146 RATHBUN 
Off Cascade Head, Oregon, 345 fathoms, station 3347. 
Off Point Arena, California, 239 fathoms, station 3349. 
Off Farallone Islands, 552 fathoms, station 3162. 
South of Farallone Islands, 217 fathoms, station 3105. 
Off Monterey Bay, 418 fathoms, station 3127. 
Off San Luis Obispo Bay, 252 fathoms, station 3195. 
Off Point Conception, 233 and 284 fathoms, stations 2891, 2892. 
Santa Barbara Channel, 322 and 314 fathoms, stations 2903, 2904. 
Gulf of California, northwest of Tiburon Island, 145 fathoms, station 3015. 
South Pacific: Lat. 15°S., long. 109° 20’ E. (Hansen); off Fijis, 315 
fathoms (Bate); south of Australia, 2150 fathoms (Bate). 
Indian Ocean (Hansen). 
Size. —The largest specimen examined (station 3195) measures 52 mm. ; 
the average length is about 4o mm. There is no indication on any of 
the labels that the specimens came from the surface or from any inter- 
mediate depth. 
Common at surface, where no specimen exceeds 30 mm. (Hansen). 
At 600, 2150, and 345 fathoms, specimens measure 38, 43, and 50 mm. 
respectively (Bate). 
SERGESTES sp. indet. 
A single mutilated female Sergestes, without maxillipeds or trunk-legs, 
was dredged by the A/datross in 417 fathoms off San Diego, California, 
station 2928. It resembles S. mollis Smith. Body stout; length about 38 
mm. The rostrum and anterior outline are as in that species. ‘There is 
a minute hepatic spine. A strong ridge runs from the anterior margin at 
the outer edge of the eye-stalk backward to the posterior margin; the 
front part of the ridge is higher up than in S. mo/lis ; at its middle the 
ridge gives off a weaker branch directed obliquely downward and back- 
ward, and then backward to the posterior margin. Gastro-cardiac groove 
deep; cervical groove present. Eyes a little shorter than in S. molits, 
reaching 24 the length of the first antennular segment; cornea brown. 
Antennular peduncle rather stout, first joint the longest, 124 times the 
second joint; second and third subequal; notch in outer side of first seg- 
ment very slight. Antennal scales broken off. Abdomen asin S. mo/iis. 
Telson broken off. No hairs visible on outer margin of outer uropod. 
Family PENAIDAZ. 
Genus Penzus Fabricius. 
PENZUS BREVIROSTRIS Kingsley. 
Peneus brevirostris KINGSLEY, Proc. Acad. Nat. Sci. Phila., 1878, 98. 
Penaeus californiensis HOLMES, Occas. Papers Calif. Acad. Sci., Vi, 218, pl. Iv, 
figs. 64-69, Igo00. 
Peneus brevirostris RATHBUN, Proc. Wash. Acad. Sci., Iv, 287, 1902. 
