BRACHYURA AND MACRURA OF HAWAIIAN ISLANDS. 
921 
latter. First pair of ehelipeds very slender; if extended, the chela would overreach the acicle; merus 
and carpus subequal in length, chela three-fourths as long as carpus, palm and fingers subequal. Legs 
of second pair stout, extending beyond the acicle by the chela and half the carpus; merus of right or 
larger foot nearly as high as long, two small teeth on the outer distal margin; carpus cyathiform, 
distal margin very thin; propodus a little more than twice as long as wide, 
inner margin nearly straight; outer convex, surface granulate; fingers about two- 
thirds as long as palm, with a few teeth on prehensile margin. Left cheliped 
similar except for smaller size; fingers slenderer and longer than palm, edges 
subentire. 
The daetylus of the remaining legs is short, broad at base, and has a supple- FlG - 7 O.—Coralliocaris 
mentary spine. Telson one and two-thirds times as long as sixth segment, with trum^x^^ 8 ' *°* 
two pairs of longish lateral spines, and three pairs of terminal spines, of which 
the intermediate pair are half as long as the segment. 
Length 8.5 mm., carapace 3.5 mm. 
South coast of Molokai Island, 23 to 24 fathoms, station 2847, one specimen (Cat. No. 30553). 
Periclimenes pusillus, sp. nov. 
(PI. xxiv, fig. 7.) 
A small Periclimenes very close to P. parvus Borradaile , a but differing as follows: 
The rostrum is as long as, not shorter than, the carapace; its upper outline is ascending before 
descending; dental formula, in the four specimens, § instead of f . The carapace has a short antennal, 
but no hepatic spine. The second pair of feet overreach the antennal scale by the length of the propo- 
dite, as in the figure of P. parvus. The dactyli of the third to fifth pairs are shorter and uniungui- 
culate. Otherwise the description of P. parvus applies to this species. 
Four specimens, each about 9 mm. long, from south coast of Oahu, surface, 
station 3921 (Cat. No. 30554). 
Periclimenes, sp. 
Distribution. — South coast of Molokai Island, 23 to 24 fathoms, station 3847; 
fjudcuud, iuB- 
trum, x 12 . vicinity of Kauai Island, 68 to 179 fathoms, station 4128. 
Two specimens lacking rostrum and feet of second pair do not agree en- 
tirely with any species described, but come nearest to P. ensifrons (Dana), from which they differ 
chiefly in the greater length of the feet of the first pair, which in the smaller example exceed the 
antennal scale by the length of the chela and half the carpus, in the larger example by length of chela 
and nearly whole of carpus. Length of larger specimen, station 3847, without rostrum, 10.5 mm. 
Family OPLOPHORIDtE. 
Oplophorus gracilirostris A. Milne Edwards. 
Oplophorus gracilirostris A. Milne Edwards, Ann. Sci. Nat., Zool. (6), XI, 1881, Art. 4, p. 6; 
Recueil Planches Exped. “Travailleur,” pi. xxx, 1883. 
Hoplophorus gracilirostris Alcock, Desc. Cat. Indian Deep-Sea Crust. Dec. Macr. Anom., 73, 1901, 
and synonymy. 
Distribution. — Kaiwi Channel, 295 to 433 fathoms, stations 3470, 3472, 4105, and 4113; south coast 
of Oahu Island, 228 to 322 fathoms, stations 3815, 3908, 3909, 3914, 3918, and 3920; south coast of 
Molokai Island, 222 to 498 fathoms, station 3824; Pailolo Channel, 256 to 284 fathoms, stations 3865 
and 3899; vicinity of Kauai Island, 257 to 326 fathoms, stations 3990, 4130, and 4131; northeast 
approach to Pailolo Channel, 306 to 308 fathoms, station 4092; northwest coast of Oahu Island, 282 to 
253 fathoms, station 4117. 
Color. — Bright carmine pink. 
“Ann. Mag. Nat. Hist. (7), II, 1898, 384; Willey, Zool. Results New Britain, etc., Pt. IV, 407, pi. xxxvi, figs. 3o-3c, 1900. 
Fig. 71 . — Periclimenes 
