20 (Bulletin of the jNatural History Society. 
Straits and thence up to Caraquette and in the Bay Chaleur, 
the animal life is decidedly of a more southern type. Shells 
are found in these waters which do not thrive elsewhere north 
of Cape Cod, except at one or two isolated and very sheltered 
localities. A very conspicuous and familiar example of this 
is afforded by the oyster. It is abundant on the North Shore 
and formerly occurred at several points on the New England 
coast. It is now, however, altogether extinct north of Massa- 
chusetts Bay, with this single exception. The persistence of 
this assemblage of southern forms amid the cold northern 
waters, shut off as it is from the similar fauna far to the 
south, is readily explained by the physical conditions of the 
region mentioned above. But how it came to be there, or 
the conditions which determined its connection with and 
severance from the fauna now south of Cape Cod, have not 
been satisfactorily explained. We have then, literally, upon 
our northern shore a southern fauna, and upon our southern 
shore a northern fauna. 
The following list is believed to include all works and papers 
of importance published up to the present time which relate 
to the marine molluscan fauna of New Brunswick. Papers 
which contain one or a few isolated references are omitted, 
but in the list of our mollusca which follows they are specially 
referred to when necessary. The following may be considered^ 
then, to be comprehensive Bibliography of New Brunswick 
Malacology in so far as the latter relates to distribution. 
A. (1851). Revision of the Synonymy of the Testaceous Mollusks of 
New England. By William Stimpson. Boston, 1851. 
Contains a few references to species found at Eastport 
and Grand Marian. 
B. (1854). Synopsis of the Marine Invertebrata of Graud Manan : or 
the region about the mouth of the Bay of Fundy, New 
Brunswick. By William Stimpson. Smithsonian “ Con- 
tributions,” Yol. VI., 1854. An accurate and systematic 
catalogue with notes on the distribution, etc., of the 
invertebrates of these waters. It mentions 117 species 
of molluscs, to which number many have since been 
added by the explorations of the United States Fish 
Commission. 
