282 University of California Publications in Zoology | (Vou. 28 
at or south of the Aleutian Islands; only nine (15%), Spironto- 
caris prionota,° S. flexa,°* Crago communis, Haplogaster grebmitzku,° 
Pagurus beringanus,° P. hirsutiusculus, Oregonia gracilis,° Chion- 
oecetes tanneri,* Telmessus cheiragonus,? go beyond into the Bering 
Sea, while none of the remaining seventeen (29%) are known to occur 
north of British Columbia, in fact, the ranges of six of these, Spironto- 
caris decora, S. kincaidi, Crago munitella, Callianassa gigas,°* Pachy- 
cheles pubescens,°* Pinnixa tubicola, end in Puget Sound or the Straits 
of San Juan de Fuea. Another, Crago spinosissima, does not go north 
of Oregon, and only ten, Spirontocaris layi,° §. paludicola, Crago 
alaskensis elongata, C. alba, Lopholithodes foraminatus,* Paguristes 
turgidus, Pagurus hemphillii,° Pylopagurus minimus, Pugettia richii, 
Pinnotheres concharum, run up into British Columbia. The thirty- 
three species ranging northward, whose northern limits are found 
along the Alaskan coast, at or south of the Aleutian Islands, are: 
Pandalus jordani 
Pandalus platyceros* 
Pandalus danae° 
Hippolyte californiensis 
Spirontocaris lamellicornis?® 
Spirontocaris bispinosa* 
Spirontocaris gracilis 
Spirontocaris brevirostris° 
Spirontocaris cristata 
Crago stylirostris 
Crago franciscorum 
Crago acclivis 
Crago munita 
Paracrangon echinata 
Callianassa californiensis* 
Hapalogaster cavicauda 
Oedignathus inermis° 
Acantholithodes hispidus° 
Phyllolithodes papillosus° 
Cryptolithodes typicus° 
Cryptolithodes sitchensis° 
Lopholithodes mandtii°* 
Rhinolithodes wosnessenskit 
Munida quadrispina 
Puaettia gracilis* 
Chorilia longipes* 
Scyra acutifrons* 
Fabia subquadrata 
Pinnixa littoralis 
Pinnixa faba 
° 
Pagurus ochotensis Pinnixa schmitti° 
Parapagurus mertensit 
explanations, they have, for the purposes of discussion, been accepted as unques- 
tioned. These seven species with their ranges, including both doubtful and present 
known northern limits (in parentheses), are: 
Pagurus californiensis, Monterey Bay? (Santa Catalina Island)—Gulf of Cali- 
fornia. 
Panulirus interruptus, Monterey Bay? (San Luis Obispo)—Rosalia Bay, Lower 
California. 
Cyclodorippe plana, Monterey Bay? (San Pedro Bay)—Santa Catalina Island. 
Anasimus spinosus, Monterey Bay? (San Pedro Bay)—Cerros Island, Lower 
California. 
Epialtus bituberculatus, Monterey Bay? (Laguna Beach)—Chile. 
Portunus xantusii, Puget Sound? (Santa Monica Bay)-—Chile. 
Ocypode gaudichaudii*, San Francisco Bay? (Lower California)—Chile. 
Three new species, Dardanus jordani, Pylopagurus holmesi, and Homola faxoni, 
have been added to this paper since this section on ‘‘Distribution’’ was written. 
Had they been included here the total number of species of littoral record would 
have been one hundred and eighty-four. 
