83 LiGNiTic Stage <S3 



"This shell is extremely rare. I found one specimen in i8- 

 85 and listed it in Bull. No. i, Ala. Geol. Surv., 1886, p. 53, 

 as Orbis rotella Lea. I have lately found two more specimens. 



"The largest example is 15 mm. in width and 4 mm. high. 



"This species differs from Orbis rotella Lea in size, in its aper- 

 ture being more quadrate, whorls greater in number, and also 

 in the extremely excavated base. 



''Locality. — Chodfaw Corner; Woods Bluff horizon." 

 Aldrich sent us a pencil drawing by Dr. Otto Meyer of the 

 original discovery, and from this we have made our figures. 



Hipponyx sylvaerupis n. sp. PL n, fig. 10, a. 



Specific chara£lerization . — Size and form as indicated by the 

 figure; beak eroded but showing little tendency to overhang; 

 radii large, irregular, interrupted by deeply-incised lines, render- 

 ing them difficult to follow; each costal segment as it appears be- 

 tween two lines of growth is usually a little longer than it is 

 wide, and is separated from the next costal segments on either 

 side by spaces equal in width to the width of the costa or rib. 



Probably the same species referred to by x\ldrich on p. 53, 

 Geol. Surv. Ala., Bull. No. i, 1886. 



Differs from H. pygmcea by size, less overhang of beak, coarser, 

 more interrupted radii, and characfter of radii in general. It has 

 not the large, coarse, continuous plications of H. ingrediens de 

 Greg. 



Localities. — Ala.: Woods bluff; Chocftaw corner. 



Type. — Paleontological Museum, Cornell University. 



Capulus expansus, PI n, fig's, n, 12. 



Syn. Velutina {Otina) expansa Whitf., Am. Jr. Conch., vol. i, p. 265, 



pi. 27, fig's. 14, 15, 1865. 

 Leptonotis expansa Con., Am. Jr. Conch., vol. 2, p. 76, 1866. 

 L. expansa Tryon, Str. and Syst. Conch., vol. 2, p. 208, pi. 64, 



fig's. 68, 69, 1883. 

 Capulus coviplectus Aid., Geol. Snrv. Ala., Bull, i, 1S86, p. 34, pi. 



6, fig's. I, I a. 

 Vclutbia expansa Aid., Jr. Cinn. Soc. Nat. Hist., July 1887, p. 81. 

 Capulus complectus (\^ Greg., Mon. Faun. Eoc. Ala., 1890, p. 145. 

 Velutina {Leptonotis) expansa de Greg., id em, p. 156. 

 Colyptrcca troctiiforinis (in part) Dall, Tr. Wag., etc., vol. 3, p. 352, 



