215 Costa Rico Miocejnr — Oi^sson 43 



Conus c-atenatiis Guppy, 1876, Quart. Jour. Geol. Soc. London, vol. 32, 



p. 527, in part b 

 Conns stenostomus Dall, 1903, Trans. Wagner Free Inst. Sci., vol. 3, 



pt. 6, p. 1583. 

 Conns stenostomus Maury, 1917, Bull. Amer. Pal., vol. 5. p. 203, pi. 6, 



fig- 4. 



A species characterized by its sharp angulated shoulder, 

 concave tipper surface of its whorls and attenuated anterior can- 

 al. Well-preserved examples showing a highly polished sur- 

 face and traces of yellow blotches of color markings were col- 

 lected quite abundantly in the coralline of Port Limon. The 

 species also occurs in Jamaica and Santo Domingo. 



Gatun Stage: Port Limon. 



Conus COncavitectum Brow^n and Pilsbry 



Conus concavitedtiiu Brown and Pilsbry, 191 1. Proc. Acad. Nat. Sci. 



Phila., vol. 63, p. 341, pi. 23, figs. 5, 6. 

 Conus {Lichoconics) concavitectunt Cossmann, 1813, Jour, de Conchy- 



liologie, vol. 61, p. 43, pi. 4, figs. 3, 4. 



In adult shells, the spire whorls become concave. The 

 species is also recognized b}^ its sharp shoulder and low spire. 

 It may be confused with varieties of prote^is but the sharp should- 

 er angle and spiralled spire whorls will separate it. Our speci- 

 mens come from Water Cay, and measure 48 by 27 mm. 



Gatu7i Stage: Canal Zone and Water Cay. 

 Conus proteuS Hwass Plate 2, figures 3, 4 



Conus proteus Hvi^ass, 1789, Enc. Meth. vers, i pt. 2, p. 682. 

 Conus leoninus Hwass 1789, Enc. Meth. vers, i pt. 2, p. 683. 

 Conus proteus f Gabb, 1873, Trans, Amer. Phil. Soc, vol. 15, p. 232. 

 ? Conus Berg hausii ? Gabb, Idem, p. 232. Not of Hoernes, Foss. Wien. 



Beck. pi. I, fig. 3. 

 Conus leotiinus Gabb, 1881, Jour. Acad. Nat. Sci. Phila., vol. 8, 2nd 



series, p. 359. 



