144 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
dent. Charles W. Johnson says, in his Fauna of New England, 
List of the Mollusca, a most valuable compendium, "The Gould- 
Binney edition of the Invertebrata of Massachusetts, pubHshed 
in 1870, is still the book on New England Mollusca and will con- 
tinue to be for some time." I have therefore used the names as 
there given. 
I am indebted to a number of friends for material embodied in 
this paper. During my brachiopod work at Eastport, Maine, I 
made many drawings of living Mollusca. While enjoying the 
hospitaUty of Mr. and Mrs. Sabin W. Colton, their son. Dr. 
Harold S. Colton, secured much material for me in the waters 
around Greenings Island, Mount Desert. Through Dr. and Mrs. 
Charles G. Weld I had rare opportunities for dredging in the 
waters of Penobscot Bay, as well as the use of a summer house 
for study. I am indebted to Mr. and Mrs. William F. Clapp 
for living Solemya velum and Solecurtus gibbus and for the proto- 
conch of Solemya velum. To my life-long friend, Major John M. 
Gould, I am specially indebted for living Solemya borealis and 
Thracia conradi. While a guest of Mr. and Mrs. Pwight Blaney, 
at Iron Bound Island, Maine, I had the use of their excellent 
laboratory and a larger part of the drawings were made from 
material Mr. Blaney dredged in the waters of Frenchman's Bay. 
To Dr. Gilman A. Drew my thanks are due for the use of his 
room at the Woods Hole Laboratory, and many southern forms 
were secured there. To Miss M. W. Brooks I am indebted for 
many of the protoconchs here figured. I have visited the prin- 
cipal beaches in Massachusetts and New Hampshire after storms 
and secured many interesting specimens. 
SOLEMYA VELUM Say. 
Fig. L Length, 23 mm.i 
In the Biological Bulletin, 1913, vol. 25, I published a memoir 
entitled Observations on Living Solenomya, in which are given 
general descriptions of our two New England species, S. velum 
and S. borealis. From this memoir I shall quote briefly. Mr. 
William F. Clapp supplied me with thirty-nine specimens of 
living S. velum. These were of varying sizes and special efforts 
' The length in millimeters refers to the shell and to the specimen drawn. 
