COMPLETE HAIG : EASTERN PACIFIC PORCELLANIDAE 3 



Source of Materials 



Allan Hancock Foundation: The major portion of the material on 

 which this study is based was derived from the cruises of the research 

 vessels Velero III and Velero IV under the command of Captain Allan 

 Hancock. Beginning in 1932 and continuing until 1941, the Velero III 

 obtained porcellanids in an area bounded on the north by San Miguel 

 Island and the California mainland near Santa Barbara, and on the 

 south by Bahia de San Juan, Peru, and including all the major offshore 

 island groups with the exception of Guadalupe and Clipperton. In addi- 

 tion to dredging operations from the ship, shore collecting, diving, and 

 cracking from coral heads all yielded specimens, with J. S. Garth, F. C. 

 Ziesenhenne, and W. L. Schmitt as principal collectors. Especially rich, 

 and undoubtedly the finest ever made in those areas, are collections 

 from the Gulf of California and the Galapagos Islands. 



The Velero IV, which began operations in 1948, has confined its 

 endeavors largely to dredging ofi southern California and the Santa 

 Barbara Islands, although three cruises were made to the west coast of 

 Baja California and one each to the Gulf of California, Isla Guadalupe, 

 and the southern Mexican mainland and offshore islands. 



The Northern Hemisphere cold-temperate region, in which the 

 Veleros have scarcely operated and from which they obtained no porcel- 

 lanids, is well represented by the contributions of individual collectors. 

 A few porcellanids were taken at Vancouver Island and at San Juan Is- 

 land, Washington, by G. E. and N. MacGinitie, and in Washington by 

 H. G. Coffin. In the summer of 1942, F. C. Ziesenhenne and C. Wade 

 made extensive collections in Oregon, an area from which the family has 

 never been reported in the literature. Within the last few years speci- 

 mens were obtained in Mendocino County, California, by W, K. Emer- 

 son and J. L, Barnard ; in Sonoma County by L. O. Miles and W. K. 

 Emerson ; in Sonoma and Marin Counties by R. J. Menzies ; in San 

 Mateo County by F. E. Christensen ; in Monterey County by J. L. 

 Barnard and J. Worden ; and in San Luis Obispo County by J. S. Garth 

 and J. L. Mohr. 



Supplementing the southern California Velero collections are speci- 

 mens taken in 1912 by the Anton Dohrn, research vessel of the Hancock 

 Foundation's predecessor, the Venice Marine Laboratory; specimens col- 

 lected in 1913 by J. R. Beck and P. S. Barnhart of the same institution; 

 and material contributed during the past twenty years by Hancock 

 Foundation field parties and by T. A. Burch, N. MacGinitie, E. Y. Daw- 



