Cobb — Nematodes, mostly Australian and Fijian. 21 



intestine is two-thirds as wide as the body, its cells containing coarse granules. 

 The cardia is deep and the cardiac cavity is distinct. The anterior half of the tail is 

 conoid, the posterior half setaceous. The reflexed ovaries reach nearly to the slightly 

 projecting vulva. The thin-shelled eggs are two-thirds as long as the body is 

 wide and two-thirds as wide as long, and begin segmenting while in the uterus. 

 2 - "'6 ^4-8 4-6 ^s'e 38 mm. The autcrlor two-fifths of the male tail is conoid and ventrally 

 arcuate ; thence it is setaceous. The anal region is slightly elevated. Of the male 

 papillae at least all thi'ee pairs of the closely approximated third group and four other 

 pairs are present. Of these latter four, three pairs occur opposite the middle of the 

 spicula, two being ventrally submedian and close together, and one lateral, slightly 

 farther back ; the fourth pair — lateral — is as far behind the anus as the foremost of 

 the other three is in front of it. The closely approximated three pairs, situated where 

 the tail suddenly narrows, are associated with a slight ventral swelling. The spicula 

 are linear, gently arcuate and nearly twice as long as the anal body-diameter. The 

 slender accessory pieces are somewhat sigmoid in form, their internal ends turning 

 forward, while their opposite ends are applied to the distal parts of the spicula. Only 

 a small portion of the testicle is reflexed. The testicle and vas deferens are of about 

 equal length. 



Hab. — Decaying outside sheaths of banana plants, Fiji, July, 1891. 



8.. D. graminum, n.sp. Female unknown. ''^ 1-9 2-6 "-9 3-2 — Fe ^smm. The cuticle is 

 marked transversely by very fine striae. The pharynx is as deep as the head is wide, 

 and, when seen in profile, appears much narrower in its posterior half than in its 

 anterior half because of the presence in the posterior part of the large and pointed 

 dorsal tooth ; anteriorly the pharynx is half as wide as the head. The ellipsoidal 

 median bulb is two-thirds as wide as the neck and is less elongated and more pro- 

 nounced than the posterior bulb. The tubular part of the oesophagus is rather uniform 

 in diameter, the anterior half being but little wider than the posterior half The 

 ventral excretory pore is situated somewhat nearer the cardiac than the median bulb. 

 The granular intestine is three-fourths as wide as the body. The anterior fifth of 

 the tail is ventrally arcuate and conoid; thence onward it is setaceous. The arcuate- 

 cuneiform spicula are equal to the anal body-diameter in length and are supplied with 

 arcuate accessory pieces half as long. These latter are slender and make a slight 

 angle with the spicula. Six pairs of papillae were seen : 1, a ventrally submedian 

 pre-anal pair opposite the proximal ends of the spicula ; 2, a ventrally submedian 

 pair somewhat behind the anus ; 3, three approximated submedian pairs somewhat in 

 front of the place where the tail becomes rather suddenly setaceous ; 4, a dorsal pair 

 (or only one, I am not positive) somewhat behind the three pairs just mentioned. 



Hab. — Grass, Sydney, New South Wales, Australia. 



* See, however, D. australis, p. 269. 



