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 Cahfomia, northwest of Tiburon Island, 145 fathoms, station 301 5. 



South Pacific: Lat. 15OS., long. 109° 20' E. (Hansen); off Fijis, 315 

 fathoms (Bate) ; south of Austraha, 2150 fathoms (Bate). 



Indian Ocean (Hansen). 



Size. — The largest specimen examined (station 3195) measures 52 mm. ; 

 the average length is about 40 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 Albatross 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. mollis ; 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. mollis, 

 reaching ^ the length of the first antennular segment ; cornea brown. 

 Antennular peduncle rather stout, first joint the longest, lyi times the 

 second joint ; second and third subequal ; notch in outer side of first seg- 

 ment very slight. Antennal scales broken off. Abdomen as in S. mollis. 

 Telson broken off. No hairs visible on outer margin of outer uropod. 



Family PEN^ID^. 



Genus Penaeus Fabricius. 



PEN^US BREVIROSTRIS Kingsley. 



Peneus hrevirostris Kingsley, Proc. Acad. Nat. Sci. Phila., 1878, 98. 

 Penceus californiensis HOLMES, Occas. Papers Calif. Acad. Sci., Vll, 218, pi. IV, 



figs. 64-69, 1900. 

 Penceus hrevirostris RATHBUN, Proc. Wash. Acad. Sci., IV, 287, 1902. 



