NUCLEO. 



468 



N 



lying between the Marcellus hlack slate and hydraulic cement 

 beds, at Rock Island; at foot of Ohio falls; near Louisville; 

 and in Indiana. Confined to bottom^.beds. VIII a. 



Nucleocrinus verneuili. 



( Olivanites verneuili^ Troost* 



FuiJ" 



Geol. Tenn. Report 6, 1841, page 487, plate 5, fig. 1, nat, size^ 

 anal side ; 1 a^ opposite side ; 1 ^, summit ; 1 d^ base ; abundant 

 a few feet beneath the cement layers^ at Ohio Falls, and on 

 Beargrass creek. Fig. 1, giving the dissection of the plates, is 

 omitted. — Corniferous, Villa, 



Nucleospira pisiformis. Hall. From Collett's Indiana 



efi" n^' _^ €a 



IND. 



Pt.2S 



Report of 1881, p. 301, plate 25;, figs. 22 to 25. Dorsal, ven- 

 tral, lateral and cardinal views of a ventricose specimen, hav- 

 ing much the appearance of JSF, ventricosa of the Lower Held- 

 erberg group. Figs. 26, 27, dorsal and lateral views of a less 

 ventricose specimen, with surface almost entirely covered by 

 fine setae ; fig. 28, dorsal view of a specimen with more prom- 

 inent beak. — Niagara^ Vi, 



Nucleospira concinna. {Atrypa Goncinna.) Hall, 1884, p, 

 200, fig. 80, 3. ^^m^7^w. — Claypole, F2, 

 preface, p. xiii, Perry Co., Pa. Hamilton. — 

 Specimens 808-1 (determined by James Hall) 

 from Dingman's Falls, Pike Co. VIII c. — 

 809-7 (determined by James Hall, Nov., 1888) ; 

 809-8 (cast, doubtful) ; 809-10 ; (00 p 235) 



•^^^^^fq from collections along canal near Port Jervis, 

 80.^*^^^ Orange Co. N. Y. in Hamilton rocJcs. VIII c. 



