So Cincinnati Society of Naitiral History. 



several slight differences which sliould be noted. The type is 

 broader and shorter than ordinary specimens, but the canal ap- 

 pears to be worn, the revolving lines are the same, the outer 

 lip the same, and both forms have the same number of whorls. 

 In the type no varices ajipear on the body whorl or the next 

 preceding, but are present on all the others. This variation 

 also occurs in specimens in my cabinet. 



Conrad made a new genus to accommodate this shell "Ran- 

 ellina" ; but it must also be expunged, as the species is a typical 

 Triton. No specific or generic description was ever published by- 

 Conrad, but he figured the species under his name in No. 3, 

 2d ed. of his Fossil Shells of the Tertiary. PI. 18, fig. 9, 



1835- 



2. FUSUS TORTILIS, Whitf'd. 



This species has the form of typical Fiisiis in its long straight 

 canal but the folds (two in number) upon the columella must re- 

 move it to Fasciolaria, the straight canal makes even this opposi- 

 tion doubtful. The locality where the type is most abundant is 

 Mathews Landing bed, Alabama, in the lower Tertiary. 



3. PSEUDOLIRA ELLIPTICA, Whitf'd. 



The locality given by Whitfield is no doubt incorrect. The 

 shell is described from a single specimen. An examination o' the 

 contents of the interior of the type showed a light colored sand 

 exactly similar to that in my specimens collected from Bells Ldg. , 

 Alabama, on the Alabama River. The type is a half grown form. 



4. MoNOPTYt;MA LEAI, Whitf'd. 



This very handsome species of the genus, instituted by the late 

 Isaac Lea, is only known from the lower Claibornian beds at Lisbon 

 Ala., and should be located in this horizon by the similarity of the 

 very peculiar sand found in the types. The specimen figured is 

 a young shell; examples over two inches long are in my possession. 



5. MiTRA HALEANUS, Whitf'd. 



Is also from Lisbon Ala., a young shell used as the type con- 

 tains Lisbon sand. It is probably a Volute. 



6. MiTRA BICONICA, Whitf'd. 



Occurs at Lisbon Ala., in Miss., and in Texas. It is a Pleu- 

 rotomid and should be put into the subgenus Cordicra Ronalt. 



7. Cerithium vinctum, Whitf'd. Is also a Lisbon species. The 

 figured type is a young shell and badly worn. The mature form 



