BY N. A. COBB, 391 



sible that it may be identical with it. However, the female has yet 

 to be seen, and that sex may present differences greater than any 

 I can find in the male. It will be observed that the spicula are 

 in form and proportions different from those of parasitijera. The 

 transversely striated cuticle bears slender hairs throughout. The 

 conoid neck ends in a truncate head bearing four ('i) submedian 

 setfe. The lips are obscure. At the first glance the lateral 

 organs would be supposed to be circular; closer observation shows 

 them to be broken circles, the break occurring on the dorsal 

 margin. These organs are one-third as wide as the head and are 

 removed from the anterior extremity a distance equal to their own 

 diameter ; the central " fleck " is a small spiral. There are no 

 eyes. The concave-conoid pharynx ends opposite the centres of 

 the lateral organs, and bears at its base a tiny dorsal tooth. The 

 oesophagus is cylindrical to the prolate cardiac bulb, the latter 

 being five-sixths as wide as the corresponding part of the neck, 

 while the tube leading to it is only two-fifths as wide as the 

 neck. The lining of the oesophagus when seen in optical section 

 appears as a distinct double line. The cardiac constriction is 

 shallow but distinct. The intestine is at its beginning only 

 one third as wide as the body, but soon doubles in size ; 

 the contents seem to consist almost entirely of greenish vegetable 

 matter. The cardia is very small. The cells of the intestine 

 contain loose granules having no visibly definite arrangement. 

 The ventral excretory pore is situated just behind the oblique 

 nerve-ring; the duct is narrow, the ampulla ellipsoidal and one- 

 half as wide as the cesophagus. The tail is conoid to the acute 

 conical terminus; caudal glands seem to be present. I saw no 

 supplementary organs. Two sub-dorsal hairs occur somewhat 

 behind the pieces accessory to the spicula. These latter are equal, 

 linear, uniformly arcuate, widened in the proximal half and 

 strongly cephalated, their length being equal to twice the anal 

 Ijody-diameter. The two accessory pieces are one-third as long as 

 the spicula and oljscurely sigmoid, on the whole appearing to be 

 perpendicular to the ventral surface of the body. There appeared 

 to be two testicles extending in opposite directions, but I was not 

 certain about that. 



