Coss—NVematodes, mostly Austrahan and Fijian. 259 
ovaries are short. }4+.7-, 17mm. The tail of the male resembles that of the female 
in form. A ventral row of ten to eleven large papillee occurs in front of the anus. 
Dorsal as well as ventral papillee are found on the tail. Each of the two equal 
arcuate spicula is stiffened by an extra central piece of horn. The accessory piece is 
two-parted and surrounds the spicula. 
Hab.—Soil in meadows, Western Europe ; common. 
| Bie fea ye Usb ee ak C : 2 a s 
7. M. parvus, de Man. }—33-q7 52-3 11mm. The conoid neck terminates in a 

head with an expanded lip-region bearing the usual two circles of papillee of which 
the inner are the larger. The pharynx is a little over one-third as wide as the head, 
the dorsal tooth being small and central. There are two small submedian teeth at 
the base of the pharynx. The intestine is two-thirds as wide as the body and ends 
in arectum two-thirds as long as the anal body-diameter. The reflexed ovaries reach 
three-fourths the way back to the vulva. 
H1ab.—This active species is common in sandy meadows, Holland. 
8. M. cristatus, Bastian. 32)" *5 um. The cesophagus is about half as 
thick as the neck. The intestine is two-thirds as wide as the body and ends in a 
rectum two-thirds as long as the anal body-diameter. 
Ffab.— England. 
9. M. minor, n.sp. An immature female gave the formula $37 3a3-37 
The head is less truncate than usual. What appear to be lateral organs occur 
opposite the anterior part of the pharynx. This latter is pyriform, being broadest 
anteriorly and is approached through a narrow vestibule nearly one-third as long as 
itself The thumb-shaped dorsal tooth projects half way across the pharyngeal 
cavity somewhat above the middle, and is opposed by half-a-dozen transverse rows of 
rasp-like teeth one micromillimetre apart, the upper of these rows being opposite the 
apex of the tooth and the lower opposite its middle. The intestine is three-fifths as 
wide as the body, and the rectum is nearly equal to the anal body-diameter in length. 
The lateral fields are one-third as wide as the body. The terminus of the tail is one- 
third as wide as the base. The anatomy of this worm is well set forth on Pl. xxxvi. 
1*mm. 
Ffab.—In soil about banana plants, Fiji, 1891. 
: . 25 2 23: “6T" 93° : R 
10. M. papillatus, Bastian. $3+35—+—33 13tozsmm. The triquetrous pharynx is 
about one-third as wide as the head, and has the rather small dorsal tooth situated 
a little in front of the middle. | The intestine is two-thirds as wide as the body. 
Hab.—Among moss and grass, Western Europe ; common. 
