THE BRACHYURA AND MACRURA OF THE HAWAIIAN ISLANDS. 
By MARY J. RATH BUN. 
Relatively little has been published hitherto on the decapod fauna of the Hawaiian 
Islands, the collecting’ done by the earlier expeditions being limited usually to a few 
days. The number of species and subspecies of Brachyura and Macrura known up 
to the present time was 109; in this paper that number is increased to 314.“ Of 
these the majority (245 species) have been obtained by the U. S. Fish Commission. 
A few derived from other sources are contained in the National Museum collection, 
and 26 have been added by examination of the Brachyura in the Museum of Compar- 
ative Zoology, a privilege granted to the author by Dr. Walter Faxon, who had 
previously made the determinations. Twentjr-eight other species are attributed to 
the islands in various publications, but the present writer had no means of verifying 
these records. 6 
The Fish Commission explorations began in 1891, in connection with the cable 
survey between California and the Hawaiian Islands, when ten hauls of the trawl and 
tangles were made, mostly between 300 and 375 fathoms. The results were meager 
compared with those realized by the three months’ systematic exploration by a land 
party in 1901 under the leadership of Dr. D. S. Jordan and Dr. B. W. Evermann and 
by the Albatross in 1902. c This vessel occupied 397 stations in the vicinity of the 
islands, while field parties, led by Dr. Charles H. Gilbert, explored the shores and 
reefs as well as the fresh- water streams. Mr. Walter K. Fisher, of Stanford Uni- 
versity, has given added value to the specimens by notes on their habits, color, etc. 
Mr. Henry W. Henshaw, for many years a resident of Hilo, has from time to 
time sent Crustacea to the National Museum, and has added several species to this 
list. Other contributors are the late Valdemar Knudsen, a wealthy planter of the 
island of Kauai who was much interested in natural history, and Mr. R. C. 
McGregor, of the IT. S. Coast and Geodetic Survey. 
The Hawaiian crabs at the Museum of Comparative Zoology were taken nearly 
half a century ago by Mr. Andrew Garrett and Mr. Horace Maun, both zealous 
a The Hawaiian Crangonidse (=Alpheidse) have been assigned to Dr. H. Couti&re, of the Ecole Supgrieure de Phar- 
maeie, Paris; the Anomura to Dr. James E. Benedict, of the U. S. National Museum. 
i> Some of these species have not since been collected, or are known only from description and figure, the type specimen 
having been destroyed, as Galene hawaiiensis Dana. A few species it is almost certain have been erroneously recorded 
from the Hawaiian Islands, as Trichodaetylus punctatus Eydoux and Souleyet, which is a South American fluviatile crab, 
and Paehygrapsus crassipes Randall, one of several forms collected by Nuttall and Townsend and confused with others 
taken on the California coast. The occurrence of Ocypode gaudichaudii at Honolulu needs confirmation. 
c a single dredging often embraced a long period of time and a great range of depth, therefore the statement that a 
species was taken at'68-179 fathoms does not indicate its actual range, but simply its occurrence at some point between 
those depths. 
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