518 K. J. L. GUPPY OX THE MIOCENE FOSSILS OF HAITI. 



this species having thick walls. Three other species are named by 

 Prof. Gabb ; but I cannot refer the specimens in the Geological So- 

 ciety's collection to more than two species, one of which is named 

 below. 



2. Dentalium mississipense, Conrad. 



This is very like, if not identical with, D. Kiclcxii of the Belgian 

 Miocene. 



3. Bulla paupeecula, Sow. G. J. vol. vi. p. 32. 



This, and B. Vendryesiana, may be regarded as probably marked 

 forms of B. striata, Brug. 



4. Bulla gkanosa, Sow. G. J", vol. vi. p. 51, pi. x. fig. 10. 



5. Yolvula cylindeica, Gabb, Trans. Amer. Phil. Soc. vol. xv. 



p. 246. 



6. Toknatina coix-laceyma, Guppy, Geol. Mag. 1867, p. 500, fig. 3. 

 T. recta, Gabb, I. c. p. 246 (as of D'Orb.). 



The same species occurs in the Miocene of Trinidad and Jamaica. 

 T. cancdiculata, T. olivula and T. recta, D'Orb., which may all be 

 synonymous, are nearly related to our fossil. 



7. Cylichna bldentata, D'Orb. Moll. Cuba, pi. iv. figs. 13-16. 

 This is erected into a new genus, Cylichnella, by Gabb ; but I do 



not concur in the necessity of that proceeding. An allied but larger 

 species (C. ovum-laccrti, Guppy) is found in the Eocene of Trinidad. 



8. Toknatella (Action) cubensis, Gabb. 



This may be identical with the shell I have described as T. textilis 

 (Geol. Mag. 1874, p. 407, pi. xvi. fig. 4) ; but if so, it is distinct from 

 T. punctata, D'Orb., as respects the surface ornamentation, which in 

 T. textilis has more of a cancellate than a punctate character. 



9. Ringicula teidentata, Guppy, Geol. Mag. 1874, p. 406. 



The specimens identified by Gabb as R. semistriata, D'Orb., may 

 belong to this species. 



10. Tuebonilla tueeis, D'Orb. Moll. Cuba, vol. i. p. 219, pi xvi 



figs. 10-13. 

 A very variable species, found also in the Miocene of Jamaica and 

 Pliocene of Trinidad. Other forms of the same have been described 

 by D'Orbigny as modesta, ornata, and pulchella ; and I believe that 

 T. dominicensis, angusta, and pertenuis of Gabb may be placed in 

 the same category. 



11. Natica caneena, Linn. 



12. Natica sulcata, Born. 



