SYNODONTIUM. DAPTONEMA 



281 



as long as the spicula. Their uniform, blunt apophyses extend backward at an 

 angle of ninety degrees with the spicula, and are one-half as long as the anal 

 body diameter. Fifty to seventy equidistant supplementary organs, in the form 

 of a series of slight undulations, extend forward in front of the anus a distance 

 three to four times as great as the length of the tail. The undulations are sepa- 

 rated from each other by a space about equal to one-fourth the body diameter, 

 though they become gradually a little farther apart anteriorly. Thejr eleva- 

 tion is slight, and every other undulation is opposite a granular, saccate gland, 

 about one-third as wide as the body. These glands form a contiguous series 

 and seem to empty ventrally. There is no bursa. The ejaculatory duct is one- 

 third, and the testes are one-half, as wide as the body, these latter gradually 

 tapering so that they are narrow at the extremities. 



Habitat: Sand, below Bathing Beach, Woods Hole, Mass., U. S. A. Also 

 beach-sand, Squibnocket, Martha's Vineyard, Mass., U. S. A. Flemming to 

 glycerine jelly. Fig. 65, p. 280. 



66. Daptonemafissidensn. sp. w 2 - 8 3 - ? Type species. The 



contour of the moderately thick cuticle is crenate, the annules being separated 

 by refractive lines. Toward the head end the $ cp/f (/2) 

 annules diminish in width until they elude detec- 

 tion. Neck conoid; head rounded. Here and 

 there on the neck occur long, slender hairs, as 

 long as those on the head, but colorless and very 

 much more slender. Each of the six lips is 

 strengthened by three, dark-brown, or blackish, 

 strongly arcuate, incurved, slender, acute, cutin- 

 ized ribs or teeth. Lips capable of being 

 turned over into the pharynx so as to form a 

 flattish, centrally indented dome. From the 

 head backward the oesophagus narrows a little, 

 becoming two-thirds as wide as the correspond- 

 ing portion of the neck. There is no very dis- 

 tinct cardia. The rather thick-walled intestine 

 becomes at once about half as wide as the body, 

 and in cross-section presents about four cells. 

 The cells contain scattered brownish granules, 

 of variable size, the largest of which are nearly 

 as wide as one of the annules of the cuticle. The 

 lumen of the intestine is quite narrow, and its 

 lining somewhat refractive. Renette unknown. 

 The tail of the male is conoid from the anus to 

 the somewhat blunt terminus, which has a plain, 

 rather blunt spinneret, armed with two setae 

 considerably longer than the diameter of the ^ 

 terminus. The caudal glands appear to be 

 located in front of the anus. The brownish 

 spicula have been seen only in dorso-ventral 

 view. The accessory pieces are curved distally ase m 



in the same way as the spicula, and end in minute points. The ejaculatory duct 

 is about one-third, the vas deferens about one-half, as wide as the body. 



Habitat: Larat, East Indies; marine. In the general form of the neck and 

 pharynx these nemas closely resemble Monhystera, but the food habits are 



Illl 



