908 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
Sicyonia lsevis Bate. 
(PI. xx, fig. 7.) 
Sicyonia Ixvis Bate, Challenger Macrura, 298, pi. xliii, fig. 5, 1888. 
Distribution.— Pailolo Channel, 138 to 140 fathoms, station 3859; vicinity of Kauai Island, 233 to 
40 fathoms, station 3982; three specimens in all. 
Bate’s single specimen was taken by the Challenger north of New Guinea in 150 fathoms. Our 
specimens agree fairly well with his description and figure. There is, however, no acute tooth below 
the orbit, but a very rounded one. The rostrum of only one is perfect, and that is a little different 
shape from Bate’s figure — the tip is more broadly rounded and there are four teeth above and three 
terminal. 
Sicyonia longicauda, sp. nov. 
(PI. xx, fig. 6.) 
Surface covered with very short setae, easily rubbed off. 
Rostrum reaching beyond the eye-stalks, as far as the end of the first antennulary segment; 
strongly ascending; armed with three spines above, the posterior of which lies a little behind margin 
of orbit; tip oblique truncate, with three projections, a tooth between two spines. Dorsal carina pro- 
longed nearly to posterior margin of carapace, armed with two strong teeth, one gastric and one car- 
diac, about as far distant from each other as the anterior one is from the spine at base of rostrum. A 
strong hepatic spine. 
Abdomen sparingly sculptured; a strong sharp dorsal carina which forms an acute tooth on the 
first segment and ends in a similar tooth on the sixth segment; this segment unusually long, nearly 
twice as long as fifth. Telson longer than sixth segment, channeled above, a pair of lateral spines 
not far from the tip. 
Eyes very large, horizontally flattened. Basal segment of antennule armed with two slender 
spines on its outer border. Flagella no longer than the second segment of the peduncle. 
The peduncle of the antenna scarcely reaches the middle of the scale; flagellum, to last three 
segments of abdomen; basal segment armed with a strong outer spine. 
Sternum armed with a flattened spine which arises between the bases of the legs Of the fourth 
pair, but extends forward in advance of the bases of the third pair. 
Both branches of swimming fan shorter than telson; outer branch shorter than inner. 
Length 78; carapace 28 mm. 
This species can be distinguished by its elongate sixth abdominal segment. 
Distribution . — No species of Sicyonia has hitherto been found in a depth of more than 200 fathoms. 
Kaiwi Channel, 295 to 351 fathoms, stations 3467, 3472, 3475, 3476, and 4105; south coast of Oahu 
Island, 228 to 330 fathoms, stations 3815, 3907, 3908, 3909, 3914, 3916, 3917, 3918, and 3920; Pailolo 
Channel, 256 to 311 fathoms, station 3865 (type locality), 3866, 3867, 3883, 3884, 3898, 3899, 3900, and 
3901; vicinity of Kauai Island, 53 to 324 fathoms, stations 4002, 4130, 4132, and 4134; north coast of 
Maui Island, 202 to 267 fathoms, stations 4081, 4082, 4083, and 4084; northeast approach to Pailolo 
Channel, 272 to 290 fathoms, stations 4095, 4096, and 4097; southwest coast of Oahu Island, 192 to 352 
fathoms, station 4122. Cat. No. of type, 30823. 
Family SERGESTIDvE. 
Sergestes tenuiremis Kroyer. 
Sergestes tenuiremis Kroyer, Kongel. Danske Yidensk. Selsk. Skr. , 5 Raekke, naturvidensk. math, 
afd., IV, 1859, 255 and 278, pi. iv, fig. lla-6. Hansen, Proc. Zool. Soc. London, 1896, 949 
and 951. 
Between Erben Bank and Kaiwi Channel, station 3803, 50 fathoms, in open intermediate tow-net, 
one specimen. 
