The late Dr. Charles A. Davis, the well known peat-expert of the U. S. Bureau of Mines, in addition to his special acquirements in geology and botany, was a good all-round zoologist and had a lively and unaffected interest in the work that any of his friends might be carrying on in that department. It was his kindly habit in his travels about the country to preserve any specimens that he came across that seemed to him likely to be of interest to any of his zoological friends. It will be remembered that the conchologists owe to him the rediscovery of the long lost _Planorbis multivolvis_ Case, (NAUT., XXI, p. 16), and also the little _Lymnæa davisi_ Walker, (NAUT. XXII, p. 17), which bears his name. In the spring of 1911 Dr. Davis’ professional duties took him to Florida and while there he collected quite a number of samples of “drift,” which in due time came into my possession. Several of the localities represented in the collection, such as Miami and St. Augustine, have already been reported upon by previous collectors and there seems to be no occasion to duplicate their work, but quite a number of the places visited by Dr. Davis have not been covered by any of the previous collectors in Florida and a record of the species found by him seems worthy of publication as a contribution to the distribution of the Mollusca along the east coast of the state. I am indebted to Dr. George H. Clapp for the identification of the Gastrocoptas and Vertigos. The list of localities and species represented in the collection is as follows: MARSHES NEAR CHESTER SHOALS. _Euglandina rosea_ Fér. _Polygyra cereolus carpenteriana_ Bld. _Zonitoides minuscula_ (Binn.). _Zonitoides minuscula alachuana_ (Dall). _Vitrea dalliana_ (‘Simpson’ Pils.). _Pupoides modicus_ (Pfr.). _Gastrocopta rupicola_ (Say). _Gastrocopta pellucida hordeacella_ (Pils.). _Gastrocopta tappaniana_ (C. B. Ads.)? _Gastrocopta pentodon_ (Say). _Vertigo milium_ (Gld.). _Melampus coffeus_ (L.). _Detracia bulloides_ (Mont.). _Chrondropoma dentatum_ (Say). _Plecotrema cubense_ (Pfr.). _Blauneria heteroclita_ (Mont.). _Microtralia minuscula_ (Dall). _Truncatella clathrus_ Lowe. _Truncatella caribæensis pulchella_ Pfr. _Truncatella bilabiata_ Pfr. _Littoridina monroensis_ (Ffld.). _Paludestrina?_ sp.? A single specimen that I can not approximate to any of the described species. This is the first record, I believe, for _Plecotrema cubense_ from the mainland of Florida. Originally described from Cuba, it was listed from the Bermudas by Dr. Pilsbry in 1900, (Trans. Conn. Acad., X, p. 504, pl. lxii, fig. 11), and there figured by him for the first time. Both he and Mr. John B. Henderson inform me that they have collected it on several of the Keys and I am indebted to both of them for the opportunity of comparing my specimen with theirs. CHESTER SHOALS REFUGE STATION.