H. A. Pilshry — Air-breathing 3IoUusks of the Bermudas. 509 



Melampus redfieldii. Common ; borders of mangrove swamps. 

 *Pedipes tridens. Kot uncommon. 

 *Alexia bermudensis. Common under stones ; borders of mangrove swamps. 



1881. — Bland, in Wallace's Island Life, p. 256, gives a list witli the following species 

 additional to his list of 1861. Most of them were included in Jones' list 

 of 1876. 



Hyalina discrepans. Helix pulchella. 



Hyalina nelsoni. Patula reiniana. 

 Pupa barbadensis. " hypolepta. 



Helix appressa. Stenogyra octona. 



1884. — An Account of the Land and Freshwater MoUusca collected during the 



Voyage of the 'Challenger,' P. Z. S., Lond., p. 276. By E. A. Smith. 



Eight common species were obtained by the 'Challenger,' in 1873, and 



Amalia gagates is recorded for the first time. 

 1889. — On the Helicoid Land Mollusks of Bermuda, by H. A. Pilsbry, in Proc. Acad. 



Nat. Sci. Phila., 1888, pp. 285-291, pi. xvii. 

 Deals chiefly with Poecilozonites, which is anatomically characterized. Reprinted 



in Heilprin's The Bermuda Islands, pp. 191-201, pi. 16. 

 1889. — The Bermuda Islands, by Angelo Heilprin. Land Mollusks on pp. 181-184. 



In addition to the forms enumerated by Jones, Kobelt, Fischer 

 and by Bland in Wallace, the following are given as occurring in 

 Bermuda. 



Bulimulus decoUatus L. (= Rumina) 



Melampus pusillus G-mel. (erroneous identification). 



" (Tralia; cingulatus Pfr. (erroneous identification). 



Truncatella caribseensis Sow. 

 Onchidium transatlanticum Heilpr. (= 0. Jioridanum). 



EXPLANATION OF PLATE LXIL 

 All the figures were drawn by Mr. Alpheus H. Verrill except figures 2a, 2b, 6, 7, 8, 

 whicli were drawn by the author, and 16, 17 which are from Binney's Gould. 

 Figure la, 16. — Thysanophora vortex. x 5^. 

 Figure 2a, 2b. — Thysanophora hypolepta. x 10. 

 Figure 3. — Polygyra microdonta. x 3. 

 Figure 4. — Subulina octona. x 2. 

 Figure 5. — Opeas swiftianum. x 2^. 

 Figure 6. — Pupa servilis. x 12. 

 Figure 7. — Pupa jamaicensis.. x 12. 

 Figure 8. — Pupa rupicola. x 12. 

 Figure 9, 9a. — Paicilozonites circumfirmatus. x 2-^. 

 Figure 10. — Pedipes tridens. x 15. 

 Figure 11. — Plecotrema cubense. x 15. 

 Figure 12. — Truncatella bildbiata. x 10. 

 Figure 13. — Truncatella clatJirus. xlO. 

 Figure 14. — Truncatella caribceensis ; young, x 8. 

 Figure 14a. — The same ; adult, x 8. 

 Figure 15, 15a — Ildicina convexa. x 2^. 

 Figure 16. — Pupoides marginatus. x%\. 

 Figure \1.—Zonitoides minusculus. x 4. 



