88 Bulletin 39 



inner lip not strongly calloused. Lenght up to 

 45 mm. O. vtancineUa, n. sp. 

 EB. Spire shorter, about 1-4 of the length of the 

 shell; inner lip usually strongly callused. 

 Length about 40 mm. 



O testacea var. costaricensis, n. var. 



Oiiva CylJndrica Sowerby Plate 7, figure i 



Oliva cylindrica Sowerb}^, 1849, Quart Jour. Geol. Soc. Ivondou, vol. 



6, p. 45- 

 Oliva reticularis Gupp}-, 1866, Quart. Journ. Geol. Soc. lyondon, vol. 



22, p. 2S8,. Not of Lamarck. 

 Oliva cylindrica Gabb, 1873, Trans. Amer. Phil. Soc, vol. 15, p. 



215. 

 Oliva cylindrica Guppy, 1876, Quart. Journ. Geol. Soc. London, vol, 



32, P- 526. 

 Oliva cyli?idrica Dall, 1903, Trans. Wagner Free Inst. Sci., vol. 3, pt. 



6, p. 1583. 

 Oliva cylindrica Cossmann, 1913, Journ. de Conchyliologie, vol. 61, p. 



57, P^- 5, figs. 2, 3. 

 Oliva cylindrica Maury, Bull. Amer. Pal., vol. 5, p. 231, pi. 10, figs. 



14, 14a. 



A single, large specimen from Costa Rica, is doubtfull}^ re- 

 ferred to this Dominican Miocene fossil. It differs from the more 

 common brevispira by its larger size and longer, more conic 

 spire. This shell is also closely related to the recent O. araneosa 

 Lamarck of the West Coast. 



Length 47, diameter 19 mm. 



Gatun Stage: Upper Gatic?i beds, i mile south of shore, alon;; 

 Old Man Sajii Creek , C. R. 



Oliva brevispira Gabb Plate 7, figures 2, 3, 4 



Oliva brevispira Gabb, 1873, Trans. Amer. Phil. Soc, vol. 15, p. 



215. 

 Oliva brevispira Maury, 1917, Bull. Amer. Pal., vol. 5 p. 232, pi. 10, 



figs. 16, 17. 



