BY N. A. COBB. 



393 



conoid from the depressed anus to the barely swollen apiculate 

 and naked terminus, which gives exit to the secretion of the 

 caudal glands. The vulva is inconspicuous. The eggs are four- 

 fifths as wide as the body and twice as long as wide. 



Found in sand, near low-tide mark. Port Jackson, New South 

 Wales, Australia. 



Sphaerolaimus, Bastian. 



V8 ? 17- —55-^^ S3- - „ 

 SpHAEROLAIMUS HIRTICOLLIS, n.sp. 2^5—? — 4^2 4F6 — 3-2 ^''^™'^- 



The transparent cuticle is traversed by transverse stria? l"2/x 

 apart, composed of dots resolvable only with high powers; these 

 dots have also a tendency to an arrangement in longitudinal lines. 

 The anterior half of the neck bears numerous slender hairs three- 

 fourths as long as the body of the worm is wide; the remainder 

 of the body nevertheless bears only short and very inconspicuous 

 hairs. The cylindroid neck becomes convex-conoid anteriorly 

 and ends in a sub-truncate head bearing opposite the middle of 

 the capacious pharynx a circlet of twelve rather uniform and 

 comparativel}^ stout bristles having a length half as great as the 

 long cervical hairs and being arranged in pairs, one pair occurring 

 on each median and submedian line. The lips, probably six 

 in number, bear six setose papillfe, one on each lip. The 

 .structure of the lips seems to be similar to that found in 

 Oiicholaimvs, where each lip approximates in shape to a spherical 

 triangle, the six ■ together forming a kind of dome over the 

 pharynx; needless to say they can be separated wide apart and 

 used in seizing hold of food. The lateral organs are situated 

 opposite the posterior jDart of the pharynx; they are of the sort 

 found on all species of Monhystera, but are, I think, instead of 

 being exactly circular, somewhat longest in the transverse direc- 

 tion. Their longest diameter -is not far from one-fourth as Ions 

 as the width of the head. There are no eyes. The triquetrous 

 pharynx is one-half to two-fifths as wide as the head and about 

 twice as deep as wide ; anteriorly its walls are transparent, pos- 

 teriorly they are less so, the change occurring suddenly near the 

 middle. The pharynx contains no teeth or other biting arma- 



