6 AnneUda Ghcetopoda 
Elytra, 12 pairs, completely covering the back. First 
Dair nearly circular, the others oval, slightly broader 
Dehiud than in front (pi. I, f. 7). Posterior and outer 
margin coarsely fringed ; an isolated patch of fringe on the 
inner margin, not arising from the edge, but from the sur- 
face of the elytron near the edge. Along the inner border 
where there is no fringe, is a series of minute papillae. 
When not magnified the elytra seem to be smooth. In 
reality they are covered with minute, sharp, spine-like pro- 
jections. The color of these little spines is usually reddish 
brown, though they may be any shade of brown, or even 
white. 
The dorsal cirri are about one-half the length of the 
middle antenna, and have the same form. They arise 
from a stout basal article, much swollen along its inner 
half; outer half cylindrical. They project by about one- 
third of their own length beyond the setae. The feet are 
large, in length about equal to the width of the body, 
somewhat compressed, diameter suddenly diminishing at 
outer third, truncated externally. Setae of dorsal ramus 
numerous, delicate, usually covered, with a single series 
of rather coarse denticulations (pi. II, fig. 12). Those of 
the lower ■ ramus, stout, bidentate (pi. I, figs. 9, 10); 
superior tooth very little curved, projecting some distance 
beyond the inferior. Below the apex there are a few stout 
denticles. Of the terminal teeth, the lower is frequently 
worn oflf (pi. II, f. 13). The setae of the lower ramus are 
somewhat variable in form, as shown in the figures. 
Those of the first segment are not bidentate (pi. I, f. 11). 
Thu ventral cirri arise at about the inner third of the feet, 
from a small, rounded, basal article ; they are minute, 
conical (pi. I, f. 8). There are two very long anal cirri, 
longer than the middle antenna. The dorsal cirri of the 
last segment turn directly backward, and reach about one- 
