176 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 18 



of species and genera described in the literature. A number of collections 

 were borrowed with the hope of monographing the family but the 

 press of other duties interrupted this ambition. However, the writer 

 was privileged to see enough material from other seas that he was 

 able to outline a revision of the family (J. L. Barnard 1958) and was 

 able to clarify a number of problems at the specific level, presented herein. 



ACKNOWLEDGMENTS 



To Dr. Olga Hartman I owe a debt of gratitude for her constant 

 attention and interest in this study, for supplying most of the materials, 

 and for her encouragement. 



To the following I am indebted for the donation of specimens: Dr. 

 John L. Mohr, Dr. Donald J. Reish, Dr. Thomas E. Bowman and 

 Dr. Francis P. Filice. In addition, Dr. Reish, Dr. Keith H. Woodwick 

 and Mr. Richard H. Linsley helped in collecting specimens at Newport 

 Bay and elsewhere. 



The following aided me in securing loans of material in other 

 museums: Dr. Fenner A. Chace, Jr., U.S. National Museum; Prof. 

 Dr. Karl Lang of the Swedish State Museum; Dr. E. L. Bousfield of 

 the Canadian Museum of Natural History; and Prof. E. Percival, 

 Canterbury College, Christchurch, New Zealand. 



Dr. Isabella Gordon of the British Museum of Natural History 

 examined and made notes for me on two species deposited in that 

 museum, for which I am most grateful. Dr. Keith Sheard, CSIRO 

 Division of Fisheries, Western Australia, very generously devoted a 

 considerable amount of time to examining type materials of three 

 Australian species. The following aided in other ways: Dr. D. E. 

 Hurley, while a Fulbright scholar at the Hancock Foundation in 

 1955, gave much encouragement and advice to me; Mrs. Dorothy 

 Halmos, Hancock Librarian and Editor, helped me in many ways to 

 delve into the literature of this group. 



During the first year of this study I was a Fellow at the Hancock 

 Foundation ; for the remaining six years it was a spare-time project 

 while I was an instructor at California State Polytechnic College, a 

 research scientist for the Department of Biology, University of 

 Southern California, a research investigator at the Hancock Foundation 

 and in private business. 



I am most indebted to Captain Allan Hancock for the use of 

 space and equipment in the Foundation. 



