33 



THE 



JOURNAL OF CONCHOLOGY. 



Vol. II. APRIL, 1904. No. 2. 



THE FRESHWATER SHELLS OF NAPLES AND THE 

 NEIGHBOURHOOD. 



By Dr. RAFFAELLO BELLINI. 



(Read before the Society, December gth, 1903). 



Information regarding this important and rich section of the local 

 fauna has hitherto been grouped with that concerning the land shells; 

 therefore, so far as we know, there exists no monograph on the sub- 

 ject, and the works in which the freshwater shells of Campania are 

 described have hardly a historical value. Except for the information 

 derived from the work of Philippi^ and Costa^ in the first half of the 

 last century, we have no particulars respecting the shells which abound 

 in the springs and stagnant waters near Naples. This information, 

 moreover, incomplete when published, has now but slight value, as 

 some species have since been excluded and others added ; further, 

 habitats have been changed and nomenclature modified. 



Costa in his "Catalogo dei testacei delle due Sicilie " gives a list of 

 the authors who have dealt with this subject, obviously, however, 

 derived from a different source from the list in his "Fauna del Regno 

 di Napoli." Philippi's classical work is therefore at present the best 

 authority upon the subject. 



1 •' Enumeratio moUuscorum Siciliae," 2 vob, 1836-1844. 



2 "Catalogo dei testacei delle due Sicilie," Napoli, 1829; " Fauna del Regno di Napoli," 

 Napoli, 1839. 



C 



