NATURAL SCIENCES OF PHILADELPHIA. 
481 
1890.] 
Treasurer ,...... Charles P. Perot. 
Conservator, ..... Dr. George A. Pex. 
Corresponding Secretary , . . . Dr. Charles Schaffer. 
Very respectfully submitted, 
Harold Wingate, 
Recorder. 
REPORT OF THE CONCHOLOGICAL SECTION. 
Since the last annual meeting of the Section specimens have 
been received from forty-three sources, to the number of 1698 trays, 
a detailed list of which will be found in the record of additions to 
the museum. 
The most important collection received is that made by the ex¬ 
pedition from the Academy to Yucatan and Mexico, under the 
charge ot Professor Angelo Heilprin. Marine shells were collected 
at Progreso, Silam, Campeche, and Vera Cruz—some 325 trays in 
all. Land shells were collected in Yucatan and Mexico at many 
localities, to the number of 406 trays, including many species not 
before in the collection, and a few probably new. A catalogue of 
the marine forms has been prepared by Mr. Frank C. Baker, my 
former assistant, for publication in the Proceedings of the Academy. 
It will be found of great value to students of the West Indian 
fauna, as many species are for the first time recorded from the 
mainland. The condition of many of the specimens is not very good, 
but this does not materially lessen their value to the zoogeographer. 
The land and fresh-water forms are being studied by the Conserva¬ 
tor of the Section, and a catalogue of them will be offered for publi¬ 
cation later. 
A collection of 203 trays of land and fresh-water shells from 
California, Idaho and Washington, purchased by the Conchological 
Section from Henry Hemphill, increases our suites of western 
species, and adds to the museum many new species and varieties, a 
part of which have been described by the writer and others. 
A collection of shells, including many alcoholic specimens made 
by Dr. Benjamin Sharp in the Caribbean Islands, adds 94 trays to 
our suites of West Indian marine shells, and 25 trays of land species. 
Dr. Sharp has also presented 30 bottles of excellently hardened 
and preserved alcoholic material collected by him at Naples and 
Villa Franca. 
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