Coss— Nematodes, mostly Australian and Fivan. 299 
the proximal half, about twice as long as the tail or considerably longer than the 
anal body-diameter ; no traces of accessory organs ; ejaculatory duct at least three 
to four times as long as the spicula ; spermatozoa large and spherical ; lateral wings 
or projections three, closely approximate, giving rise to four longitudinal lines when 
the lateral view is interpreted by the microscope. 
Hab.—Roots of cabbage, potato, banana, radish, pea, peanut, cow-pea, bean, 
squash, pumpkin, sanfoin, melon, cucumber, tomato, beet, plum, apricot, peach, 
almond, fig, walnut, willow, gourd, begonia, sunflower, amaranth, dahlia, purslane, 
ego-plant, spinach, maize, orange, grape, mulberry, morning-glory, petunia, spireea, 
buddleia, shepherd’s purse, blackberry, and probably numerous other plants, New 
South Wales, Queensland, and Victoria. 
2. T. devastatrix, Kiihn. 24,22 “524 mm. The cuticle is traversed by 
about one thousand plain transverse striz. The slightly convex-conoid neck termi- 
nates in a truncate head, the limits of whose i, lip renin, 
1D-reol = f = b, tip of spear. 
lip-region are not easily made out. The lips oa aa aaoking: ball 
d, nerve-ring. 
e, excretory pore. 
J, muscles for moving the spear 
forward, 
g, posterior cesophageal swell- 
ing. 
h, excretory gland. 
i, hind end of spear. 
j, loop in ovary. 
k, right spiculum or penis. 
1, muscles for opening the vulva. 
m, the vulva. 
n, glandular (?) bodies. 
o, bursa. 
p, hind end of ovary. 
q, uterus containing spermato- 
zoa and one segmenting 
are rudimentary, and there are no papille, 
unless they be represented by exceedingly 
minute projections immediately round the nar- 
row mouth-opening. The well-developed spear 
is-moved forward by three muscles passing 
obliquely from the three bulbs to the outer 
margin of the lip-region. The muscular ellip- 


soidal median bulb, lying just in front of the 
middle of the neck, has the same width as the 
: OusP0 egg at. 
head; its distinct three - chambered central Pieaeniers 
eavity is thickly lined with chitin, which serves Taouealgat on female seer al 
opening. 
as the internal attachment of nucleated radial a blinded Gf posterior sede 
mentary ovary. 
muscles. Somewhat behind the oblique nerve- py tinbesting showing its Gatluler 
structure. 
ring the cesophageal tube begins to. expand, ‘i brea sastiol! of ad/eom: 
and, continuing to do so to the end, thus forms | ee k 
; y, wings of the cuticle. ; 
a posterior bulb (fully one-fourth as long as the BGO ONO Ge 
Fig. 9.—Side view of the devastating eel-worm. 

neck), which always contains about three large 
I, afemale worm. II, head of the same worm 
nuclei. These nuclei appear to me to indicate more highly magnified. III, tail of a male. IV, 
: c : view from below, of the female sexual opening. 
that this bulb or swelling is glandular rather _ V, cross-section of the worm passing through the 
: . 3 a . sucking-bulb. WI, front view of the penes and 
than muscular in function. The intestine begins their accessory parts. VII, cross-section through 
i : . the middle of a female, showing how the body- 
as an exceedingly fine tube leading backward cavity is filled completely by the ovary () and the 
from the esophagus ; it soon becomes three- Baio 
fourths as wide as the body, and appears to be made up of two rows of cells 
packed with coarse granules. The limits of the rectum are indefinite, but it 
