1921] Schmitt: The Marine Decapod Crustacea of California 11 



drawings, are the work of my wife, Alvina S. Schmitt. The photo- 

 graphs, from which all plates not otherwise credited were made, are 

 the work of Mr. John Howard Paine. 



Although no bibliography in the strict sense has been attempted, 

 the literature listed includes not only works cited in the text, but 

 also a number of useful papers collaterally consulted. In the con- 

 densed synonymy under each species, in addition to the citation of 

 the original description, reference is made to all authors from whose 

 works plates, figures, or extracts have been taken, and, wherever 

 possible, to the three most recent and comprehensive works on Cali- 

 fornia Crustacea, a very able paper by Weymouth (1910) on the crabs 

 of Monterey Bay, and those landmarks, as it were, of California 

 carcinology by Holmes (1900) and Rathbun (1904a). 



From Weymouth I have taken many valuable color notes, several 

 figures, and the greater part of his keys to the adult and juvenile 

 specimens of the genus Cancer and the genera of the family Inachidae. 



To the works of Holmes and Rathbun, however, my greatest debt 

 of gratitude is due, for it is largely from them, as the reader will 

 readily see, that the present paper has been compiled. The very 

 comprehensive descriptions of Holmes have been freely drawn upon 

 for many of the specific characterizations, as well as for the con- 

 struction of several otherwise impossible keys for species I have not 

 seen or was unable to examine. His excellent illustrations, for the 

 greater part, have been reproduced. 



In form and systematic arrangement I follow Miss Rathbun in 

 the main, and from her monograph (1904a) the keys and characters 

 for the species of Pasiphaea, Pandalus, Spirontocaris, Crago, and 

 Callianassa have been taken practically intact. Her classificatory keys 

 published in the American Naturalist (1900) were found very useful, 

 especially in connection with the genera of the Inachidae and the 

 Xanthidae. From her recent monograph on the Grapsoid Crabs of 

 America (1918) considerable material relating to the family Pinno- 

 theridae has been taken and a number of plates have been reproduced 

 (plates 40 to 50 of the present paper). 



Furthermore, to Miss Rathbun personally I owe much for numer- 

 ous helpful and valuable suggestions, and for the use of certain of 

 her manuscript notes, particularly those dealing with the genera 

 Randallia and Pinnixa. 



Acknowledgments are also due to Alcock, Bouvier, Borradaile, 

 Caiman, Ortmann, Smith and Weldon, from whose treatises the 



