188 University of California Publications. [ ZooLocy 
1. Augaptilus longicaudatus Claus. 
Hemicalanus longicaudatus Claus, 1863, p. 179, pl. 29, fig. 3. 
Augaptilus longicaudatus Giesbrecht, 1892, p. 414, pl. 27, fig. 31; 
pl. 28, figs. 11, 19, 23, 31, 35, 38; pl. 2, fig. 22; pl. 39, figs. 
37, 48; 1898, p. 123. 
Augaptilus longicaudatus Scott, 1894, p. 34, pl. 1, figs. 24-26; pl. 
2, fig. 5. 
Fig. 41.—Augaptilus longicaudatus. Male. (a) Dorsal X18. (b) An- 
terior maxilliped X83. (c) Right fifth foot X83. (d) 
Left fifth foot x83. 
2 Genital segment not entirely symmetrical, twice as long as 
both the following segments together; furca as long as the anal 
segment, and about 5 times as long as broad. Anterior antennae 
longer than trunk by about the last 6 joints. Inner ramus of 
posterior antennae 14 longer than the outer ramus; first and sec- 
ond joints of outer ramus not fused; mandible uniramous. 
Anterior maxilliped: First and second lobes lacking, third with 
1 bristle, fourth and fifth with 2, sixth with 1. First basal of 
posterior maxilliped with 0, 0, 1, 2 bristles. Length of first 
and second basals end inner ramus as 7:6:5. Outer ramus of 
fifth foot 2-jointed. 
he a i ees 
a 
