e 
THE HAMILTON ASSOCIATION. 89 
rocks are believed to be nearly all extinct ; and though the names of 
many recent forms appear in catalogues of Paleozoic fossils, it must 
be understood they are only employed in default of more exact 
information.” The unio-like Devonian Irish shell, unlike King’s 
Anthracosia, is invariably associated with land plants. 
DISCOVERY OF COLORED LINGULA IN CAMBRO-SILURIAN ROCKS, 
HAMILTON, ONT. 
The oldest colored shells yet discovered are three distinct 
species of Lingule, Lingula oblonga, L. oblata, L. perorata, from the 
Clinton Silurian beds of Hamilton ; colors, blue, pink and brown 
The Chairman submitted for inspection a still older specimen from 
Burlington Heights, obtained from a drift boulder containing also 
two characteristic Trenton fossils, RAinchonella Plena, and another 
which is also found in the Hudson River series. A Nacreous 
Gasteropod was some years ago discovered by the Rey. A. Car- 
michael at this locality in Cambro-Silurian shingles. 
NotEe.—I confess I am unable to see why the Limpets 
(Patelieda, Calyptreidx) should not be included among the Mollusca 
which appeared in Paleozoic times. The Metoptoma Estella 
(Billings) from English Head, Anticosti, seems to be a true Lonnet 
Limpet. The brittle stars, that possess the property of dissolving 
their Corporations at will, were represented at the time in question 
by Protaster. 
