X. EXPLANATION OF PLATES 
All specimens figured are contained in the collections of the United States 
National Museum, except Pinnixa barnharti, male (pl. 41, figs. 1 and 4), which 
is in the Museum of Comparative Zoology at Cambridge, Massachusetts. Only 
where suitable California material of a particular species was unobtainable has 
that from other localities been utilized for photographing. Unless otherwise 
stated all localities are Californian, and before the numbers designating the 
‘¢ Albatross’? stations D, signifying dredging, is to be understood. 
Page references to the text are given below under the names of the species 
figured on the plates. 
PLATE 1 
CoAST OF CALIFORNIA 
A. Northern boundary of the state of California to San Francisco. 
B. San Francisco to Point Conception. 
C. Point Conception to southern boundary of the state of California. 
The 100-fathom line is represented by the dotted line (...... ); the 30-fathom 
line by dots) and dashes s(s ae 
Each degree of latitude equals 60 nautical miles (one nautical mile equals 
6086.7 feet, or 1.15 statute miles). 
These outline maps are based on the U. 8S. Coast and Geodetic Survey’s Chart 
No. 5200. 
[360] 
