250 S. GOTO. 



proper. Anterior siiclcers of moderate size, nearly circular. Posterior 

 Slicker slightly elliptical, with its major axis coinciding with the 

 median line of the body ; with a diameter equ:d to the breadth of the 

 body at the plane of the mouth ; with its internal surface divided into 

 areas like those of T. ovale and T. foliaceum. Hooks in one pair, in a 

 position similar to that in the two species just mentioned, long, 

 slender, slightly curved, with a narrow cavity in the interior, 0.18 mm. 

 long. 3Io^ith small, a little in front of the plane of the hinder end of 

 the anterior sucker. PJumjnx elongated, with a constriction at the 

 middle of its length as in T. ovale and T. follcaceum. Oesophagus 

 very short. Intestinal trunks continuous behind just in front of the 

 posterior sucker, enclosing an area of a similar form to that of the 

 body, but with the posterior commissural limb straight ; with nume- 

 rous, dendritic branches on the outer side and with a few short, 

 simple branches on the inner. Common (jenital opening a little behind 

 the anterior sucker of the left side. Fenis short and small, club- 

 shaped. Ovanj in the hinder part of the anterior half of the body 

 proper, irregularly globular, not lobed. Oviduct arising from the front 

 end of the ovary, thence proceeding forwards with a slight winding or 

 two, and soon continued into the ootyp. Uterus of moderate length, 

 opening into the genital atrium at a short distance from its external 

 pore. Vitellarium present not only in the lateral regions and the anterior 

 lobe of the body but also on the whole dorsal side of the posterior two- 

 thirds of the median region enclosed by the intestinal trunks; but in the 

 latter region the lobes are more sparsely distributed than in the 

 former. Paired yolk-ducts formed as usual by the union of large ducts 

 coming from the anterior and the posterior part. Yolk-reservoir and 

 unpaired yolk-duct as usual. Vaginal opening a little behind the common 

 genital opening but nearer the median line ; vaginal canal proceeding, 

 as usual, backwards and inwards with numerous convolutions, formino^ 



