History of Conchology in the United States: 169 
J. P. Cournuoy, a Conchologist of considerable reputation, 
described a large number of our shells, principally marine, in 
; the Boston Journal and in this Journal, 1838-9. He accompa- 
nied Wilkes’ Exploring Expedition, as Conchologist, collecting 
! large numbers of Molluscous animals and their shells. any 
of the species contained in Dr. Gould’s Mollusca of the Expedi- 
tion, are described by him. 
JOHN CLARKSON Jay, M.D., of Mamaroneck, Westchester Co., 
N.Y., has amassed a very large and valuable collection of shells; 
of which he has published several catalogues. The first edition 
was issued in 1835; second edition in 1836, with descriptions of 
new shells; third edition, 4to, 1839, with descriptions of new 
shells—illustrated with ten colored plates; fourth edition, 1850, 
: 4to, containing 10,874 species, with a supplement (1852) contain- 
| me additional names. 
Exception has a frequently taken to portions of Dr. Jay’s 
out so extensive a 
collection of authentic specimens, embracing in many cases nu- 
a varieties, and ing, besides, a very complete library 
—o have great weight among naturali 
‘ om his pen, relati 
Contained in this Journal for 1834, ’37, £0 
Year. Tt is entitled, “ Remarks on the sexes and habits of some 
of the acephalous Bivalve Mollusca.” 
ean Sy ous Bivalve oe aa 
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