1913.] NATURAL SCIENCES OF PHILADELPHIA. 21 



Fig. 4. — Lucidella granulosa C. B. Adams. A form with the last whorl smooth, 



from Somerset. 

 Fig. 5. — A specimen of the same species from Somerset, which shows the 



tuberculated keel as in figs. 1-3. 

 Fig. 6. — A specimen of the same species from Somerset Road colony with nearly 



smooth last whorl, but showing the tuberculation on the earlier whorls. 

 Figs. 7-9. — Three specimens of L. granulosa from Somerset, with smooth last 



whorl. Figs. 7 and 9 show two common color patterns. 

 Fig. 10. — A specimen of L. granulosa rom Somerset Road, with smooth last 



whorl. 

 Figs. 11, 12. — Two of the dwarfed forms ot L. granulosa from the Sturridge 



place. Both show the granulated periphery of the last whorl. 

 Figs. 13-15. — Three of the dwarfed specimens of L. granulosa from the Kendal 



Road colony. They all show the granulated periphery. 

 Figs. 16-18. — Lucidella aureola (Fer.) from Somerset, showing the rather large, 



normal form of this species as found at this locality. 

 Figs. 19-21. — Lucidella aureola (Fer.) from the Santa Cruz Road, showing the 



smaller size of the specimens from this station as compared with those from 



Somerset. 

 Fig. 22. — Lucidella aureola (Fer.) from Orange Hill, Montego Bay; the form 



with tuberculate periphery. 

 Figs. 23, 24. — Lucidella aureola (Fer.) from Orange Hill, Montego Bay, the shell 



seen from above and from the under side. 

 Figs. 25, 26.^ — Lucidella aureola (Fer.) from Orange Hill, Montego Bay, each 



showing the tuberculate periphery of the form for which the varietal name 



of Montegoensis is suggested. 



