59 LiGNiTic Stage 59 



columella with traces of two plaits or rather mere pustules ; 

 labrum smooth within. 



Differs from hasfropmsis Har. by having two instead of one 

 costate embr^'onic whorl, is smaller and more robust. 



Locality. — Alabama : Woods bluff. 



Type. — Paleontological Museum, Cornell University. 



^sopus erectus, 1*1. 7. ^s '2 



Syn. Sip/20 erec7a Aid., Bull. Am. Pal., vol. i, p. 65, pi. 5, fig. 7. 



Probably not .V. F creRa Har., Proc. Ac. Nat. Sci., Phila., 1896, p. 

 476, pi. 21, fig. 3. 



For Aldrich' s original description see vol. i, p. 6^. 



We have recently added a large ntiniber of this species to 

 the Universit}' collecftion from Woods bluff and it proves to 

 be quite different from what we had supposed from an examina- 

 tion of the figure. Its relationship to the Columbellidae is certain, 

 but to which genus it will finally be referred is now uncertain. 

 The exterior markings recall many species of Tnrricida and 

 Mitra, but its aperture is decidedly of the Astyris type. There 

 are however no labral crenulations. On the columella of the 

 type specimen there are traces of two faint oblique folds. 

 The present figure represents an adult shell from Woods bluff, 

 and now in the University colle(5lion. 



This species recalls A£sopusJilosus of Australian waters. 

 Terebrifusus amoenus, PI- 7. ^K- i3- 



Syn. Bucciniim a i/ue/n/i/i, Con., Foss. Sh. Tert. Form., p. 45, Nov., 1833- 

 Tcrehra gracilis Lea., Cent, to GeoL, p. 166, pi. 5, fig. 171, Dec, 



1S33. 

 Terebra mnltiplicata H. C. I<ea, Am. Jour. vSci., vol. 40, p. loi, pi. 



I, fig. 19, 1840. 

 Terebrifusus anioemis Con., Am. Jr. Conch., vol. i, p. 28, 1865. 

 Terebrifusus ainceuus Coss., Ann. Geol. et Pal.. 1893, p. 37, pi. 2, 



fig. 14. 

 Terebrifusus amcevius Aid., Bull. Am. Pal., vol. r, p. 62, pi. 2, lig. 



15. 1895- 

 Conrad's original description. —''Subulate, with about six 

 slightly convex volutions ; with di.stant obtuse longitudinal ribs, 

 and acute prominent equidistant spiral strise ; aperture con- 



