916 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
Pandalus brevis, sp. nov. 
(PI. xxx, fig. 3. ) I 
Nearest to the European P. brevirostris Rathke. Although the dorsal carina arises behind middle 
of carapace, the spines begin at the anterior fifth. Rostrum short, as in the allied species, reaching 
to middle of second segment of antennula, armed with eleven to twelve spines above (five behind the 
orbit and none near the tip) and one below. 
Surface microscopically pitted, the punctae forming short transverse rows on 
the carapace. 
Eyes very short and stout, cornea covering nearly whole of stalks; ocellus 
marginal, projecting a little from the cornea. 
Last two antennular segments of equal length ; peduncle two-thirds as long 
Fig. 65 .— Pandalus as antennal scale; the latter a little more than half as long as carapace (rostrum 
brevis, type, rostrum, excluded ) ; antennal peduncle extending to middle of last segment of antennular 
x 5 «' peduncle. 
Outer maxilliped with exopod. First thoracic foot reaching nearly to end 
of acicle. Feet of second pair equal, stretching to a little beyond acicle, carpus 11-segmented. Fourth 
foot exceeding acicle by last segment and over half of penult segment. Epipods absent from last pair 
of legs only. 
Sixth segment of pleon nearly twice as long as fifth ; telson broken off. 
Dimensions. — Length of carapace proper 7.8, rostrum 2.7, abdomen, exclusive of telson, 16 mm. 
The specimen from station 4139 is very much mutilated but considerably larger, about 50 mm. long. 
Distribution. — Vicinity of Kauai Island, 512 to 339 fathoms, station 4139, 1 female; vicinity of 
Niihau Island, 426 to 417 fathoms, station 4180, 1 male (type, Cat. No. 30548). 
o 
Fig. 66 . — Pandalus 
exiguus. station 
4062, left eye, 
X 4f . 
Pandalus exiguus, sp. nov. 
(PL xxi, fig. 2.) 
A small species; body bent at a right angle at the third abdominal segment. 
Rostrum about one and three-fourths as long as the carapace, bent strongly downward in front of 
eyes, terminal half ascending; spines of dorsal crest beginning at distal third of carapace, six or seven 
in number, the posterior one minute, then increasing anteriorly for four or five 
spines and becoming more horizontal; rostrum in front of eyes unarmed except 
near the tip, where there are two small spines, lower margin armed with eight to 
ten spines. 
Abdomen nearly four times as long as carapace, slightly compressed but 
scarcely cristate at third segment, which is moderately produced at middle of pos- 
terior margin. Sixth segment twice as long as fifth and just as long as telson, 
which is armed with three pairs of side spines; inner uropods intermediate in 
length between telson and outer uropods. Eyes large, but transverse diameter not exceeding axial. 
Ocellus very large, extra-corneal. Antennular peduncle reaching to middle of acicle; second and 
third joints subequal. Acicle nearly as long as carapace, rounded at end which is in line with tip 
of spine. Antennal peduncle nearly reaching end of second segment of antennular peduncle. Maxil- 
lipeds reaching just beyond the tip of acicle; first pair of pereiopods same length. The left leg of the; 
second pair exceeds the rostrum,- its carpus composed of about 40 segments; the right leg does not 
reach end of acicle, its carpus with 12 segments. The last three legs vary little in length; the last pair 
exceeds acicle by length of dactylus and a small bit of the propodus; the spines of the merus are of 
good size. 
Dimensions. —Length of carapace of type, ovigerous female, 4.3, length of rostrum 7.5, length of 
abdomen 17 mm. 
Distribution. — Vicinity of Kauai, 233 to 40 fathoms, station 3982 (type locality) ; northeast coast of 
Hawaii, 63 to 113 fathoms, stations 4062 and 4064. Cat. No. of type, 30549. 
This species is nearest to Nothocaris rostricrescentis Bate, which is considerably larger, its rostrum 
curved more strongly upward; its sixth abdominal segment shorter. 
