307 Costa Rica Miocene — Olsson 135 



Cassis suldfera Maury, 1917, Bull. Amer. Pal., vol. 5, p. 274, pi. 18, 

 figs. I, 2. 3. 



This is a large species very common in Miocene rocks of 

 Santo Domingo but ver}- rare in Costa Rica. Our record is bas- 

 ed on a single imperfect specimen from the Banana River and for 

 a figure of this species the reader is referred to Dr. Maury's Do- 

 minican Fossils. 



Gatun Stage: Hill No. j, Banajia River. 



Cassis flamiinea Linnseus 



Bucchium flannneiivi Linnseus, 1758, Syst. Nat., ed. 10, p. 736. 

 Cassis Jlaimiiea Reeve, 1848, Conch. Icon., vol. 5, pi. 5, fig. 12. 

 Cassis flammea Gabb, 1881, Journ. Acad. Nat. Sci. Phila., vol. 8, 2nd 

 series, p. 356. 



This is a recent species recorded by Gabb, from his so-called 

 Pliocene clay beds of Costa Rica. Under this term, Gabb con- 

 fused two formations, one composed largely of coralline lime- 

 stones but with subordinate amounts of clays and sands equiva- 

 lent in large measure to the Gatun formations, and an overlying, 

 mostl}^ sand and clays of true Pliocene age. It is most likely 

 that the single example of Cassis fianiniea collected by Gabb, 

 was obtained from the upper or Pliocene formation. 



Subgenus PHALIUiV! Link 



Phalium moniliferum Guppy Plate 12, figure 11 



Cassis tnonilifera Guppy, 1866, Quart. Jouru. Geol. Soc. London, vol. 



22, p. 287, pi. 17, fig. 8. 

 Casidea granulosa Gabb, 1873, Trans. Amer. Phil. Soc, vol. 15, p. 222. 



Not C. granulosa Bruguiere. 

 Cassis reclusa Guppy, 1874, Geol. Mag., London, pp. 434, 439. 

 Cassis reclusa Guppy, 1876, Quart. Journ. Geol. Soc. London, vol. 32, 



P- 525- 

 Cassis inonilijera Guppy, 1876, Quart. Journ. Geol. Soc. London, vol. 



32, p. 525- 

 Phalium moniliferum Maury, 1917, Bull. Amer. Pal., vol. 5, p. 274, pi. 



18, figs. 4, 5; pi. 19, fig. I. 



