THE NAUTILUS. 119 
DREDGING IN LONG ISLAND SOUND. 
[Report of Mr. A. H. Gardner. From the Transactions of Isaac Lea Conchological 
Chapter of the Agassiz Association for 1893.] 
Of the species of bivalve mollusea given as dredged in Long 
Island Sound, all are common to the waters of New York Bay with 
the exception of Pecten irradians and Modiola modiolus. Nucula 
proxima has so far only been found by the writer in the curve of 
Sandy Hook Bay, the remaining species are more abundant in the 
bay than in the sound. 
It must be remembered that the portion of the sound dredged in 
only constitutes a small section of it contiguous to New York City. 
The Odostomia given as bisuturalis and trifida are probably one 
and the same thing; the distinguishing character being insignificant. 
The specimens dredged in Lloyd’s Harbor are rather smaller than 
others, and apparently have a few more revolving lines. The calmer 
waters of the sound seem to favor the growth of many small species 
of univalve shells, uncommon in New York Bay, where their place 
is probably supplied by the larger species of Natica and Fulgur, 
which species are taken in almost every haul of the dredge in the 
bay, and are not found commonly in the sound. 
List of localities and Mollusca dredged in Long Island Sound, 
July 15 to 22. 
Hempstead Harbor, 2 to 4 fathoms, mud: 
Eupleura caudata Say, 3; Pandora trilineata Say, 2; Mulinia 
lateralis Say,9; Arca transversa Say, 1; Nucula proxima Say, 12; 
Yoldia limatula Say 5. 
Matinicock Point, 3 fathoms, mud: 
Astyris lunata Say, 3 ; Tritia trivittata Say, 1; Pandora trilineata, 
3; Nucula proxima, 34. 
Plum Point, Oyster Bay Harbor, 3 to 4 fathoms; oyster beds: 
Tornatina canaliculata Say 2; Astyris lunata, 8; Urosalpinx 
cinereus Say, 4; Fulgur canaliculatum Say (young), Hupleura eau- 
data 7; Solen americana Gould (young), Pandora trilineata, 4; 
Arca transversa, 7; Nucula proxima 21; Pecten irradians, 1. 
Lloyd’s Harbor, 2 fathoms; mud and eel grass: 
Tornatina canaliculata, 35; Bittium nigrum, 29 ; Odostomia trifida, 
36; Turbonilla elegans,1; Anachis avara Say, 7; Astyris lunata, 
abundant; Nassa obsoleta, abundant; N. vibex, 2; Urosalpinx cin- 
ereus 1; Eupleura caudata, 15; Pandora trilineata, 1; Mulinia 
lateralis, 12; Lyonsia hyalinia Say,2; Tellina tenera, 1; Arca 
transversa, 3; Nucula proxima, 34; Yoldia limatulu, 1; Pecten ir- 
radians, 2. 
