1880. J NATURAL SCIENCES OF PHILADELPHIA. 371 



PSEUDOLIVA, Swainson. 

 Pseudoliva scalina, n. >■]>. PI. 20, lig 12. 



Shell l)iiccinifonn, of about seven volutions ; the whorls rouglily 

 l)licated ; the folds on the bod}' whorl apjiearing as shoulder no- 

 dules ; dentiferous sulcus well pronounced, followed by about five 

 impressed revolving lines, which slightlj' crenulate the margin of 

 the outer lip ; revolving lines on the Ijodj'-whorl above the sulcus 

 almost obsolete ; aperture slightly exceeding the spire in length ; 

 columella callous ; suture deeply channeled. 



Length, H inch. Wood's Blutf, Clarke Co., Ala. 



L.EVIBUCCINUM, Ouna . 

 (Amer. Jour. Couchol., i, p. 21. Genus uot characterized.) 

 Shell having the general form of Metula, H. & A. Adams, but 

 destitute of all traces of a jiosterior canal ; aperture between bucci- 

 niform and fusiform, about the length of the spire. This, genus 

 is distinct from Bucciy^anops of d'Orbigny, under which the Buc- 

 cinnm (Laevibuccinum) prorsum^ Conr., is erroneously classed in 

 the Pi'odrome de Paleontoloc/ie , ii, p. 369. 



Laevibuccinum lineatum, n. s] . PI. 2i', fig. 5. 



Shell fusiform, of about seven convex volutions, which are 

 throughout their whole extent covered by fine, but distinct, re- 

 volving lines ; aperture slightl}^ exceeding the spire in length, 

 sub-canaliculate anteriorly; columella gently arcuate; outer lip 

 striate within. 



Length, 1 inch. Knight's Branch, Clarke Co., Ala. 



This species mainly ditters from the L. prorsum, Conr., in 

 having the revolving lines equally distinct over the entire surface 

 of the whorls. The Murex {Fusus et Buccinum auct.) mitree- 

 f or mis of Brocchi, from the Oligocene and Miocene deposits of 

 France, Austria, and Ital}', is a closely related species. 



FUSUS, Lamarck. 

 Fusus subtenuis, n. .'^p. PI. 20, fig. 4. 



Shell fusiform, of about seven sub-angular volutions ; whorls 

 ornamented with somewhat obscure longitudinal folds, about twelve 

 on the body-whorl, which are cut by several prominent revolvinof 

 ridges commencing at the shoulder angulation ; shoulder of the 

 whorls more or less smooth, with an obscure median revolving line, 

 and a prominent sub-sutural one ; aperture about the length of the 



