CINCTONEMA, CEPHALOBELLUS, ANTICYATHUS 



245 



set (4) 



a little, and finally enlarges to form an elongated, pyriform cardiac bulb, three- 

 fourths as wide as the base of the neck. The intestine is very narrow where 

 it joins the center of the posterior face of the cardiac bulb, hardly 

 wider than one of the annules. Very soon, however, it becomes 

 two-fifths as wide as the body. The lateral fields are about one- 

 fifth as wide as the body and contain nuclei, two of which placed omphi 

 side by side would span the field. Tail of the male conoid; on it 

 there are a few setae in front of the anus. The rather slender/ 75 

 acute spicula are about one and one-fourth times as long as the anal body- 

 diameter. 



Habitat: Sand and algae near East Drive, east shore of Kingston Harbor, 

 Jamaica. Sublimate to balsam. Fig. 22. 



III. Order Cytolaimia. 



23. Cephalobellus papilliger n. sp. * 4 - 7 5. / 6. >L6, ' '" Annules of 

 the cuticle 2.2 microns wide. Head continuous with the conoid neck. There 

 are probably six lips, but no labial papillae have been seen. The pharynx resem- 

 bles that found in the genus Monhystera, being a conoid or more or less 

 pyramidal depression one-third as wide as the head. Oesophagus cylindroid, 

 one-fourth as wide as the middle of the neck, joining a pyriform cardiac bulb 

 two-thirds as wide as the base of the neck and containing a distinct valve. 

 Lining of the oesophagus rather faint. The rather thick-walled intestine is 

 three-fifths as wide as the body, and is separated from the neck by a shallow, 

 cardiac constriction. The ventral renette cell is situated just in front of the 

 flexure in the testis. From the somewhat elevated anus the tail is conical to 

 the acute terminus. A pair of tall, conical, sub-ventral papillae are located 

 opposite the middle of the spiculum. Taken altogether, the papillae are situ- 

 ated as follows: 1; () 1; 1. Spiculum slender, somewhat irregular, twice as long 

 as the anal body diameter, placed at angle of forty-five degrees with the body- 

 axis. The ejaculatory duct was of equal length with the testis, and was con- 

 nected with it by a tube also of the same length. 



Habitat: Intestine of the larva of a lamellicorn beetle, from soil under cow- 

 dung, Moss Vale, New South Wales, Australia. 1893. 



24. Anticyathus tenuicaudatus n. sp. Body wall thick. In addition to ce- 

 phalic setae there are scattered papilloid cervical setae. Conoid oesophagus at first 



set (12) 



tTItt two-thirds, near the nerve-ring 

 four-sevenths, finally four-fifths, 

 as wide as the corresponding por- 

 tion of the neck. Oesophageal 

 lining subdistinct. There is a 

 somewhat obconoid more or less 

 "structureless'Mooking anterior 

 element of the intestine three- 

 fourths as long as the body is wide; this may be regarded as a cardia one-half as 

 wide as the neck. The thick-walled intestine, which has a faint lumen, is set off 



