443 



Naut. 



Illust. Dev. Foss. 1876; Pal. N. Y. Vol. 5 ii, 1879, page 412, 

 plate 60, fig. 1, back side of very good example; 106, 7, sec- 

 tion of a small specimen showing the relation of a large in- 

 habited chamber to the small air chambers ; 107, f. 5, enlarged 

 surface markings; 109, 1, belly view of grand chamber of 

 young specimen, with wonderfully perfect surface ornamenta- 

 tion. (The sharp ridges crossed by fine striae, are exactly like 

 those of specimens from the Goniatite limestone) Hamilton, — 

 In Pennsylvania recognized by Claypole & White in Hunting- 

 don Co. (T3, p. 109) in Hamilton upper shale. VIII c, \ 



Nautilus canaliculatus, Cox, Geol. Sur. Kv., Vol. 3, 1857, 



3. 3 



CoK^ ^^^mm^^ aeo\,Ky,VoL3 



page 575, plate 10, fig. 3, natural size ; 3 a^ section of a smaller 

 specimen. Abundant with Goniatites nolinensis and Nautilus 

 ferratus^ at Nolin Iron Works, Edmonson county, Ky., in a 

 thin stratum of fire-clay with plants, 100' above the conglom- 

 erate. XIII 



Nautilus clarkanus. (Hall, Trans. Alb. Inst. Vol. 4, 

 XI. .._ ,i^^2 1856. Whitfield, Bull. 3, Am. Mus. Nat. Hist, 

 plate 8, fig. 1, 1882). CoUett's Indiana Report 

 W^ of 1882, page 373, plate 31, fig. 1. All the speci- 

 ~'"-^^^'My>, mens are somewhat worn; fine scratches on the 

 P^-^/- side edge of the shell gone. Spergen Hill and 

 Lanes ville, Ind. Suh-cai'loniferous limestone. XI 



Nautilus docoratus. (Somewhat like Nautilus tuler- 

 Gulatus.) Roger's Geology of Pennsylvania, 1858, p. 833, fig. 

 692, Coal Measures. Also, Kentucky survey. Vol. 3, 1.S57, 

 page 572, plate 9, figs. 4, 4 a, natural size. Found crushed in 



