47 LiGNiTic Stage 47 



Lionitir localilies. — x\lab:ima : Woods bluff ; Aid rich records it 

 also from Gregg's and Tuscahoma. Maryland : Casts from Ft. 

 Washington and localities in Virginia indicate the probable 

 presence of this species in the Lignitic of the Maryland-Virginia 

 basin. 



Specimen figured. — Woods bluff ; Lea Memorial CollecTiion, 

 Acad. Nat. Sci. Phila. 



Chrysodomus engonata, I'l- 6, fi^. 4- 



Syn. Fusus {Heinifiisus :^) eugoiiatus Heilp.. Proc. Ac. Nat. Sci, Phila., 

 iSSo, p. 372, pi. 20, fig. 8. 

 Fusus eugoiiatus Aid., Geol. Surv. Ala., Bull, i, p. 52, 18S6. 



Hei/prin's original description. — "Shell turreted, of about ten 

 volutions, the first three whorls smooth and convex, the 

 remainder strongly carinated, and traversed by numerous fine 

 revolving lines, which on the median portion of the body whorl 

 . alternate with intermediate finer striae ; body whorl impres.sed 

 immediately below the carination (shoulder angulation) ; lines 

 of growth sinuous, and approximating the characfteri.stic lines 

 of the Pleurotomidse ; aperture considerably exceeding the 

 spire in length ; columella slightly arcuate, and presenting a 

 rudimentary fold at about its central portion. 



"Length, 1 1/3 inches. Woods bluff, Clarke Co., Ala. 



"This species resembles the Fusus bifasciatus of De.shayps. 

 (Annimaux sans Vertebres, Bas.sin de Paris, 11, pi. 84, figs. 15, 

 16,) from the Paris basin, but may be readily distinguished from 

 that species by its more .slender form." 



This species is found in the lower Claiborne beds of 

 Texas ; in the Lignitic of Alabama at Woods bluft", 

 on the Tombigbee ; near Butler ; mouth of Bashi creek ; and 

 Nanafalia. 



Three of the embryonic whorls of this species are .smooth and 

 rotund and increase rapidly in .size ; the fourth is rotund and 

 non-carinate, but is marked by a net-work of lines, faint at first 

 but .stronger below ; the fifth whorl is also marked by longitudi- 

 nal and spiral lines and is carinate centrally. 



Type. — Pre.sumably in the Philadelphia Academy, though 

 not seen bv the writer. 



