898 
BULLETIN OF THE UNITED STATES EISH COMMISSION. 
no small spines on the antennal segment, and the abdominal furrows are uninterrupted. The original 
description is almost entirely of the color, and is here reproduced: 
“ Palinurus birostralus; pedibus cyaneis albo maculatis; segmentis abdominalibus violaceis flavo 
marginatis. 
- “Ce crustace a le corselet brun, couvert de petites asperites et d’aiguillons,.dont deux plus 
considerables sont diriges en devant; dans leur intervalle on en voit quatre plus petits. Les antennes, 
d’un rouge violace 4 leur base, sont aussi, dans cette partie, armies de fortes Opines; elles sont 
jaunatres et couvertes d’asp6rites dans le reste de leur longueur. Les antennules, bifurquees, tres 
longues et verdatres, ont des taches rougefttres aux articulations. 
“Les pattes sont bleu de del tachete de blanc et velues a leur extremity. Un beau violet borde de 
jaune colore les anneaux de la queue; le crochet qui les termine de chaque cote est rougeatre a la pointe. 
Les cinq plaques de la nageoire de la queue sont verd&tres, avec du jaune au milieu. Leur limbe est 
denticule et borde d’une bandelette noire avec un lisere blanc.” 
Family ERYONID^E. 
Polycheles phosphorus (Alcock). 
Pentacheles phosphorus Alcock, Ann. Mag. Nat. Hist. (6), XIII, 1894, 240; Illus. Zool. Investigator, 
Crust., Part II, pi. vm, fig. 2, 1894. 
Polycheles phosphorus Alcock, Desc. Cat. Indian Deep-Sea Crust. Dec. Macr. Anom., Calcutta, p. 168, 
1901. 
The large series of specimens exhibits additional variations to those given by Alcock. The lateral 
marginal spines of the carapace may be more numerous; there are frequently seven in front of the first 
sinus, sometimes five between the sinus and the cervical groove, and behind the groove there may be 
as many as ten; there may be five median spines between the anterior spine and the cervical groove. 
The carpus and manus of the first pair of feet are usually finely spinulous above, while in one 
large specimen (station 3824) the merus is unarmed except for the terminal spine. 
Color note attached to male, station 3816: Dorsum pale opaque rose madder, darkest on abdomen; 
ridges of carapace opaque white; swimmerets, thoracic legs and mouth parts deeper madder yet 
still pink. 
Distribution. — Kaiwi channel, 298 to 470 fathoms, stations 3467, 3476, 4109, 4110, 4111, and 4112; 
south coast of Oahu Island, 228 to 337 fathoms, stations 3816, 3907, 3910, 3911, 3917, and 3920; south 
coast of Molokai Island, 222 to 498 fathoms, stations 3824, 3836, and 3839; Pailolo Channel, 277 to 684 
fathoms, stations 3867, 3868, 3883, and 3884; north coast of Molokai Island, 328 to 809 fathoms, stations 
3887 and 3892; vicinity of Modu Manu, 222 to 800 fathoms, stations 3979 and 4166; vicinity of Kauai 
Island, 55 to 703 fathoms, stations 3986, 3988, 3995, 3998, 4015, 4028, 4130, 4132, 4134, 4135, 4137, 4138, 
and 4187 ; between Honolulu and Kauai Island, 508 to 557 fathoms, station 4007 ; north coast of Maui 
Island, 253 to 283 fathoms, stations 4084 and 4085; northeast approach to Pailolo channel, 286 fathoms, 
station 4097; northwest coast of Oahu Island, 241 to 282 fathoms, stations 4116 and 4117. 
Polycheles snyderi, sp. nov. 
(PL xxiv, fig. 9.) 
Carapace elongate-quadrate, depressed, lateral borders parallel except toward the extremities, its ( 
length equaling the abdomen less half the telson. Frontal border concave, armed with two spines at li 
middle, one at each angle of orbit, and two or three between the outer orbital spine and the antero- 
lateral angle. Orbital notches deep, narrow-triangular; a spine at frontal end of eyestalk. Lateral j! 
borders armed with small spines, which are larger and fewer anteriorly ; they number 10-6 to 8-30. 
Upper surface covered with rough granules from which hairs arise. Median earina double, spinulous, 
similar carinse following both branches of the cervical groove. On either side of the branchial region 
a fine, oblique and sinuous line of spinules; an ill-defined line of larger spinules extending backward 
from the orbital sinus. The two longitudinal ridges of the side wall crenulate, the upper posteriorly 
obliterated. 
The first to fifth abdominal terga and also the base of the seventh are bluntly carinated in the 
middle line, the earina not projecting nor spined. 
