1921 J Schmitt: The Marine Decapod Crustacea of California 131 



Biological Survey of San Francisco Bay. — Pagurus ochotetisis is 

 the most abundant and widely distributed of the hermit crabs occur- 

 ring outside of the bay. It was taken at eight (D 5785-5787, 5789- 

 5792, 5806) of the seventeen outside stations. These represent eight 

 of the nine outside stations which were made seaward of the San Fran- 

 cisco bar, that is to say, all stations outside the bar at which the depth 

 did not exceed 46 fathoms. At the station of least depth, D 5806, 13 



Fig. 84. Pagurus oclwtensis, natural size (after Benedict, U. S. N. M.). 



to 14 fathoms, only two specimens were obtained ; at the other stations, 

 which were made in 19 or more fathoms, from eight to forty specimens 

 were taken. The bottom, except at D 5790 and D 5791, was "very fine 

 green sand" ("grey" at D 5806); at D 5790 it was rather "very 

 coarse variegated sand with small proportion of fine sand," while at 

 D 5791 very little bottom material other than ' ' refuse and garbage ' ' 

 was indicated. Except as noted above (D 5806), D 5791 with its 

 ' ' refuse and garbage ' ' bottom returned the least number of specimens, 

 viz., eight, thirteen in one case and twenty or more in each of the 



