Marine Mollusca of Mew (Brunswick. 
23 - 
name, it is given along with the older one. In the list all of 
the names from Binney’s Gould are printed in heavy type,, 
all names printed in smaller type are those of species which- 
are not referred to in the latter work, but are from others. 
No synonymy of the species has been attempted, beyond 
what is absolutely required for a proper understanding of the 
authorities quoted. Where an author uses for a certain 
species a name different from that of Binney’s Gould, it is of 
course necessary to give the former in full. In giving the 
authorities for the names used, the latest and best rule on the 
subject is followed, i. e., the name of the first author to use 
the specific name is given in brackets, and after it that of the- 
one who first used the combination of generic and specific 
names. Where the original describer of the species placed it 
in the genus in which it still remains, his name is given alone 
without brackets. A few errors in this regard in Binney’s 
Gould have been corrected in the list, but the authority of 
names quoted from other papers are given as they occur in 
the latter. The cajaital letters refer of course in all cases to 
the corresponding papers in the bibliography above. The 
terms litteral, coralline, etc., used in describing the distribu- 
tion in depth of the species, have their usual meaning. The 
litteral zone is the belt between high and low-water marks; 
the laminarian from low-water mark to fifteen fathoms, and 
the coralline from fifteen to fifty fathoms. 
No sharp line can be drawn between those waters which are 
coast waters of New Brunswick and those which are not, 
which is at the same time geographical and zoological. For 
reasons already stated, the Gulf of St. Lawrence is not 
included among our coast waters. Eastport harbour belongs 
as much to us as to Maine, and is considered in the list as 
among our waters. Out of deference, however, to the geo- 
graphical line, those species which occur in Eastport harbour, 
but nowhere else in New Brunswick, are given in a separate 
list. For all localities for which authority is not given, the 
writer is alone responsible. 
Harvard University, Cambridge, Mass., October, 188G. 
