256: AMERICAN JOURNAL 



CONULUS, Fitz 



a. Diam.=2l — 3 mill. 



1. Conulus chersina, Say. 



Plate 4, figure 37. 



Wliorls 5 — 6, convex, sub-conical, thin, pellucid, smooth^ 

 shinino", amber-colored, suture well impressed ; aperture nar- 

 rowly transverse, base convex, indented around the closed 

 umbilicus. 



Diam. 2|, height 2 mill. 



The whole country westward to Rocky Mountains ; San 

 Gorgonio Pass, Los Angelos Co., California. 



This shell is not the C.fulva, of Europe, with which it has 

 been confounded ; the differences pointed out by Mr. Morse, in 

 his "Shells of Maine," appear to be constant. 



2. Conulus Fabricii, Beck. 



Plate 4, figure 38. 

 Whorls 6, convex, sub-conical, apex rather acute, suture 

 profound ; whorls striate, narrow, last whorl wider, base con- 

 vex, impressed at the axis, which is nearly imperforate; aper- 

 ture transversely lunar ; color fulvous, pellucid. 

 Greenland. 

 Scarcely distinguished from No. 1 by the sub-perforate 

 umbilicus. 



3. Conulus Gundlachi, Pfeiffer. 



Plate 4, figure C4. 

 Turbinate, shining, fulvous ; whorls 5, convex, the last sub- 

 planulate at base, excavated around the perforation, faintly 

 marked with revolving lines; aperture depressed lunar. 



Diam. 2|, height If mill. 



Florida, Cuba. 

 More depressed than No. 2. Differs from No. 1 in the per- 

 forate axis. 



