SCIENTIFIC RESULTS OF EXPLORATIONS BY THE U. S. FISH COM- 

 MISSION STEAMER ALBATROSS. 



[I'lilili.slied l)y iKi-iiiinsioii of Jlcm. ^rarsliall Mi^Uonald, Coiiiiiiissiout^i- of Fi.slitirie.s.] 



No. XXIV.— DK.SCRII'TIONS OF NKW GENERA AND SPEIUES OF CRAH.S 

 FROM THE WEST COAST OF NORTH AMERICA AND THE SANDWICH 

 ISLANDS, 



BY 

 Maky j. Rath BUN. 



Departniciil of Marine Inverlchrates. 



Of tlic iie\v loiiiis described in the lollowiiig pages, the Sandwich 

 Island legion is represented by seven s]>eeies; of the Avest American 

 forms all bnt two are fonnd in sonthern California or Lowei' California, 

 inclnding the Gnlf coast. In all six genera and forty-six si)ecies are 

 described, of which fonr genera, and forty s[)ecies were colh'cted by the 

 U.S. Fish (3<»iniiiission steamer ^LZ/yrt^ross; of these forty species, seven 

 had been ])revionsly collected by other parties, bnt had not been de- 

 rcribe<l. In the Proceedings of the Musenm for 1S91, 181)2, and 1803 

 have been described seven new si>ecies of Fanopens, Periceridie and 

 JNraiidibfrom recent Albatross dredgings, making a total of forty seven 

 new species of brachynran crnstaceans collected by that vessel between 

 Jnly 1, 1888, and Decendjcr 31, 1801. From this calcnlation are 

 omitted the resnlts of the crnise to the Galapagos Islands in the spring 

 of 1801. 



Family INACH 11 >.F.. 

 Subfamily Leptopodiin^. 



Gemis ERICERUS. 



Carapace much elevated at the cardiac region. Rostrum long and 

 simple. Postocular spine present. Abdomen of male six segmented, 

 the penultimate and terminal segments coalesced. On the sternum, 

 in front of the abdomen, there are two spines pointing doAvnward and 

 forward, and situated on either side of the median line. The tiagellum 

 and a portion of the basal joint of the antenna are visible at the sides 

 of the rostrum. Merus of the external maxillipeds with the inner 



Proceedings National Museum, Vol. XVI— No. 933. 



223 



