890 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
Length of ovigerous female 4.3 mm., width 5.2 mm. These specimens are much smaller than the 
type and the tubercles much less prominent, especially those of postero-lateral margin. 
Hawaiian Islands, A. Garrett,, in Museum of Comparative Zoology; determined by W. Faxon. 
Hawaiian Islands (Dana) . 
Randallia distincta Rathbun. 
(PI. xvi, figs. 2 and 3.) 
Randallia distincta Rathbun, Proc. U. S. Nat. Mus. , XVI, 1893, 257. 
A large number of specimens were taken by the Albatross in 1902, but 
most of them were immature. The few large specimens show somewhat 
different characters from those possessed by the type, an immature female. 
Carapace of adult slightly longer than broad in male; slightly broader 
than long in female. Granules in male more elevated, but scarcely larger 
posteriorly than anteriorly; in female larger posteriorly than anteriorly. 
An ill-defined line of somewhat larger granules marks the lateral margin 
along- the anterior half of the branchial region, but there are no projecting 
tubercules, as seen in the half-grown individuals. Posterior margin trun- 
cate, without the teeth which exist in the young; no spine on intestinal 
region; only a low tubercle. Pterygostomian region with rounded margin without tubercle. 
Chelipeds in male two and a third times as long as carapace; in female slightly more than twice 
as long as carapace. 
Abdomen of male narrow-triangular, granulous at base, a broad tubercle at end of penultimate 
segment, and two lower tubercles at end of the antepenultimate. Terminal segment almost linear. 
Terminal segment in female triangular with concave sides. 
Dimensions. — Male, station 4044, length 43, width 41.5 mm.; female, station 4079, length 39.6, 
width 40 mm. 
The smallest specimen with a tubercle on the intestinal region is ah immature female, station 4115, 
29.5 mm. long, while the largest specimen with a spine is also a female, station 4082, 32.2 mm. long. 
Both present two low blunt posterior teeth, and rudimentary tubercles on the branchial margin. In 
none of the examples of intermediate size is the intestinal spine partially developed; when present at 
all it is a strong recurved spine. 
Distribution . — South coast of Oahu Island, 183 to 295 fathoms, stations 3813, 3818, and 3920; north- 
west coast of Oahu Island, 195 to 282 fathoms, stations 4115, 
4116, 4117; southwest coast of Oahu Island, 192 to 352 
fathoms, station 4122; south coast of Molokai Island, 238 to 
266 fathoms, stations 3836 and 3839; Pailolo Channel, 256 
to 284 fathoms, stations 3865 and 3883; vicinity of Kauai 
Island, 235 to 228 fathoms, station 3998; west coast of 
Hawaii Island, 233 to 198 fathoms, station 4044; north coast 
of Maui Island, 143 to 238 fathoms, stations 4079 and 4082. 
Randallia gilberti, sp. nov. 
(PI. xvi, fig. 4.) 
Carapace about as broad as long; surface granulous, 
granules irregular, smallest on the lobules and on the 
fronto-orbital region. Anterior half of carapace lobulate. 
Median carina interrupted by two lobules; on either side 
five other lobules, three of which are gastric, forming a 
triangle, and two hepatic. Visible angle of pterygostomian 
region broadly triangular; marginal sinus between hepatic and branchial regions slight; a few low 
tubercles on the antero-lateral portion of the latter. Intestinal region swollen, rising to a point in the 
middle, unarmed. Posterior margin with two lobes separated by a broad sinus. Front with broad 
shallow emargination. 
Fig. 45 .— Randallia gilberti. a, Type female, 
X If. 5, Abdomen of male, station 4062, x 4. 
c, Chela of type female, x 4§. 
Fig. ii.— Randallia distincta, 
station 4079, x f. a, Abdo- 
men of female. 6, Abdomen 
of male. 
