X. EXPLANATION OF PLATES 



All specimens figured are contained in the collections of the United States 

 National Museum, except Pinnixa harnharti, male (pi. 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 (. . . ) . 



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 S. Coast and Geodetic Survey's Chart. 

 No. 5200. 



[360] 



