58 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 60 
Ca ae 
Cae ee Oe OE 
o a ig a. 4 
Se ARS IE sh salle or ag Ty 
Fic. 64—Mr. Wm. Palmer digging for fossils on Chesapeake Bay. 
Photograph by Gronberger. 
OBSERVATIONS ON MOLLUSKS AMONG THE BAHAMA ISLANDS 
AND THE FLORIDA KEYS 
On the invitation of Dr. Alfred G. Mayer, director of the Depart- 
ment of Marine Biology of the Carnegie Institution, Dr. Paul Bartsch 
of the National Museum joined an expedition on the steamer Anton 
Dohrn to the Bahama Islands, the main object being a study of the 
marine mollusks of that region in their natural surroundings, with 
special reference to the boring and nestling organisms associated with 
corals. 
Incidentally a trip was made by motor boat up the Miami River, 
and along the Everglade drainage canal; as well as several visits 
to the off-lying keys. Collections were made in all these places and 
careful notes bearing upon faunal associations were taken upon all 
the material gathered. The region about Miami is extremely well 
suited for observations of this kind, as it presents many different 
