= 
70 THE NAUTILUS. 
Habitat from Great Ege Harbor, N.J.,to Nova Scotia. Com- 
mon on the shores of Long Island, Nantucket, Martha’s Vineyard 
and Cape Cod. Abundant in Massachusetts Bay. It should be 
found on the ocean shores of Rhode Island from Watch Hill to: 
Newport, and also on Block Island. 
184.— Astarte quadrans, Gould. 
Shell small, nearly triangular; basal edge sharp and rounded ; 
anterior more oblique and longer than the posterior; beaks central, 
pointed and eroded; surface smooth; epidermis light yellowish- 
olive ; interior bluish-white, glossy ; margin not crenulated. Length 
zo; height 2; breadth +5 inch. 
Described by Dr. A. A. Gould in the Invertebrata of Mass., p. 81,. 
1841, from specimens obtained from the stomachs of fishes caught in 
Massachusetts Bay. It is a rare shell but has been quoted from 
Stonington, Connecticut, to the Gulf of St. Lawrence. 
185.—Astarte undata, Gould. 
This name was given provisionally by Gould to a variety of A. 
suleata, described in his first edition of the Invert. of Mass., p. 80. 
Binney in the second edition, 1870, p. 119, repeats the same remarks, 
but all later authors accept the name of undata. 
Astarte sulcata is an European species described in 1778 by 
Da Costa, British Conch., under the name of Pectunculus sulcatus. 
Gould, supposing our shell to be identical with the English one, 
called it by the same name, giving a list of ten or more synonyms, 
none of which apply to our shell, as it is a distinct species. 
Prof. A. E. Verrill in Silliman’s Journal for April, 1872, p. 213, 
remarks as follows: ‘This is by far the most abundant species on 
the northern coast of New England. It ranges from Cape Cod to 
Labrador. In the Bay of Fundy it is very abundant at all depths 
from three to one hundred and twenty-five fathoms on muddy bot- 
toms. It varies greatly in form and sculpture, but can easily be 
recognized in all its varieties by any one familiar with the species 
of this genus. The beaks are less prominent and the lunule less 
deeply excavated than in A. sulcata, and other differences exist in 
the hinge, etc.” 
The figure in the second edition of Gould is not characteristic, 
the drawing having been made from an old eroded specimen of 
unusual if not abnormal form. 
