OF CONCHOLOaY. 285 



DANISH. 



Videnskabelige Meddelelser fra den Nat. Hist. Forening i 

 Kjobenhavn, for Aaret 1863. Copenhagen, 1864. 



Fortegnelse over de i Danmark forekommende Land-og 

 Ferskvandshlbddyr : af o. a. l. morch. 



A very full list of the land and fresh water shells of Den- 

 mark, with synonymy and specific descriptions. The species 

 are arranged in accordance with the most recent classification, 

 and number 129. 



A review of Danish malacological bibliography and a full 

 index are added, making a most valuable work of reference. 

 The work occupies over 100 pages. 



SCIENTIFIC INTELLIGENCE. 



Locality of Navea Newcombii. — Dr. Newcomb informs 

 us that the locality of Navea Newcombii^ stated in our descrip- 

 tion of that species, (p. 39,) is erroneous. The specimens were 

 extracted from a Haiiotis from Lower California. 



On the Distinctive Characters of Bulimus margi- 

 NATUS, AND B, FALLAX. — Mr. Say described (Proceedings 

 Acad. Nat. Sciences, vol. ii., 1821,) a minute pupseform shell, 

 with widely reflected lip, under the name of Cyclostoma mar- 

 ginata; and in 1825 (1. c. v.) he characterized Pupa fallax, 

 and remarks, that "it closely resembles P. marginata, nob., 

 but is much larger, and the labrum is not widely reflected. 

 "When viewed in front, it has a reflected appearance, but the 

 opposite view presents only a very limited excurvature. 

 Length more than three-tenths of an inch." 



In Binney's "Terrestrial Mollusks," the two species are as- 

 serted to be identical, and, inasmuch as Pupa marginata had 

 been previously used by Draparnaud, the species was described 

 and figured as P. fallax, Say. 



Pfeitfer, in the last edition of his " Monograph of the Helices," 

 considers the species identical, and refers them under the first 

 name {marginatus) to the genus Bulimus. W. G. Binney 

 (" Supplement to Terr. Mollusks,") coincides in this reference. 



