40 PENNSYLVANIA AND NEW YORK DEVONIAN. [bull. 120. 
Nil cula corbulifonnis Hall ( a ) 
Nuculites cuneiformis Con. (?) (rr) 
Cbonetes corouata (Con.) Hall (<0 
Tropidoleptus carinata (Con. ) Hall (rr) 
Pterinea flabellata (Con.) Hall (rr) 
Modiomorpha concentrica (Con.) Hall (?) (it) 
Modioniorpha of. snbalata (Con. ) Hall (it) 
Leda rostellata (Con.) Hall ' (rr) 
Amboccelia umbonata (Con.) Hall (r) 
Leiorliynchus uiulticosta Hall (rr) 
Spirifera mucronata (Con.) Bill (c) 
( ?) Terebratula sp (r) 
No. 1477 A3. — A short distance farther up the road are coarse, quite 
fossil iferous, arenaceous shales, forming ledges on the hillside above 
the highway. Above these, farther up the hillside, the shales become 
more argillaceous, split up into finer pieces, and contain the smaller 
Lumellibranchs. This zone is apparently near the horizon called 
Genesee by Prof. White, and the transition is not far south of a private 
bridge across the Delaware and Hudson Canal. 
Fauna of No. 1477 A3. 
Tropidoleptus carinatus (Con.) Hall (aa) 
Orthis vanuxemi Hall (a) 
Modiomorpha concentrica (Con.) Hall (rr) 
M icrodon (Cypricardella) bellistriatus (Con. ) Hall (rr) 
Palseoneilo constricta (Con.) Hall (rr) 
Nucula corbulifonnis Hall (r) 
Nuculites oblongatus Con (r) 
Tellinopsis subeniarginata (Con. ) Hall (r) 
Pholadella radiata (Con. ) Hall (?) ' (rr) 
Gran mysia constricta Hall (rr) 
Orthonota ( ? ) parvula Hall (rr) 
Orthonota undulata Con (rr) 
Paracyclas lirata (Con. ) Hall (rr) 
Grammysia arcuata (Coil.) Hall (?) (rr) 
Modiella pygmaea (Con.) Hall (rr) 
Homalonotus dekay i (Green) Em (rr) 
Loxonema hamiltonise Hall (rr) 
Bellerophon leda Hall (rr) 
Spirifera mucronata (Con.) Bill (c) 
( ? ) Cry ptonella planirostra Hall (rr) 
Glyptodesma erectum (Con. ) Hall (rr) 
Cyrtina hamilt onensis Hall (rr) 
Coleolus tenuicinctiim Hall (rr) 
DELAWARE RIVER SECTION. 
No. 1477 AS. — A ledge of rock on the eastern side of the highway, 
forming quite a steep hill, one-fourth of a mile south of Sparrowbush. 
Bather coarse arenaceous shales, containing numerous fossils in certain 
layers. This outcrop as mapped by Prof. White is probably near 'the 
top of the Hamilton, the Genesee zone forming the next covered slope 
