1921] Schmitt: The Marine Decapod Crustacea of California 285 



Cancer amphioetusi Japan; Korea 



Cancer gibbosulus Japan 



Telmessus cheiragonus° Kamchatka; Siberia; Kurile Islands 



Pachygrapsus crassipes Japan; Korea 



Only four (2%) species, one of which has already been listed as 

 occurring in Japanese waters, are also recorded from the Atlantic 

 littoral regions, principally from the Bermudas, West Indies and the 

 Gulf of Mexico : 



Crangon dentipes* Bermudas, West Indies, Key West, 



Mediterranean, Cape Verde Islands. 



Processa canaliculataj North Carolina to Trinidad, Bermudas, 



West Indies, Gulf of Mexico; Europe 

 (also Japan and. Amboina). 



Epialtus bituberculatus Bermudas; Indian Eiver, Florida, to 



Brazil (also Chile). 



Pachygrapsus transversus'f Bermudas; Bahamas and Florida Keys 



to Bio de Janeiro, Brazil; West 

 Africa (also Oriental region and 

 Galapagos Islands). 



Of these the second and fourth are cosmopolitan with respect to their 

 distribution. 



Two species are pelagic, Pleuroncodes planipes and Planes minutus. 

 The first is known only from the Pacific shores of America ranging 

 "90 miles S.W. of San Francisco to 150 miles S.W. of Cape St. 

 Lucas"; while the second is a more or less cosmopolitan form found 

 in temperate and tropical seas throughout the world. The latter might 

 properly be included in both the preceding lists. 



Five (3%) species have a bathymetric range exceeding 500 

 fathoms, and even two of these have been taken in over 1000 fathoms, 

 as follows : 



Munida quadrispina° 50- 559 fathoms 



Munidopsis quadrata 47- 859 fathoms 



Munidopsis asperaj 69-1500 fathoms 



Chorilia longipes* 27- 603 fathoms 



Chionoecetes tanneri"* 29-1625 fathoms 



All of these are confined to the Pacific except Munidopsis aspera, 

 which has also been taken in the Atlantic off Brazil (type locality) 

 and which, except for its strictly abyssal record there, 1500 fathoms, 

 might well be included among the Atlantic forms above. It can, how- 

 ever, be called a cosmopolitan form for all primary abyssal forms as 

 a rule are cosmopolitan, or would prove to be more or less so were the 

 deep sea thoroughly explored. 



