Page January 1978 No. 238 NEW YORK SHELL CLUB NotkEs 
to induce a slight head cold before starting. 
for this kind of shelling expe 
Passages. My personal bonus on 
mon loons just offshore on a qu 
doing their "laughing" bit, and I'd never 
i x that there's no visible end to my non-collecting, 
Shue thotus eins and vacations go on, I'll become increasingly 
skilled at my non-avocation. Really, I'm very pleased that Cherita 
wants to continue collecting for herself and for the Long Island 
Shell Club monograph. I'll be getting +o more sea edges and more 
birds. And Long Island has great birding from January to December, 
from Breezy Point to Montauk. 
(The above article was also contributed to LISC NEWS, Vol. 3:8-9.) 

MOLLUSKS OF THE PALISADES 
Morris K. Jacobson 
Land and fresh water shells are not easily found in the entire metro- 
politan area of New York City. However, a knowledge of their habits 
and an application of diligent search can uncover a large number of 
interesting and sometimes beautiful species, especially in the area 
of the Palisades. 
On the banks of the Hudson River, living in mud near the shore, can 
be found the small Mystery Snail (Campeloma decisum) as well as 
specimens of the small brackish water mussel (Congeria Leucophaeata). 
Other fresh water shells are also found, as well as an occasiona 
stray marine shell. 
In the ponds everywhere, as well as in small streams, live such com- 
mon fresh water shells as the Tadpole Snail (Physa sp.) and its 
close relative the Polished Tadpole (Aplexa h Terie the Pond 
Snails (Limnaea sp.) and the various forms of Rams Horn Snails (Heli- 
Soma sp., Gyraulus parvus, Planorbula jenksii, and Promenetus hud- 
sonicus, the last three being small to tiny shells). In larger riv- 
ers such as the headwaters of the Hackensack in Rockland County, are 
the river mussels: the Fragile Fresh Water Mussel (Anodonta sp.), 
the Filter Clam (Elliptio complanatus) and, most interesting of all, 
the Pearl-Bearing Mussel (Margaritana margaritifera). These clams 
can be found by feeling for them in turbid waters or looking for 
them (for which a little practice is necessary) when the water is 
Clear. In addition, most ponds and lakes have various kinds of Fin- 
gernail Clams, ranging from the large, brownish Sphaerium rhomboi- 
deum through the medium-sized Musculium to the tiny sub-triangular 
Pisidium. An interesting small snail that was introduced from Eu- 
rope, and is found in large numbers in several creeks, is the Faucet 
ti (Bulimus tentaculatus), so-called because at times it breeds 
n such numbers as to appear in the faucets of kitchens that are fed 
by snail-inhabited streams. There are also a number of small to 
Say fresh water mollusks such as: Valve Snails (Valvata sp.), Tiny 
. mee see (Amnicola porata), and Fresh Water Limpets (Ferrissia 
a : andsome, large and heavy shell is the Virginian Horn shell 
sgontobasis virginica), which we have found so far only in the North 
ch of e Raritan River, Occasionally we find the recently in- 
troduced Chinese Mystery Snail (Vi i 
ivip % 
flated, greenish olive, opens CC NTT: Saeed a ee 
