MUSEUM OF COMPARATIVE ZOOLOGY. 175 
<¢ Albatross” in the Antilles and on the eastern coast of the United States 
south of Cape Hatteras. These collections, to which frequent reference 
will be found in the following pages, though Jess extensive than those 
of the “ Blake,” often supplemented the latter in a very helpful manner, 
without which this report would have been in many cases less full and 
accurate. They also contained many novelties which will form the sub- 
ject of future study, and are occasionally noticed here when they tend 
to throw special light on the subject in hand. 
To the Rev. R. Boog Watson I am especially indebted for advice, criti- 
cism, early copies of his papers on the Challenger gastropods, and advance 
proofs of some of his plates to appear in his final report. To Dr. Paul 
Fischer, conchologist to the French expeditions on the “ Talisman” and 
“ Travailleur,” and to Mr. Edgar A. Smith of the British Museum, reporter 
on the Challenger pelecypods, I am also under serious obligations. 
To Dr. J. C. McConnell, whose pen drawings of shells for the process 
adopted in illustrating this paper speak for themselves, every reader will 
appreciate my indebtedness. It is proper to say, however, that this pro- 
cess does not lend itself like lithography to the reproduction of texture 
or surface, and that the details of description are in all cases to be taken 
as conclusive, even when the minor characters mentioned are not fully 
presented by the figures, or in the case of any supposed discrepancy. 
The types of the species described will be found in the Museum of 
Comparative Zodlogy at Cambridge, and in the U.S. National Museum. 
It has not been thought necessary to reprint the descriptions published 
in 1881, but, for the convenience of the student, the maximum length 
of the specimen figured, given in millimeters, follows the references to 
figures in the description of the plates. 
The names adopted for species, etc., although conformed to Latin 
construction and whatever their resemblances, are not to be taken as 
derived from any classical language. The ravages of the purists upon 
our nomenclature, already disastrous, must be checked if possible, and 
I know no other way of doing it than to declare the above-mentioned 
names absolutely without meaning, whatever reminiscences they may 
awaken. Compare the observations of Adanson, more than a century 
ago, on this topic, in the prelude to his “ Histoire Naturelle du Sénegal.” 
The arrangement of tables of distribution, in area and depth, is de- 
ferred until the second part of this Report shall be printed. For a satis- 
factory account of the faunz of the deep sea the data are wanting, and 
can hardly be gathered in many years to come. The anatomical plates, 
which will probably have to be lithographed, are also deferred. Some 
