Coss—Nematodes, mostly Austrahan and Fijian. 283 
Ffab.—Mud and moist earth, and among conferve, Holland, and Frankfort, 
Germany. 
3. T. affinis, de Man. ee ae 14mm. Cuticle marked by about four 
hundred transverse strize ; cephalic papille in three rows of six each, the middle row 
largest and representing the setze ; cesophagus conoid, in its narrowest part less than 
half as wide as the neck, with a distinct cephalic swelling; intestine tessellated, 
nearly two-thirds as wide as the body; rectum equalling the anal body-diameter in 
length; juncture of the cesophagus with the intestine forming a bulb-like swelling ; 
terminus one-fifth as wide as the base of the tail; vagina half as long as the body is 
wide; eggs one and one-half times as long as the body is wide, and one-third as wide as 
x D D O; 8: 19° M 83: 
long; ovaries extending two-thirds of the way back to the vulva. 3-33-39 V4 mm. 


A ventral row of fourteen equidistant accessory organs extend from the anus to near 
the mouth; spicula elongated-cuneiform, nearly straight, rather acute, equal in length 
to the anal body-diameter ; accessory pieces rudimentary. 
Ffab.—F ound in moist marshes and meadows, Holland. 
4. T. glomerans, Bastian. Female unknown. $3-pas-e 23mm. Cuticle 
traversed by about six hundred and eighty transverse striz ; cesophagus cylindroid, 
half as wide as the neck; intestine three-fifths as wide as the body; pseudo-bulb flat; 
terminus one-seventh as wide as the base of the tail; spicula arcuate-cuneiform, 
shghtly exceeding the anal body-diameter in length ; accessory pieces one-fourth as 
long as the spicula. 
F[ab.—Mud of ponds, England. 
5. T. arenicola, de Man. a1 als 14mm. Cuticle smooth; head truncate, 
bearing ten sete arranged as usual, the submedian pairs unequal, the larger ones 
being half as long as the head is wide and very stout and acute; lips with a row of 
small papille in front of the sete ; cesophagus conoid, anteriorly one-third, but 
posteriorly one-half, as wide as the neck; intestine two-thirds as wide as the body, 
without distinct tessellation ; rectum exceeding the anal body-diameter in length ; 
pseudo-bulb present ; tail ventrally arcuate ; terminus narrow, rounded, mucronate ; 
this and the following distinguished from the remaining species by the asymmetrical 
female sexual organs; ovary reaching three-fourths the way back to the vulva. 
Male unknown. 
Hab.—F ound in Holland. 
7 26 
A : ct fetta MU Ge 94° 2 = = 
6. T. minor, n.sp. x3-ga-ge-30 33 12mm. Cuticle apparently without markings; 
hairs minute, if any; neck cylindroid; head truncate, bearing on its outer margin ten 

