BKACHYURA AND MACRURA OF THE HAWAIIAN ISLANDS. 
869 
Lissocarcinus lsevis Miers. 
Lissocarcinus Ixvis Miers, Challenger Kept., Brachyura, 205, pi. xvir, fig. 3, 1886. Alcock, Jour. 
Aaiat. Soc. Bengal, LXVIII, 1899, 21. 
Northeast coast of Hawaii Island, 77 to 75 fathoms, station 4057, 1 male. 
The two truncate lobes of the front have a sinus a little deeper than in Miers’s figure, while the 
inner angle of the orbit is not so projecting, more rectangular. Surface under the lens finely granular. 
On the branchial region one can trace a transverse crest running to the last 
side tooth, which is more slender than figured, while the other teeth are more 
dentiform. 
Dimensions. — Male, length 6, width 7.3 mm. 
Lupocyclus quinquedentatus, sp. nov. 
(PI. xii, fig. 7.) 
Carapace three-fourths as long as wide; hirsute, except on transverse 
granulated ridges. Ridge connecting teeth of posterior pair interrupted either 
side of gastric region; in front of it, two gastric ridges, the posterior con- 
tinuous, the anterior widely interrupted at the middle; behind it a cardiac 
ridge and on each side three short branchial ridges, the second one of which is interrupted near its 
inner end. A short post-cardiac ridge; also clusters of granules near the second, third, and fourth 
antero-lateral teeth, and four clusters more or less distinct on the frontal region. 
Front advanced, six-toothed including orbital angle; teeth triangular, acute, middle pair stoutest 
and most advanced and' separated by the most acute sinus; submedian pair smallest, may be a little 
more or less advanced than the outer pair. Two supra-orbital fissures. 
Fiv.e subequal antero-lateral teeth, sharp-pointed, including the orbital, 
which is the stoutest, while the last is the most spiniform. A rudimentary 
tooth in each of the first three sinuses. A curved line joins the posterior and 
postero-lateral margins. 
Outer suborbital fissure V-shaped; inner angle spiniform, much less ad- 
vanced than upper angle. Outer lobe of basal antennal joint narrow, occupy- 
ing only half the width of the orbital hiatus. 
Chelipeds nearly two and one-half times as long as carapace in male, two 
and one-sixth times in female; merus very stout with three (occasionally four) 
large spines on inner margin and a small one at distal end of each margin. 
Small spine at distal inner end of ischium. Wrist with an inner and two 
outer subdistal spines. Hand subcylindrical, with three large spines — i. e , 
the customary one near the wrist, and two at the middle on each side of upper 
surface; in addition there is on the smaller chela only a small spine on outer distal end, overlapping 
the dactylus. Fingers slender, longer than palm. 
Merus of the natatory feet twice as long as broad, armed with two spines on posterior border, one 
larger subdistal, one smaller distal. Greater part of posterior margin of propodus armed with small 
stout denticles. Midrib of dactylus terminating in a spine. 
Surface of chelipeds and legs traversed by longitudinal grooves, interspaces for the most part 
crossed by transverse granulated rugae. 
Abdomen of male broad except for terminal segment, the penult being more than twice as wide as iong. 
Dimensions. — Male, station 4034, length to median sinus 26.5, width 36.2, fronto-orbital width 22.6; 
female, station 3876, length to median sinus 27.8, width 37.6, fronto-orbital width 23.9. 
Distribution. — South coast of Molokai Island, 23 to 24 fathoms, station 3847; Auau Channel, 28 to 
43 fathoms, station 3876; Penguin Bank, south coast of Oahu, 14 to 28 fathoms, stations 4031, 4034 
(type locality); northeast coast of Hawaii Island, 24 to 83 fathoms, stations 4054, 4061; vicinity of 
Modu Manu, 31 to 56 fathoms, stations 4160, 4164. Cat. No. of type, 29669. 
Color. — According to a note by the collector, the type male is “translucent yellowish, heavily 
mottled with vermilion. Dorsum of carapace nearly clear red, ventral side whitish.” 
This species differs from L. rotundatus Adams & White in the greater prominence of the inner 
orbital angles, fewer lateral teeth and arm spines, and more numerous lines on the carapace. 
Fig. 28 . — Lupocyclus quin- 
quedentatus, abdomen 
of type male, x If. 
Fig. 27 .— Lissocarcinus 
lsevis, station 4057, abdo- 
men of male' x 6§. 
