THE CEPHALOPODA OF THE HAWAIIAN ISLANDS. 
By S. STILLMAN BERRY. 
INTRODUCTION. 
The ensuing monograph was originally projected as a report on the collection of 
cephalopod mollusks taken by the United States Bureau of Fisheries steamer Albatross 
during her Hawaiian cruise of 1902. It was found, however, that the pages required 
to be only slightly amplified to become practically a monographic survey of the entire 
Hawaiian region, and this has accordingly been done. Wherever possible a full descrip- 
tion is given from Hawaiian material of each species under consideration. This is 
succeeded by a brief discussion of the further range of the species, tables of dimensions, 
a short critical comparison with other nearly allied forms, and such other items as 
seemed relevant. In some cases, especially where a species has been known to the 
writer only through the descriptions of other authors, it has been thought well to reprint 
the diagnosis of the original author in full. The work was commenced at Stanford 
University in the autumn of 1908, and, with the exception of the season of 1909-10, 
was prosecuted more or less continuously in the zoological laboratories there from that 
time to November, 1912. ® 
SOURCES OF MATERIAL. 
The great bulk of the material upon which this report is based is the property of 
the United States Bureau of Fisheries and was obtained during the explorations of the 
United States Fisheries steamer Albatross on her extensive investigation in 1902 of 
the waters adjacent to the Hawaiian Islands, which constitute, zoologically speaking, 
what is known as the Hawaiian region. The principal part of the specimens have been 
turned over to the United States National Museum, but a set of the duplicates is 
deposited in the Stanford University collections. 
I have further had for study the small series of shore forms already in the collections 
of Stanford University, most of them obtained by Dr. O. P. Jenkins during his visit to 
the islands in 1889, or by Dr. D. S. Jordan and Dr. B. W. Evermann in 1901. These 
a As on a former occasion, I must express my gratitude to Dr. Walter Kenrick Fisher, of Stanford University, for the kindly 
interest with which he has constantly followed the progress of this work in his laboratory. It is of interest to note, also, that Dr. 
Fisher was a member of the Albatross staff during the Hawaiian explorations, and the occasional color and habit notes which 
appear in his handwriting on the labels of some of the specimens are of more than ordinary interest, especially when we consider 
bow few data of the sort are available for even the commoner species of this group of anim als. 
To Dr. Harold Heath I am once more under obligation for the opportunity to work up an important collection originally 
placed in his own hands for study. It is also due to him that the series of drawings prepared by Mr. R. U. Hudson came into my 
bands at the same time with the specimens, so that the major portion of them could be utilized in the present report. Other illus. 
trations in these pages are the work of Miss Lora Woodhead, Mr. Henry Vamum Poor, and Mr. John Howard Paine, all of Stanford 
University. 
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