1910.] NATURAL SCIENCES OF PHILADELPHIA. 517 



Thysanophora boothiana (Pfr.) ?. 



Kendal road, 1 mile north of Mandeville; Cedar Hill; Sterridge's 

 place; Lower Santa Cruz road; Somerset road; Somerset. The 

 identity of this shell with the Cuban T. boothiana is doubtful, but it 

 is apparently what Adams so identified. 



Thysanophora anthoniana (C. B. Ad.). 

 Somerset. 



Thysanophora epistyliulum (C. B. Ad.). 



Woods at Benmore, Mandeville; woods opposite Cedar Hill; Somer- 

 set. 

 Thysanophora inconspicua(C. B. Ad.). 



Near Mandeville. 



Thysanophora diminuta (C. B. Ad.). 



Near Mandeville ; ridge near Lincoln. 

 Thysanophora dioscoricola (C. B. Ad.). 



Near Mandeville. 

 Sagda jayana (C. B. Ad.). 



Kendal road, 3^ miles north of Mandeville. Benmore and Bloom- 

 field, Mandeville; woods at King Edward's Hotel; woods opposite 

 Cedar Hill; Garrett's woods; Santa Cruz road, 2-4 miles southwest 

 of Mandeville; ridge near Lincoln; Somerset. 



The young shells at a certain stage are perforate. The two internal 

 lamellae were found constant in a large number opened. It is an 

 extremely abundant species. 



Sagda grandis n. sp. 



Somerset. 



Sagda connectens (C. B. Ad.). 

 Somerset. 



Sagda alveare (C. B. Ad.). 



Somerset and along roadsides near Mandeville. 

 Sagda foremaniana (C. B. Ad.). 



Somerset; ridge near Lincoln. 



Sagda simplex n. sp. 

 Somerset. 



Sagda hollandi (C. B. Ad.). 



Somerset. 



