, 
356 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 
NOTICE OF RECENT ADDITIONS TO THE WARENE INVERTEBRATA, 
OF THE NORTHEASTERN COAST OF AMERICA, WITH DESCRIP- 
TIONS OF NEW GENERA AND SPECIES AND CRITICAL BEMARKS 
ON OTHERS. 
PART II.—MOLLUSCA, WITH NOTES ON ANNELIDA, ECHINODERMATA, ETC., COL- 
LECTED BY THE UNITED STATES FiSH COMMISSION. 
By A. E. VERRILL. 
The species included in the following paper, unless otherwise stated, 
have been collected by the parties employed by the United States Fish 
Commission for several years past in exploring the waters and invest1- 
gating the marine animals of this coast.* This work has been under 
the immediate direction of the writer, who has personally taken a part 
in most of the very numerous dredging excursions.. The total number 
of stations dredged or trawled amounts to over 1,200. Among the large 
number of persons who have taken a more or less important part in these 
explorations, in connection with the invertebrate department, I may par- 
ticularly mention Prof. 8. I. Smith, Prof. A. 8S. Packard, Mr. Sanderson 
Smith, Mr. Richard Rathbun, Prof. H. E. Webster, Mr. Oscar Harger, 
Mr. E. B. Wilson, and Mr. 8. F. Clark. 
During the last three years Mr. Sanderson Smith has given special 
assistance in caring for the testaceous Mollusca in the dredging season, 
and has also been engaged with the writer at various other times in the 
working up of the Mollusca of Northern New England for publication. 
Owing to the great accumulation of materials, this will necessarily take 
much time. In the mean time the following catalogue will afford much 
useful information as to the additions recently made to our molluscan 
fauna. 
This season, the most interesting and prolific region of our coast 
- hitherto explored was discovered upon the outer bank, or slope, situated 
from 70 to 80 miles south of Martha’s Vineyard, and from 90 to 115 
miles south of Newport, R. I. 
In September and October three very successful trips were made to 
this region. 
The first of these trips was made September 3 to 5, south of Martha’s 
Vineyard, about 70 to 80 miles (stations 865 to 872), where the depth 
was from 65 to 192 fathoms. The bottom was mostly fine compact sand, 
with some mud, and with a large percentage of Foraminifera. The 
*In this article 115 species of Mollusca‘are recorded as recent additions to the fauna 
of New England. Of these, 48 species are apparently undescribed (including 23 spe- 
cies just published in the American Journal of Science, for November). The number of 
species included in this article that are not contained in the last edition of Gould’s 
Invertebrata of Massachusetts is 125. Many other species, not here included, have 
previously been added by me to those contained in Gould’s work. Many of these are 
enumerated in the author’s Preliminary Check List of the Marine Invertebrata of 
Northern New England, 1879. Many will be found in various articles in the American 
Journal of Science; others are contained in the Report on Invertebrates of Vineyard 
Sound, in Part I of the Reports of the United States Fish Commission, 1873. 
