307 



Costa Rica Miocknk — Oi^sson 



135 



Cassis sulcifera Maury, 1917, Bull. Anier. 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 very 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, Banana River. 



Cassis fiams^ea Ivinnseus 



Buccinuiii flanuneiLm Linnseus, 1758, Syst. Nat., ed. 10, p. 736. 

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

 Cassis flamr,iea 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 v^ith subordinate amounts of clays and sands equiva- 

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

 mostly sand and clays of true Pliocene age. It is most likely 

 that the single example of Cassis fianunea collected by Gabb, 

 was obtained from the upper or Pliocene formation. 



Subgenus PHALfUiVI Link 



Phalium moniliferum Guppy Plate 12, figure 11 



Cassis monilifera Guppy, 1866, Quart. Journ. 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. gra7iulosa 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 monilijera 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; pL 19, fig. I. 



