1921] Schmitt: The Marine Decapod Crustacea of California 323 
WAQUIS” JUBA DNEDIDC ING AN 
List or SPECIES TAKEN AT ‘‘ ALBATROSS’’ DREDGING STATIONS DURING THE YEARS 
1912 anv 1913 
Only such data are reproduced here as have been used in the discussion of the 
distribution of the species listed. All other dredging data are to be found in 
the Report on the Physical Conditions in San Francisco Bay (Sumner, 1914). 
Unless obtained at more than three stations the species and number of speci- 
mens taken at the various stations are entered in the column of ‘‘ Addenda.’’ 
Cancer antennarius is the only exception to this rule. 
Fifty or more specimens are represented by the letter ‘‘m’’ (many). The 
actual count of lesser numbers is given in full. 
The positions of these stations are plotted on plates 2 and 3, and in order 
that they might be readily located they are referred to the ‘‘upper,’’ ‘‘middle’’ 
or ‘‘lower’’ regions of the bay or to the region ‘‘outside.’’ 
The ‘‘upper’’ bay is taken as the section lying north of a line connecting 
Point San Pedro and Point San Pablo, including the region usually designated 
as San Pablo Bay. The ‘‘middle’’ bay extends from this line to one drawn from 
the San Francisco Ferry Building through the Goat Island Light, and separating 
it from the ‘‘lower’’ bay, the section below this latter line. The ‘‘middle’’ bay 
is separated from the region ‘‘outside’’ by a line passing from the Bonita Point 
Light through Mile Rock to the San Francisco shore. 
As a rule hydrographic observations were not made in the course of dredging 
operations, and in order that such data obtained at the regular hydrographic 
stations might be used in connection with the dredging stations a table correlating 
the two has been drawn up as Appendix III (p. 354) of this report. 
