral surface is 
flat the dorsal is somewhat convex. The integument is rough 
with little tranverse corrugations. 
The character of the oral sucker and the pharynx is exactly 
the same as in T. reticula re. The structure which I have 
called the pharynx has been generally looked upon, in related 
