1885.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 271 



pearecl, forming part of Ramon de la Sagra's Plistoria de Cuba. The 

 whole work was not finislied until 1853, but the earlier parts appeared 

 at intervals. In this D'Orbiguy described Helix Lavalleana and //. Mau- 

 rl/iiana, but by an accident the numbers of the figures were transposed 

 on the i)late. Later Pfeifier identified his Helix saxicola with H. Laval- 

 leana D'Orbigny, and his if. Boothiana with H. Mauriniana, though the 

 confusion of the numbers of the figures renders a little study necessary 

 to make this clear. Still later W. Gr. Binney identified his father's 

 H. mimiscula with H. Lavalleana as correctly understood. Now, two 

 things which are equal to the same thing being equal to each other, it 

 follows that H. minuscula, if the above identifications be correct, is the 

 same as H. saxicola and synonymous with it, as saxicola appears to be 

 the older name. Until the identifications are a little more clearly es- 

 tablished it will probably be better to retain Dr. Binney 's widely known 

 and accepted name. 



Albers states that H. apex Adams cannot be united with mimiscula^ 

 being distinguished by its size and by fine spiral sculpture. A nearer 

 relative of H. apex is H. hypolepia Shuttleworth (1854). 



The diagnosis of Microphysa, which, on the whole, seems poorly, if at 

 all, distinguished from Hyalina, precludes the inclusion with it of such 

 shells as Conulus sfearnsi Bland and Gastrodonta (?) Lansingi Bland, as 

 Mr. W. G-. Binney has recently suggested. The more we learn about 

 the characters of the soft parts, shell, and dentition of these land shells 

 the more evident it becomes that many of these groups are unnecessary 

 and might better be dispensed with. The series inosculate on every 

 side. 



Zouites (Conulus) chersinus Say. 



Helix chersina Say (1821), Binney, 1. c, p. 125 {asfulvus). 



Habitat — Alaska to Florida, Fort Churchill, Hudson Bay territory 

 (Turner), to California and Texas. Typical, Fernandina, Hemphill; 

 Archer, Alachua County, Dall; var. egena, Cedar Keys, Hemphill. 



This species will probably be found identical with Z. fulvus, but as 

 the name oi fulvus is not incontested, and there seems to be some dis- 

 crepancy in observations of the soft parts, I prefer to retain Say's name. 

 The shells are larger and finer when from the north. The finest I have 

 seen are from Arctic America. The name Fabricii of Beck and Moller 

 is doubtless synonymous. 



Zonites (Gastrodonta) suppressus Say. 



Helix suppressus Say (1829), Binney, 1. c, p. 130. 



Habitat. — Michigan and i^ew England to Florida, Binney; Fernan- 

 dina, Hemphill. 



Genus Succinea. 



Of this genus, S. canipestris Say is the most common and globose 

 species of Florida. 1 have it from Key West, Palatka, and Fernandina. 



