284 Macreay Memoriat Vouume. 
spreading setee arranged in the usual manner, four, z.¢., one of each submedian pair, 
being half as long as the others, these latter measuring one-half as long as the 
head is wide; lips three, each with two papillz; lateral organs probably represented 
by small elliptical markings no wider than the base of the cephalic sete and 
situated at a distance from the anterior extremity nearly equal to the width of the 
head; eyes none; pharynx infundibuliform, simple ; cesophagus sub-cylindrical, one- 
third to three-fifths as wide as the neck, widest at the pharynx and posteriorly ; 
cardiac collum distinct; intestine three-fourths as wide as the body, loosely granular 
and quite transparent ; rectum two-thirds as long as the anal body-diameter; no 
ventral gland seen; nerve-ring encircling the cesophagus squarely, half as wide as the 
cesophagus at the point encircled; body diminishing suddenly in size near the anus; 
tail conoid to the middle, where it is one-third as wide as at the anus, thence more or 
less eylindroid to the conoid terminus, which contains a small outlet for the secretion 
of the caudal glands; anus depressed, more or less open; vulva not very prominent; 
eggs three to four times as long as the body is wide and one-fourth as wide as long; 
reflexed portion of the ovary reaching nearly to the vulva. Several drawings of this 
little worm will be found on Pl. xxxrx. 
H[ab.—Soil about banana plants, Fiji, July, 1891. 
7. T. monhystera, de Man. {94-355 13mm. The smooth cuticle bears four 
sub-cephalic setee behind the six slender cephalic sete, the latter being half as long as 
the head is wide. The truncate head bears papillae round the mouth. Lateral 
organs are perhaps present. The conoid cesophagus, which is a trifle enlarged in the 
anterior fourth, is posteriorly one-half, though anteriorly one-third, as wide as the 
neck, The intestine is three-fourths as wide as the body and ends in a rectum about 
as long as the anal body-diameter. The terminus is very narrow, but mucronate. 
The eggs are over three times as long as the body is wide and one-fifth as wide as 
long. The male is unknown. 
Hab.—Marshy places, on the roots of plants, Holland, not common. 
8. T. marina, Biitschli. 5745754 138mm. Cuticle smooth; cephalic setz six, 
nearly one-third as long as the head is wide; lumen or lining of the cesophagus 
widened behind the mouth; intestine half as wide as the body, thin-walled, with a 
large cardiac cavity; lateral, median and submedian fields present, the first perhaps 
half as wide as the body; anterior two-thirds of the tail convex-conoid, thence having 
a uniform diameter one-fifth as great as at the base ; Sea g 28mm. Spicula 
cuneiform, three-fifths as long as the anal body-diameter, slightly bent near the 
middle; accessory pieces small, quadrangular. 
Hab.—Strand, Kiel, Germany. Perhaps not a 77zpyla. 
