no Bulletin 4 ^34 



This species? is only another form that can be traced directly 

 into T. inortoni. Larger specimens occur in great abundance 

 in the so-called Turritella rock of Tippah Co. , Miss. , especially 

 Yt. mile south and two miles east of Ripley. A larger specimen 

 of a slightly different form is shown by fig. 8, pi. 11. This was 

 obtained from the Midway limestone, i^ miles N. E. of Brad- 

 ford station, Ark. 



Type of this (species?). — Collection of Jas. M. Safford. One of 

 these type specimens is shown by fig. 7. 



Turritella moi^toni var. levicunea n. var., PI. 11, fig. 9. 



This variety differs from typical T. viortoni by its greater apical 

 angle, its finer striation and the lack of a strong subcentral carina 

 on the whorls. 



Localities. — Alabama: Matthews' Landing; Dale's Branch. 

 Georgia: Ft. Gaines. 



Type of variety. — Paleontological Museum, Cornell Univ. 



Turritella mortoni Con. is doubtless represented by the forego- 

 ing so-called species (figs. 5-8), but it also occurs in the form of 

 casts in great abundance, large size and of most typical form in 

 a soft layer in the Midway limestone near its base along the 

 Chattahoochee river. 



Other Midway localities whence more or less typical forms have 

 bee?i obtained are: — 



Texas: 4 mi. N. of Kemp, Kaufman Co. 

 Arkansas: Sect. 9, i S., 14 W. ; near Olsen's 



switch; Johnson's well, Little Rock. 

 Tennessee: Hannah's. 1% mi. N. K. of Craines- 



ville; Middleton. 

 Mississippi: yi mi. N. of Ripley. 

 Alabama: At and near the Cretaceous- Eocene 



contact line in many localities about Prairie Bluff; 



I mi. N. of Midway; >^ & 2 mi. N. of Snow Hill; 



Palmer's mill; i^ mi. S. W. of Palmer's mill. 



Turritella hufnerosa, PI. 11, figs. 10?, 11, 12, 13. 



Syn. T. kumerosa Con., Trans. Geol. Soc, Penn., vol. i, 1835, 

 p. 340, pi. 13, fig. 3. 

 T. eurynome Whitf. , Am. Jr. Conch., vol. i, 1865, p. 266. 

 T. multilira Whitf., ibid., p. 266. 



T bellifera Aid., Geol. Surv. Ala., 1886, Bull. No. i, p. 

 34. pl- i> fig- 13- 



