126 NEW YORK STATE MUSEUM 



Orthis sp. 

 Cf. Ort li is dor so pi an a Freeh. Lethaea Paleozoica. 1897. v. 2. pi. 233., fig. 3 



There are a few casts of ventral valves which have an unusually high 

 cardinal area and open delthyrium bearing the contour of O . t e c t i- 

 f or mis except that this is exaggerated by the elevation of the beak. 

 Indeed the aspect of the valve is almost that of Orthisina. Into com- 

 parison with this form may be brought the species cited above, from the 

 upper Coblentzian of Haiger. 



Locality. Edmunds Hill. 



Orthis sp. nov. 



There are several internal casts of dorsal valves which are remarkable 

 for their unusual aspect, viz, great length of hinge, deeply sulcate median 

 region, divergent sockets and large muscle scars. The general outline of 

 the shell is leptaenoid. The surface is radially striate. I have not ventured 

 to identify these shells. 



Locality. Edmunds Hill. 



Orbiculoidea cf. ampla Hall and siegenensis Kayser 



Plate 31, figures 23, 24 



This is a large species with elevated brachial valve which occurs freely 

 but bears no distinguishing characters from the forms above cited, the 

 former from the Oriskany of New York, the latter from the Siegen grey- 

 wacke. Of the latter Kayser remarks [Jahrb. d. konigl. preuss. geol. 

 Landesanst. 1890. p-95, pi. 9, fig. i, 2]: "I am acquainted with no spe- 

 cies in the rhenish Devonic, at least in the Lower Devonic, which can be 

 confounded with this. In fact there is only one Devonic Discina known to 

 me which is in any way comparable in form and size. This is J. Hall's 

 Discina grandis [a in p 1 a] from the Oriskany sandstone." 



Locality. Presque Isle stream. 



Polypora cf. celsipora Hall 



See Palaeontology of New York. 6: 150, pi. 41, 42 



Localities. Edmunds Hill. Very common in the Onondaga limestone 

 of the Appalachian province. 



Hindia sp. 

 Locality . Edmunds Hill. 



