BRACHYURA AND MACRURA OF HAWAIIAN ISLANDS. 
883 
Micippa parca Alcock. 
Micippa mcirgaritifera var. parca Alcock, Jour. Asiat. Soc. Bengal, LXIV, 1895, 253; Illus. Zool. 
Investigator, Pt. VI, pi. xxxv, fig. 4, 1898. 
Micippa pgrca Borradaile, Fauna and Geogr. Maidive and Laccadive Arch., II, 1903, 689. 
Distribution. — French Frigate Shoal, 14J to 171 fathoms, stations 3968, 3970, and 3971; vicinity of 
Modu Manu, 23 to 26 fathoms, station 4146. 
In our specimens the superior fissures of the orbit are more V-shaped than in the figure cited, the 
outer margin of the hepatic region more pronouncedly spinulous, the lower part of the front broader, 
being twice as wide as its height below the attachment of the basal joint of the antenna. 
Family PARTHENOPID^. 
Parthenope ( Platylambrus ) nummifera, sp. nov. 
(PI. xiv, fig. 4.) 
Surface pubescent. Widest part of carapace in line with the anterior margin of the cardiac region. 
A hollow at the posterior corners of the mesogastric region and another between hepatic and branchial 
regions. Surface covered, but not closely, with tubercles of variable size which are somewhat mush- 
roomlike, the stalks very short and thick, tops very finely and densely granulate; intermediate space 
more sparingly granulate; of these tubercles the largest are one median gastric, one median cardiac, a 
cluster on the anterior elevated portion of the branchial regions. Spines of surface granulated, blunt, 
not long, disposed as follows: One at rear end of the branchial region, one median at rear end of car- 
diac region; one marginal hepatic, a row of about six on the antero-lateral margin of the branchial 
region of which the posterior is the larger; between it and the dorsal branchial spine a row of two or 
three small but elevated tubercles; a spine on postero-lateral margin at end of broad depression which 
separates cardiac from elevated part of branchial region; from this spine a row of tubercles running 
along the depression. A row of small tubercles on posterior margin, the end one largest. 
Beak small, prominent, trifid; upper margin of antennulary cavities spinulous. Upper orbital 
border very thick, a large forward-projecting tubercle; edge crenulate. 
Chelipeds of male 3f , of female 2f times as long as carapace, covered with tubercles like those of 
the carapace, margins armed with very short stout spines or pointed tubercles, arms bluntly angular. 
In both sexes, the hands are notably unequal in stoutness, the fingers of the larger one widely gaping. 
Legs very slender, armed with small stout spines. 
Dimensions. — Male type, length 15.2, width 16.7, length of larger cheliped 55.5 mm. 
Distribution. — South coast of Oahu Island, 51 to 238 fathoms, stations 3809 and 3811; south coast 
of Molokai Island, 23 to 212 fathoms, stations 3838, 3845, 3846, and 3847; north coast of Molokai 
Island, 66 to 96 fathoms, station 3906; vicinity of Kauai Island, 50 to 296 fathoms, stations 3987 and 
3991; northeast coast of Hawaii Island, 63 to 113 fathoms, stations 4062 (type locality) and 4064; 
Aleunihana Channel, 49 to 176 fathoms, station 4066; vicinity of Modu Manu, 71 to 160 fathoms, 
station 4150. Cat. No. of type, 29826. 
Variations. — The single specimen from station 3811 is a well-marked variety. All the spines are 
sharper and more prominent than in the typical form, and in place of the larger tubercles on the 
carapace of the latter there are sharp-pointed spines, as one on summit of gastric, of cardiac and of 
branchial regions. 
In many examples the tubercles of the branchial elevation are more or less run together, forming 
large blister-like patches. 
Near P. (P.) echinata (Herbst)“ (pi. xv, fig. 8) of which a specimen from the Orissa coast has 
been kindly sent me by Major Alcock. Our species is smaller and narrower, genital region depressed, 
interspaces between elevations more granulated, chelipeds and legs longer, lower margin of distal end 
of larger cheliped convex. In P. echinata the median spine on the genital region is as elevated as the 
two on the gastric and cardiac regions. 
Also very nearly related toP. verrucosa (Studer) (Abh. K. Akad. Wiss. Berlin, 1882, 9, pi. i, fig. 2 
a-b, 1883) which has fewer and larger tubercles on carapace and chelipeds, and less flattened and 
smoother legs. 
a See Lambrus ( Platylambrus ) echinatus Alcock, Jour. Asiat. Soc. Bengal, LXIV, 1895, 264, and synonymy. 
