PREFACE 



Professor William Albert Setchell of the Department of 

 Botany of the University of California. 



A fairly large collection of polychaetous annelids 

 was amassed, mostly from the open Pacific and Atlantic 

 oceans. The annelid fauna of our high seas is most im- 

 perfectly known; of the twenty-eight species examined, 

 fifteen, or more than half, are new. Professor Aaron L. 

 Treadwell of the Department of Zoology of Vassar Col- 

 lege made the examination of and report on these speci- 

 mens. 



A group of eighty-four specimens of Mysidacea were 

 taken mainly from the open tropical Atlantic and Pacific 

 oceans, away from land. Fifteen species, two of which 

 are new to science, were identified and reported on by 

 Dr. W. M. Tattersall of the Department of Zoology of 

 the University College of South Wales. 



Dr. Alexander Wetmore of the Smithsonian Institu- 

 tion of Washington identified the bird specimens and 

 distributed the specimens of isopods, echinoderms, and 

 lizard to J. O. Maloney, Austin H. Clark, and Miss Doris 

 M. Cochran, respectively. 



Fifty-seven specimens of insects and mites were 

 sent to Harold Morrison at the United States Bureau of 

 Entomology of the National Museum. Identifications 



were made by various investigators as noted under Mis- 

 cellaneous Determinations. The examination of the 

 Halobates was undertaken by Harry G. Barber of the 

 United States Department of Agriculture. 



The collection of Pyrosomidae contained but eight 

 specimens, and these, with one exception, were too im- 

 mature for identification as to species. Notes on the 

 state of development, dimensions, etc., have been sub- 

 mitted by Dr. Hoyt S. Hopkins of the New York Univer- 

 sity; these will be of service to investigators interested 

 in following up the development of the colony in Pyro- 

 soma. 



Among the collections of the Carnegie was one spec- 

 imen of sponge found on the reef at Apia, Samoa, in 

 April 1929, which has been identified as either Haliclona 

 cinerea (Grant) new combination or Reniera cinerea 

 (Grant) Schmidt by Dr. M. W. de Laubenfels. 



The present volume is the sixth in the series "Sci- 

 entific results of cruise VII of the Carnegie during 1928- 

 1929 under command of Captain J. P. Ault." It is the 

 fourth one devoted to Biological Reports. 



J. A. Fleming 

 Director, Department of Terrestrial Magnetism 



