OF SANTO DOMINGO. 



223 



This is not the same species as described by Conrad, from Yicksbiirg, although 

 (Proc. Phil. Acad., 1852, p. 199,) he states that he considers them identical. 



MORUM. Bolt. - 



M. Domigeiisis. Sby., sp. 



Oniscia Domigemw. Sby., Quart. Jour., Vol. VI., p. 47, jjI. 10, fig. 3. 



Very different fi'om Oniscia liarpula, Con., from the Yicksbni'g Eocene, although 

 Mr. Conrad has asserted their indentity. 



MALEA. Val. 



M . r i n g e n s . Swains. - > 



Cassis ringens. Sw., Eligh. Cet. . ■ ■ 



Malea. Id., H. and H. Ad., Gen. Rec. Moll. 



Dolium. Id., Rve. Icon., sp. 5. • ■ , ' 



Malea latilahris. Val. • ; : , ■ ' i ■ 



M. camura, Guppy. Quart. Jour., Geol. Soc. Vol. XXII, p. 287, pi. 17, fig. 9. 



Both the typical form and Valenciennes variety occur fossil in Santo Domingo. 



FICUS. Bolt. 



F . p a p y r a t i a . Say. 



Pyrula papyratia. Say. Jou^r. Phil. Acad., 1 ser.. Vol. II., p. 228. 



Sycotypus papyracea, Stimpson, Sw. Check List. ■ - 



Id. H. and A. Ad., Gen. Rec. MoU. ', , • 



A single good and one poor specimen found. . : r, 



F. Mississippiensis. Con., Jom\ Phil. Acad., 2 ser.. Vol. I., p. 117. . 

 Ficula Carbasea, Guppy. Quart. Jour., Vol. XVII., p. 580, \)\. 26, fig. 7. 



I have compared Mr. Gnppy's shell with Mr. Conrad's original specimens from 

 Viclvsburg, Mississippi, and find them indentical in form and sculpture. I am by no 

 means sure that this should not be considered the same as F. decussatus (^F. Ven- 

 tricosus) the common west coast Mexican form. 



NATICA. Linn. 



N. c a n r 6 u a . Linn. Mus.. p. 674. 



A common West Indian shell. The callus in the umbilicus seems smaller in the 

 recent specimens, but not sufficiently different to warrant a separation. 



N. sulcata. Born., Mus. Cses., pi. 17, fig. 5, 6. 



Id., Guppy. Quart. Jour. Vol. XXII., p. 290, pi. 18, fig. 14, 15. 



T have both shell and operculum of this and the preceding species, besides a 

 third species of operculum about which I am in doubt. 



MAMMILLA. Schuni. 



M. mamillaris. Lam. sp.; Natica id.. Lam., A. S. V., Vol. VIII., p. 628. 

 Id., Guppy. Quart. Jour., Vol. XXII., p. 291. 

 N. suhclausa, Sby. Quart. Jour., Vol. VI., p. 51. 



I cannot find sufficient grounds for separation of suiclansn from the Laninrckian 

 species. 



