THE DEVONIAN FOSSILS OF CANADA WEST. oo 
Locality and formation.—Oriskany Sandstone and Corniferous 
Limestone, County of Haldimand. 
Collectors.—A. Murray; E. Billings; E. De Cew and J. De Cew. 
Other Species of CHonetes and Propvucta. 
a 
Fig. 124. Fig. 125. 
Fig. 124.—Two species of Chonetes undetermined. 
125.—Producta. A small undetermined species. @.—Side view. %.—View of ventral 
valve. 
Besides CHONETES HEMISPHERICA there are three or four other 
small species of the genus in the Corniferous Limestone and Hamil- 
ton Group in Canada West, but in the present condition of the 
literature of American Paleontology I cannot determine them. The 
student is referred to N. Y. Regents’ Reports. Fig. 124 represents 
two species, one with the spines directed obliquely outwards and in 
the other erect. They are both from the Hamilton Group. 
In the Corniferons Limestone we have also two small species of 
Producta. One of these (Fig. 125) is covered with nodular radia- 
ting ribs. The other is about the same size as the above but with a 
smooth tubercular surface. 
Genus Leprocaiia? Hall. 
This genus as described by Professor Hall in the 12th Annual 
Report of the Regents, published in October or November 1859, seems 
to differ from Centronella only in consisting of species which have 
the surface ribbed instead of smooth. Professor Hall dates his genus 
back to 1856, but no description was published until the issue of the 
12th Regents’ Report and therefore should it be the same as Centro- 
nella it cannot be retained, as the latter has the priority. For the 
present I shall use it provisionally, not having seen the internal 
structure myself. 
Leproca@iia? FLABELLITES. (Conrad.) 
ATYRPA FLABELLITES. (Conrad.) Annual Report onth Paleeonto- 
logy of New York for 184], p. 55. , 
LeproceniA propria + L. rieriata + L. picxoTroma.—Hall, 
in various works. 
