197 Midway Stage 83 



the cast shown in fig. 6, a. A gutta-percha mould of the same 

 individual is shown b}^ fig. 6. The plaits shown in the latter 

 figure are restored from the cast, fig. 6, a. As we have but few 

 specimens it is not possible to give the apical features, but 

 in so much as the plaits, the exterior marking and the absence 

 of lirse on the interior of the outer lip are all indicative of this 

 genus we think it can be placed here with little doubt. 



Localities. — Alabama: Light yellowish limestone in a R. R. 

 cut, lYi mi. N. E. of Clayton. 

 Georgia: Base of Midway limestone, Chattahoo- 

 chee river, about 3 mi. S. of the mouth of Pataula 

 creek. 



Type. — Paleontological Museum, Cornell Univ. Tj^pe from 

 i>^ mi. N. E. of Clayton. 



VOLUTILITHES. 



Vohitilithes rugatus, PI. 8, fig. i. 



Syn. V. rugatus Con., Jr. Ac. Nat. Sci. , Phila., vol. iv, i860, 

 p. 292, pi. 47, fig. 32. 



Conrad' s original descriptio7i.- " Fusiform; spire somewhat ele- 

 vated; volutions eight, convex, with minute, reticulated lines, the 

 revolving lines microscopic; larger revolving lines prominent; 

 ribs on the body whorl irregular, wanting near the base; an im- 

 pressed line revolves below the suture, giving that part of the 

 shell between this line and the suture an obscurel}^ or obtusely 

 carinated character; revolving lines on the body whorl distinct, 

 a deposit on the inner lip; columella with three approximate, ob- 

 tuse folds, the middle one obsolete; aperture narrow. 



" Length 2 inches." 



Conrad omits to mention the fact that the humeral region of 

 the costse is often very much developed, showing a tendency to 

 become bluntly spinous. 



Localities. — Texas: A few fragments seemingly of this species. 

 Alabama: Black Bluff, and 4 miles below, Tom- 

 bigbee river; Matthews' Landing; Dale's Branch; 

 I mi. W. of Oak Hill P. O. 



Volutilithes rtigatiis var. saffordi, PI. 8, fig. 2. 



Syn. Fasciolaria saffordi Gabb, Jr. Ac. Nat. Sci., Phila., vol. 

 iv, i860, p. 390, pi. 68, fig. 6. 



Gabb' s original description. — "Fusiform, spire? (broken in all 



