26 
PALEONTOLOGY OF NEW YORK. 
the limestone near the top of these shales abundant, at LeRoy and Stafford, 
Genesee county; Flint Creek, town of Seneca, Ontario county: in the Hamil¬ 
ton shales everywhere; the most prolific localities being in the western coun¬ 
ties ; Tichenor’s and Menteth’s Points, Canandaigua Lake; Centerfield, Hope- 
well and Flint Creek, Ontario county; shores of Seneca and Cayuga Lakes; 
Moscow and York, Livingston county; Darien and Pavilion, Genesee county; 
Hamburgh and Eighteen-mile Creek, Erie county: in the Tully limestone at 
Moravia, Seneca county; Bellona, Yates county; near Borodino, Onondaga 
county. Also in the Hamilton formation at Charlestown, Indiana; “Bake- 
Oven,” Jackson county, Illinois; Iowa City, Solon, Roberts’ Ferry, Johnson 
county; Independence, Buchanan county, and New Buffalo, Scott county, lowa;"^ 
Washington Street Bridge and Whitefish Bay, near Milwaukee, Wisconsin; 
Cumberland, Maryland; (?) Comb’s Peak and Lone Mountain, Nevada; Wid- 
der and Arkona, Province of Ontario. 
Phacops bufo. 
PLATE VIII, FIGS. 25, 26. 
Calymene bufo. Green. Monogr. Trilob. North America, p. 41. 1832. 
Phacops bufo. Hah. Descr. New Species of Fossils, etc., p. 60 . 1861. 
Phacops bufo. Hall. Fifteenth Rejit. N. Y. State Cab. Nat. Hist., j). 93. 1862. 
Phacops b^ifo. Hall. Illustrations of Devonian Fossils, pi. viii, figs. 24, 25. 1876. 
The type specimen of Dr. Green’s species is an imperfect cast of the lower 
surface, and is said to have been found in a dark grayish limestone in the State 
of New Jersey. Its geological horizon was not definitely stated by its author, 
but is undoubtedly of the age of the Upper Helderberg or Hamilton group. 
The original example of the species presents a general agreement with Phacops 
rana {Calymene hufo, var. rana. Green), of the Hamilton group, but appears to be 
somewhat more elongate, with a proportionally longer and more tumid 
glabella. Specimens from New York State agreeing with the type have not 
been observed. 
* These localities in Iowa have been kindly communicated by Professor Samuel Calvin. 
