descriptions of a new genus and forty-six new 

 spp:cies of crusta(jeans of the family GALA- 

 theid.e, with a list of the known marine 



SPECIES. 



By James E. Benedict, 



Assistant Curator of Marine Invertebrates. 



The collection of Galatheids in the United States National Museum, 

 upon which this paper is based, began with the first dredgings of the 

 U. S. Fish Commission steamer Albatross in 1883, and has grown 

 as that busy ship has had opportunit}' to dredge. 



During the first period of its work many of the species taken were 

 identical with those found by the U. S. Coast Survey steamer JBlake, 

 afterwards described by A. Milne-Edwards, and in addition several 

 new species were collected. During the voyage of the Albatross to 

 the Pacific Ocean through the Straits of Magellan interesting addi- 

 tions were made to the collection. Since then the greater part of the 

 time spent by the Albatross at sea has been in Alaskan waters, where 

 Galatheids do not seem to abound. However, occasional cruises else- 

 where have greatly enriched the collection, notably three — one in the 

 Gulf of California, one to the Galapagos Islands, and one to the coast 

 of Japan and southward. 



The U. S. National Museum has received a number of specimens 

 from the Museum of Natural History, Paris, and also from the Indian 

 Museum, Calcutta. 



The literature of the deep-sea Galatheidie from the nature of the case 

 is not greatly scattered. The first considerate number of species were 

 described by A. Milne-Edwards from dredgings made by the Blake in 

 the West Indian region. Prof. S. I. Smith then described some 

 interesting forms from the U. S. Fish Commission dredgings ofi:' the 

 east coast of the United States. This was followed by the report 

 of the Anomura of the voyage of the Challenc/er, by Prof. J. R. Hen- 

 derson, which contained descriptions of many species of Galatheids 

 from widely separated localities. In 1893 Dr. Faxon published pre- 

 liminary descriptions of 24 new species from the Albat7'0ss expedition 



Proceedings U. S. National Museum, Vol. XXVI— No. 1311. 



2-13 



