6i LiGNiTic Stage 6i 



Trophon sublevis, sn.p., PI. S, fig's, i and 19? 



Specijic cliaract€rizatio7i.—'$)\7.^ and general form as indicated 

 by the figure; whorls seven, embryonic three smooth, spire and 

 body whorl smooth, polished, but with nine .sharp-edged costae 

 on each whorl, becoming somewhat pointed on the shoulder; faint 

 undulations indicating indistnid't, distant .spirals between the ribs; 

 outer lip thickened, with five crenulutions within, the upper the 

 stronger; no umbilicus. 



PI. 8, fig. 19 is a specimen belonging perhaps to a varietal 

 form of this species. The substance of the shell is white, while 

 that of sublevis is horn-color; the humeral points are more dis- 

 tant from the suture above; the shell is comparatively longer; the 

 lip and hence every rib, while seeming to join onto the rib in the 

 whorl above, turns abruptl}^ to the left and joins really onto the 

 next rib in advance. This specimen is from the Lea memorial 

 cjUeclion, from Gregg's landing. 



Locality. — Ala.: Gregg's landing. 



Type and specimen figured. — Paleontological Museum, Cornell 

 University. 



Trophon caudatoides. V\. 8, fig. 2. 



Syn. 7\ caudatoides, Aid., Bull, i, Ala. Geol. Sur. p., 19, pi. 6, fig. 4, 1S86. 



Aldrich's original descriptio)i. — "Shell with numerous varices; 

 whorls .seven, uppermost two smooth, the others angulated by 

 the variceal nodes and crossed by a few revolving lines, which 

 are rather coarse and somewhat alternate; one to four thickened 

 lamelliform varices on different specimens at irregular di.stances 

 apart. Aperture ovate; outer lip expanded and crenate within; 

 columella smooth, twisted below; canal rather abruptly turned to 

 the left. 



''Locality. — Hatchetigbee bluff, Ala." 



One .specimen from the same locality has a much more com- 

 plete .spire, but le.ss complete outer lip. 



Type and specimen figured. — Aldrich's collection. 



