166 VOLUTID^. 



But the most strongly distinguishing character is tlie entire 

 absence of the irregularly rounded mass at the apex of the shell, 

 one of the best characters of Fulgoraria. Cretaceous of United 

 States, Europe and India. V. Navar7-oensis, Gabb. (liv, 26). 

 California. 



VOLUTOMORPHA, Gabb. Shell elongate, fusiform ; whorls can- 

 cellated by longitudinal and revolving ribs ; columella with one 

 very oblique fold, and sometimes one or more smaller secondary 

 folds. V. Gonradi, Gabb (liv, 29). A cast. Cretaceous ; New 

 Jersey. 



ROSTELLiTES, Courad. Narrow, subulate, with elongated spire, 

 numerous subequal plaits on the columella, and the outer lip 

 somewhat expanded anteriorly, V. Texana^ Conr. (liv, 28). 

 Cretaceous ; Texas. 



voLUTirusus, Conrad. (Megai)tygma, Conr.) Fusiform ; body- 

 whorl finely striated or smooth, with the exception of the 

 shoulder, which is sometimes tuberculated ; columella plaited, 

 folds two to three, sometimes very prominent, oblique ; apex 

 papillated ; initial whorl acute, subspiral, narrow ; beak produced, 

 recurved or sinuous. Miocene of Europe and America. V. typus, 

 Conrad (liv, 29). North Carolina. 



ATHLETA, Conrad. Ovate, Yoluta-shaped ; spire short, acute ; 

 columella with plaits as in Yoluta ; a callus projecting on the 

 shoulder, and covering a portion of the spire. Cretaceous ; 

 Miocene of Europe. V. Tuomeyi, Conrad (liv, 30). Mississippi. 



LEiODERMA, Courad. Shell largely covered with enamel ; with 

 very oblique columellar folds ; outer lip somewhat emarginate 

 on the upper part to its junction with the bodj^'-whorl ; base 

 deeply emarginate. V. leioderma, Conrad (liv, 31). Cretaceous ; 

 Mississippi. 



PTYCHORis, Gabb. Differs from Athleta in the want of the 

 characteristic callus, in being subglobular instead of subfusiform 

 and angulated, with very oblique folds on the anterior part of 

 the columella. V. purpuriformis,¥orhes (Uy, B2\ Cretaceous; 

 India. 



[ficulopsis, Stoliczka, referred by him to the Yolutidse, is a 

 Ficns with the addition of columellar folds. I agree with Mr. 

 Gabb in including it in the Ficulidas = Pyrulidse.] 



PLEIOPTYGMA, Conrad. Subfusiform ; aperture long ; columella 

 with very oblique plaits, numerous, alternated in size, or irreg- 

 ular ; the largest iDeing the second one from above. V. Caroli- 

 wensis, Conrad (liv, 33). Miocene; South Carolina. 



CRYPTOCHORDA, Morch. Shell smooth, Yolutiform, enameled; 

 columella without plications. Tertiary. Seems to connect 

 Yoluta with Harpa. V. stromboides, Gmel. (liv, 34). Tertiary ; 

 France. 

 . GOSAViA, Stoliczka. Shell convolute, spire turbinated, last 



