BIBLIOGRAPHY. 287 



genera Neritula and Desmoulea are retained, and the following 

 fossil genera and subgenera are retained: — Molopophorus Gabb, 

 Ptychosalpinx Gill, Paranassa Conrad, and Tritiaria Conrad. 

 Leiodomus Swainson, is considered as synonymous with Pseudo- 

 strombus Klein. 



Fifteen plates, containing 278 figures, accompany this part, 

 which carries us to the commencement of the genus Neritula. 



Les Mollusques Marins du Rousillon. Descriptions et 

 synonymie. (The Marine Mollusca of Rousillon, France, with 

 descriptions and synonymy). — By MM. E. Bucquoy and Ph. 

 Dautzenberg. Fascicule i. 



The first part of this beautiful work, which treats upon the 

 genera Murex, Pisania, Ranella, Triton., Cancellaria, Hadriana, 

 Fusus, Euthria and Trophon., and is accompanied by five 

 excellent plates photographed from nature, is now before us. In 

 addition to these purely conchological matters, there is an able 

 article upon scientific nomenclature by M. G. F. Dollfus, a well 

 known scientist. 



Rousillon, the locality treated upon in this work, lies on the 

 east of the department Pyrenees Orientales, and the diversified 

 nature of the coast fully explains the great richness of the mol- 

 luscan fauna. 



The genus Murex is first considered, and 6 species are given 

 as occurring at Rousillon. M. Blai?ivillei Payr., is referred to a 

 new subgenus Muricopsis Buc. et Dautz., and Coralli?iia is also 

 established for M. aciculatus Lamk. A new genus (Hadtiania) 

 is established for Murex craticulatus Brocchi. 



The synonymy given under each species is very full, and the 

 varieties known are fully particularized and often described. 

 The geographical distribution of each species is given, and its 

 geological position. 



