PART 1 garth: pacific oxyrhyncha 17 



Boreal Pacific species occurring on both Asiatic and North American 

 coasts : 



Oregonia gracilis Dana 

 Chionoecetes opilio (O. Fabricius) 

 Hyas coarctatus Leach 



Austral species occurring on both Pacific and Atlantic coasts of 

 South America: 



Eurypodius latreillei Guerin 



Leurocyclus tuberculosus (Milne Edwards and Lucas) 



Libidoclaea granaria Milne Edwards and Lucas 



Tropical American species occurring regularly and in equal abund- 

 ance on both sides of the Isthmus of Panama: 



Inachoides laevis Stimpson 

 Acanthonyx petiveri Milne Edwards 



Pacific American species reported as occurring in the Atlantic on 

 the strength of a single record: (The Atlantic record is here considered 

 extralimital.) 



Taliepus marginatus (Bell) Brazil 



Notolopas lamellatus Stimpson Beaufort, N. C. 



Libinia rostrata Bell Brazil 



Microphrys weddelli Milne Edwards Guadaloupe 



Atlantic American species reported as occurring in the Pacific on 

 the strength of a single record: (The Pacific record is here considered 

 extralimital.) 



Leucippa pentagona Milne Edwards Magdalena Bay 



Epialtus bituberculatus Milne Edwards Chile 

 Libinia emarginata Leach San Francisco 



