874 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
The second form is rather rare on the reefs, and is characterized by a distinct crest on the cardiao 
region and in the same line a short and distinct crest on each branchial region; fourth lateral tooth 
well developed, but smaller than the others. The five crests of the hand are well developed and 
granulous, the granules diminishing in size from the third to the fifth crest; the terminal projections 
of the two upper crests may be acute or spinous; space between first and third crests coarsely granulous, 
which granulation may extend to the fourth crest. 
The third form inhabits deeper water and occurs in considerable numbers at some stations. All 
the crests are as strong as or even stronger than in form 2 ; the fourth tooth is rudimentary as in edwardsi; 
five crests of hand all well developed and granulous, the space as far down as the fourth crest coarsely 
granulous, some granulation just above the fifth crest, two spines in first row, three in second; lower 
surface of hand granulous, also a portion of inner surface. 
Distribution of T. edwardsi. — Honolulu, U. S. S. Tuscarora, Dr. W. H. Jones and IJ. S. Fish 
Commission; Honolulu Reef; Waikiki Beach; Oahu, Dr. T. H. Streets; Hanalei, Kauai, reef; Hilo; 
Maui, A. Garrett, in Museum of Comparative Zoology; Hawaiian Islands (Dana, Streets, as T. admete). 
The only variation from the typical edwardsi is noted in a female from Honolulu (Cat. No. 25379) 
in which the fourth tooth is better developed, and the hands tend toward the roughness of form No. 3. 
.There are in the National Museum no specimens from elsewhere than the Hawaiian Islands. 
The second form I have called T. admete (Herbst), because it seems to me that the specific name 
admete should be applied to a form in which the fourth side tooth is well developed. Herbst’s type 
of Cancer admete is not extant (cf. Hilgendorf, Monats. K. Akad. Wiss. Berlin, 1878, 799), therefore 
one must rely on his description and figure. 
Thalamita admete (Herbst). 
Cancer Admete Herbst, Hatur. d. Krabben u. Krebse, III, pt. 3, p. 40, pi. lvii, fig. 1, 1803. 
Herbst shows in his figure a fourth tooth of good size and moreover says “der vierte Zahn ist aber 
weit kleiner, als die ubrigen, mehr dornenartig, und hat das Ansehen, als sey er als ein junger 
zwischen den beyden grosseren hervorgewachsen.” 
Distribution. — Laysan, May 1902; Waiawa, Kanai Island, V. Knudsen, 1887. 
Specimens of the same are in the National Museum from Anamba Islands in the China Sea, Samoa, 
and Lord Howe Island. 
The description of T. savignyi A. Milne Edwards applies very well to these specimens except that 
the inner face of the hand is not granulous. 
While I may be mistaken in naming this form, I think that it is more nearly correct than the 
application of “ admete” made by Alcock (1899) and Borradaile (1902). 
Thalamita auauensis, sp. nov. 
(PI. xii, fig. 1.) 
The third form of the admete group described above is not found in Borradaile’s key (loc. cit. 1902), 
hence a new name is proposed. 
A different specific designation seems to be warranted Jor each form of the Hawaiian series and 
no striking intergradations are to be seen in the collection in the National Museum from other locali- 
ties, which, however, is very limited. 
Named for Auau Channel where this crab is the most plentiful. 
Distribution. — South coast of Molokai Island, 23 to 73 fathoms, stations 3847, 3849, 3850; Auau 
Channel, 13 to 43 fathoms, stations 3871, 3872, 3873, 3876 (type locality); northeast coast of Hawaii 
Island, 24 to 83 fathoms, station ,4061; vicinity of Kauai Island, 68 to 179 fathoms, station 4128; 
vicinity of Modu Manu, 26 to 183 fathoms, stations 3978, 4147, 4149, 4161, 4164. Cat. No. of type, 
29602. 
Thalamita spinifera Borradaile. 
Thalamita exetastica var. spinifera Borradaile, Fauna and Geog. Maidive and Laccadive Arch., I, 
203, 1902. 
The specimens agree with Borradaile’s description in having the chelipeds covered to a large 
extent with rounded granulations instead of squamee and the lower side almost smooth (that is, smooth 
