Marine Shells of. Massachusetts. 215 
A violent storm disperses and buries them in the sand, 
and they should be sought after moderate weather. 
They are more frequently found where a small lagoon : 
has an outlet on a sandy shore. But this is not their 
proper station, and specimens thus obtained are more or 
less cinereous and weather-worn. They are found living, 
not far above, and more frequently below, low water 
mark, on sea-weed, larger shells, stones, and other ma- 
rine bodies. Full grown individuals are rarely seen 
in any considerable number above high water mark. 
This summer I found however, in Dartmouth harbor, 
a large number, with but few of the young, left by the 
tide on the sand; but this is unusual. In the same 
harbor the young were found clinging, in great profu- 
sion, to the culms and slender filaments of various spe- 
cies of alow, where the water was from one to three 
feet deep at the time of low tide. By rinsing a few 
handfulls of the sea-weed in a bucket of water, great 
numbers were obtained. 
It is worthy of remark that the hb species of this 
genus, which are found. on the southeastern shores of 
Massachusetts, are scarcely distinguishable in respect to 
color, which, in all of them, ith the exception of the 
body whorl in the C. reticulatum, is reddish black, and 
becomes reddish cinereous on exposure to the weather. 
j ye 
'TURRITELLA. 
E or Torren, Am. June XXVIII, 
This species was PE obtained es Col. Pn BR 
3 
