1969] 
Chickering — Oonopidae 
151 
declivity; just beneath posterior border there is a strongly chitinizM 
conical projection not seen in any other species studied (Fig. 1 1 ) ; 
general form as in Figures 17-18 of female; surface nearly smooth 
and shiny with no median thoracic pit or groove. Eyes: six in two 
rows and in a compact group as usual ; posterior row rather strongly 
recurved (Figs. 12-13) and occupies nearly three-fourths of width 
of carapace at that level. Ratio of eyes ALE : PME : PLE = 12.5 : 
10 : 11. ALE separated from one another by nearly three-fourths of 
their diameter and only slightly separated from PME and PLE. 
PME contiguous for nearly their length and narrowly separated 
from PLE. Clypeus only slightly porrect; with height nearly equal 
to five-sixths of diameter of ALE. Chelicerae apparently as usual 
in the genus. Maxillae moderately convergent, slender and appar- 
ently without special modifications. Lip apparently as usual in the 
genus. Sternum: quite convex; nearly as wide as long; posterior 
end slightly bilobed and extended just to bases of fourth coxae which 
are separated by nearly twice their width; with a sparse supply of 
stiff bristles; only slightly lobed and grooved along margins. Legs: 
41—23 in order of length; no true spines observed on legs or palps. 
Palp: general features shown in Figures 14-15; only tarsus inflated; 
features of tarsus appear to be unique since no structures like these 
closely adherent and so difficult to follow have been seen in collections 
available to me for study. Abdomen: dorsal scutum covers all of 
dorsal surface except a small area just above the anal tubercle; 
ventral and epigastric scuta cover all of venter except a narrow area 
just anterior to nearly semicircular sclerite at base of spinnerets; 
genital area as shown in Figure 16; dorsal and epigastric scuta nearly 
meet dorsal to base of pedicel but diverge posteriorly so that a lateral 
area of considerable size is left uncovered. Color in alcohol : cara- 
pace, sternum and scuta all a clear yellowish brown ; legs yellowish ; 
black pigment in ocular area essentially as shown in Figures 12-13; 
abdominal areas not covered by scuta a clear white. 
Female paratype. 1.61 mm. Carapace about 0.7 mm long; about 
0.53 mm wide opposite second coxae where it is widest; about 0.3 mm 
tall; somewhat overlapped by anterior end of abdomen; otherwise 
essentially as in male (Figs. 17-18). Eyes essentially as in male. 
Chelicerae, maxillae and lip essentially as in male with minor dif- 
ferences. Sternum as in male. Second legs missing but apparently 
all legs essentially as in male. Female palp as usual in females of 
the genus. Abdomen : the three recognized scuta cover almost the 
entire abdominal surface with very little exposure of the uncovered 
white surface ; the epigynal area appears to be more or less distinctive 
