168 The American Naturalist. : February, 
(3-toothed?) apically. First pair of maxillee 3-jointed, joints about 
equal in length, basal joint stoutest, second and third joints decreasing 
in width ; two pairs of palpi springing from inner side of basal joint, 
these palpi apparently also 3-jointed, joints of equal length, basal 
stoutest, second and third successively narrowed. Second pair of max- 
illæ with one pair of palpi, these palpi apparently 2-jointed, first joint 
moderately narrow, terminal joint elongate, bristle-like, tapering to a 
Fig. 3.—a, case—natural size; b, case—enlarged ; c, portion of case— 
enlarged ; d, portion of case—greatly enlarged. 
point ; spinneret 3-jointed, joints sub-equal in length, basal joint stout, 
terminal joint pointed. Second segment corneous, with a transverse 
row of about eight roundish markings near posterior margin, and 8. 
median pair just anterior to row. Other segments fleshy, the integu 
ment of all segments except head microscopically warted, in the pres- 
ent alcoholic specimen much wrinkled, especially on third segment ; 
third segment somewhat wider than second, fourth a little narrower, 
segments 5 to 10 about same width, 11 to 12 nearly as wide; segmen 
2 to 12 subequal in length. Thirteenth or anal segment narrowed, 
shortened, longitudinally bifid on the median line posteriorly, fur- 
