186 University of California Publications. [ ZooLoGy 
Like papilliger, but the anterior antennae reach somewhat 
beyond the end of the furea. Inner ramus of anterior maxilli- 
peds with longer bristles; inner marginal bristle of first and 
second joints of inner ramus of fifth foot in the female short and 
slender, that of the first joint of the outer ramus thick and . 
hooked; second basal of the right fifth foot in the male with a 
long lamellar process, the second joint of the outer ramus with 
a shorter projection on the inner border, third relatively longer, 
especially on the left side. 
Length: Male, 2-2.5 mm. 
Occurrence: San Diego, July 22, 1903, one male; June 23, 
1904, one male. 
4. Heterorhabdus longicornis Giesbrecht. 
Heterochaeta longicornis Giesbrecht, 1889, p. 2; 1892, pp. 373, 383, 
pl. 20, figs. 14, 21, 25, 26; pl. 39, fig. 44. 
Heterorhabdus longicornis Giesbrecht, 1898, p. 116. 
Heterorhabdus zetesios Wolfenden, 1902, p. 367. 
Heterorhabdus longicornis (male) Wolfenden, 1904, p. 124, pl. 
9, fig. 34. 
Fig. 40.—Heterorhabdus longicornis. Male. (a) Third foot 140. (6b) 
Right fifth foot X140. (c) Left fifth foot «140. 
2 Anterior antennae reach beyond the end of the furca for 
the last eight or nine joints; inner ramus of maxilla with five 
bristles, first and second inner marginal lobes relatively long; 
anterior maxillipeds with a greater number of bristles, but with 
a en 
