154 University of California Publications. [ ZOOLOGY 
Euchaeta pulchra Brady, 1883, p. 638, pl. 14, fig. 7; pl. 20, figs. 
ilbyealye ale 
Euchirella pulchra Giesbrecht, 1892, pp. 233, 244, pl. 15, figs. 22, 
23, pl. 36; figs. 13, 27; 1898, p. 36. 
d 
Fig. 20.—Euchirella pulchra, (a) Female, lateral, X9. (b) Fifth foot 
of male X45. (c) Rami of posterior antennae, to show 
relative lengths; bristles omitted, 83. i., inner ramus. 
(d) First basal of fourth foot of female 140. 
2 Front with low crest (fig. 20a) and small rostrum. Genital 
segment asymmetrical; left side strongly convex in front of the 
middle of the segment, right side indented. Inner ramus of pos- 
terior antennae about 24 as long as outer ramus; second joint of 
inner ramus with 6-5 bristles. First basal of fourth pair of feet 
(fig. 20d) with one or two thorns about equal in length on the 
inner border, which do not reach the distal margin of the joint. 
Outer bristle of the second joint of the outer ramus of the second | 
pair at most as long as the first outer bristle of the third joint. 
