195 Midway Stage 8i 



straight canal; pillar with no siphonal fascicle, a thin glaze ante- 

 riorly, and four thin, sharp, well-elevated plaits of which the 

 anterior is the least pronounced; canal not constricted off; outer 

 lip simple. Lon. of shell 26.0; of aperture 18.0; max. lat. of 

 shell 8.0 mm. 



" Lower Lignitic series, Prairie Creek, Wilcox Co., Alabama, 

 in the clays (No. 5) just above the Nautilus rock or Enclima- 

 toceras limestone." 



It is quite possible that Ball's specimen came from the clay 

 immediately overlying the Nautilus rock, i. e., bed 16 of our 

 section p. 31. Ours, however, (pi. 7, fig. 20) came from Dale's 

 Branch, bed 9; and from the confused state of Johnson's locality 

 labels, it is quite possible that Ball's specimen came from bed 9. 

 Certainly there is much misconception of the true relations of the 

 Midway Eocene when it is stated that ' ' The Nautilus rock is 

 the first fossiliferous Eocene bed, and lies immediately over the 

 Cretaceous Ripley beds," 1. c, p. 86. 



SCAPHELLA. 



Scaphella showalteri, PI. 7, fig. 21. 



Syn. Valuta showalteri Aid., Bull. No. i, Geol. Surv. Ala., 

 t886, p. 28, pi. 3, fig. 14. 

 Scaphella showalteri Ball, Trans. Wag. Fr. Inst. Sci., 

 vol. iii, p. 80, 1890. 



A Idrich' s original description. — "Shell oval, oblong; whorls five; 

 spire blunted; surface smooth and shining; lines of growth hardly 

 perceptible; suture moderately impressed. 



' ' Body whorl and next succeeding shouldered, bearing there- 

 on numerous small tubercles; above the shoulder they are concave. 



"Aperture two-thirds the length of the shell; columella four 

 plaited — the upper one transverse, the middle ones oblique and 

 larger. Outer lip smooth. 



''Locality. — Matthews' Landing, Ala. 



' ' This species is a true Volute, and belongs to the section 

 Vespertilio Klein — Rare. 



"Named in honor of Br. E. R. Showalter, of Point Clear, 

 Ala." 



Localities of specimens in the Paleontological Museum of Cornell 

 University. — Ai^abama: Matthews' Landing (figured specimen), 

 Alabama river; Naheola Landing, Tombigbee 

 river; Bale's Branch, near Oak Hill. 



