BucA. 



9> 



Cm A G 



Cm A 



P! 6 



Bucaniabidorsata. Hall. (Bellerophonhidorsatus.WOr- 



bigny.) Emmons, Amer. Geol. 1. 

 ji, 1855, page 165, plate 5, figs. 8, 

 27 (copied from Hall's Pal. N Y., 

 Vol. 1,1847). — Tre?iton formsiiion 

 atMiddleville and Watertown, N. 

 g Y. — Note. The name comes from 



a narrow sharp ridge between two grooves 

 down the keel of the back. In young ones 

 the keel band and central line are very 

 conspicuous. At Watertown in beds over 

 the Black river limestone. — II c. 

 Bucania hilohUus. See Beilerophon "bilobatus. 

 Bucania expansa. {Beilerophon expansus^ Hall, Pal. N. Y. 



Vol. 1, 1847, 

 Trenton,) Em- 

 mons, Amer, 

 Geol. Vol. 1, 

 part 2, page 

 164, plate 6, 

 figs. 7 a, 5, 

 showing the 

 '' wide everted 

 semi- circular 

 mouth." Tren- 

 ton limestone at Watertown, N. Y. — In Penn- 

 sylvania, I. C. White finds it iti the Chemung 

 in bed 30 of section 13 (bed 59 of section 

 78) at Rupert and Catawissa, in Columbia 

 Co., 950 feet above the top of the Genesee, 

 and therefore Portage. G6, p. 69, 2S6.—IIg and VIII f. 

 Bucania profunda. {Euomphalus profundus.) Hall 

 Geolog.y of the Fourth district of New York, 

 1843. Plate fig. [27, 2]. Vanuxem, Geology of 

 the Third district N. Y., 1 842, page 117, fig. 25, 2. 

 (Conrad, 1841, Ann. Et. N. Y.) Lower Held- 

 erberg formation. ( Hall, Pal. N. Y., Vol. Ill, 

 1859, Lower Helderlerg formation.) — Clay- 

 pole list of Perry Co., Pa., fossils. F2, 



VanT^lS* 2^^^^'^^^ P- xiii.— FZ 



