I03 LiGNiTic Stagr 103 



Pteropoda. 



Spirialis choctavensis, PI. 12, fig. 24. 



Syn. P/iysa choilat'etisis Aid., Jr. Cinn. Soc. Nat. Hist., July 1SS7, p. S3. 

 Spirialis choctai'ensis Aid., Bull. Am. Pal., vol. i, p. 57, pi. 3, fig. 

 10, 1S95. 



Aldricli' s original description. — "Shell thin, minute, rather ob- 

 tuse and broad, whorls probably five, somewhat shouldered, outer 

 lip slightly patulous, inner lip reflecfted and reaching well upon 

 the body wall, surface showing lines of growth only. 



''Locality. — Chodtaw corner, Ala., Woods bluff group. 



"Resembles somewhat ver}^ young specimens of the common 

 Physa hetcrostropha Say., but presenting differences enough to 

 constitute a distindl species. 



"Five specimens found." 



The specimen figured is in the Cornell Univ. Paleont. Mus. , 

 from Woods bluff. 



Spirialis elongatoidea, PI. 12, fig. 25. 



Sj-n. Physa elongatoidea Aid., Jr. Cinn, Soc. Nat. Hist., July 18S7, p. 83. 

 Spirialis elongatoidea Aid., Bull. Am. Pal., vol. i, p. 57, pi. 3, fig. 

 9, 1895- 



AldricJi' s original description. — "Shell thin, minute, strongly 

 sinistral, whorls five, smooth, suture strongly impressed and very 

 oblique to the axis, aperture almost quadrate, inner lip meeting 

 the parietal wall abruptly and reaching down nearly straight. 

 Locality same as previous species. This form is peculiar in de- 

 parting from the American living types and being more elongate 

 than any here known. It might be mistaken for a species of 

 Limnea if it was not sinistral. The only specimen found is a 

 .young shell." 



No .specimens have been found in our colledlions. The figure 

 is of Aldrich's type. 



Cephalopoda. 



Nautilus fragment, PI. 12, fig. 26. 



From Woods bluff, Ala. 



