902 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxiv. 
maxillipeds extend either to the tip or nearly to the tip of antennal 
scale. Feet of second pair subequal, carpal segments 18 to 21. 
Third, fourth, and fifth pairs of feet subequal, dact3di subequal. 
Dimensions. — Adult female, length 132 mm., length of carapace 
and rostrum 61.5 mm., of rostrmn 33 mm. 
Type Jocal'ity. — Off Segouam, Aleutians, 2S3 fathoms, station 31:80, 
U. S. Fish Commission steamer Alhafroi^s (Cat. No. 2.5280). 
PANDALOPSIS LONGIROSTRIS. 
Near /*. aleutlca. Rostrum more than twice the length of remainder 
of carapace, strongly upturned. Antennal scale as long as carapace. 
Chelai of second pereiopods with lingers almost as long as palm. 
Dimensions. — Male, length 112 mm., length of carapace and rostrum 
69 mm., of rostrum 41 nun. 
Type locality. — Oil" lliuliuk Harbor, Unalaska, 309 fathoms, station 
3316, U. S. Fish Commission steamer Albatross (Cat. No. 26690). 
PANDALOPSIS DISPAR. 
Rostrum from 2 to 2i times as long as the rest of the carapace; 
superior spines 16 to 21, 3 or 4 on carapace, posterior spine at anterior 
third of carapace, spines extending along whole length of rostrum; 
inferior spines 9 to 15, tip bifid, C-arpal segments of second pair of 
feet, 26 to 33. Third, fourth, and fifth pairs of feet nearly equal, their 
propodi increasing in length in the order named, while the dactjdi 
increase in reverse order. Outer branch of swimming fan about as 
long as telson; inner ])ranch much shorter. 
Dimensions. — Length of female 181 nun., length of carapace and 
rostrum 100.6 mm., of rostrum 73.5 mm. 
Ty2:)e locality. — Chernoffski Harbor, Unalaska, 109 fathoms, station 
3324, U. S. Fish Commission steamer Albatross (Cat. No. 25281). 
Distribution. — From Bering Sea to Washington, 53 to 351 fathoms. 
Family PONTONIH)^E. 
PONTONIA CALIFORNIENSIS. 
Rostrum more than one-third the length of remainder of carapace, 
very narrow, deflexed, reaching middle of second antennular segment; 
this is one and a half times as long as third, both together half as long 
as first. Antennal scale scarcely exceeding antennular peduncle; 
antennal peduncle reaching end of scale. Of the first pair of feet the 
merus and carpus are subequal, the propodus a little shorter than the 
carpus, palm and fingers subequal. Right foot of second pair miss- 
ing, merus of left foot short and stout, carpus cup-shaped, palm and 
fingers subequal in length, palm two-thirds as broad as long, fingers 
