TYLENCHUS ALATUS na. sp. 489 
widest part, a little in front of the middle, are one-fifth as wide as the cor- 
responding portion of the body, and are only very slightly cephalated by ex- 
pansion. Their proximal ends lie opposite the body axis. In their posterior 
three-fifths they taper to a rather blunt point. Seen in profile, they are ob- 
scurely falcate in contour. The dorsal contour is almost a uniform curve; yet 
there is a slight incurvature in the proximal third. On the other hand, the ven- 
tral contour has an obvious but slight low projection just a little anterior to the 
middle. The gubernaculum, closely parallel to the spicula, consists of a single, 
strongly refractive piece about 1.5 microns thick, and a little more than half 
as long, and not more than one-fourth as wide, as the spicula; its proximal 
end is well dorsad of the body-axis. It is possible that there are very minute 
papillae, ventral or subventral, on the posterior lip of the anal opening. The 
anterior limit of the single testis is uncertain, but the blind end is believed to 
be about as far behind the cardiac region as this latter is behind the anterior 
extremity. 
Nothing is known about the female, there being only a single male specimen 
submitted. 
Habitat. Said to be from Cinchona, Africa; submitted by Dr. Sandground, 
from a collection by Dr. R. P. Strong. 
Diagnosis. Distinctly annuled TJ'ylenchus, dimensioned as in the formula, 
with strongly-developed wings, spear, and bursa. 
