THE NAUTILUS. 105 



NOTICES OF NEW PUBLICATIONS. 



CONTRIBUTIONS TO THE TERTIARY FAUNA OF FLORIDA. TRANS- 

 ACTIONS OF THE WAGNER FREE INSTITUTE OF SCIENCE. Vol. 

 Ill, part 3. By Wni. H. Dall, A. M. This forms an introductory 

 chapter to Prof. Dall's work on the Tertiary Pelecypoda of Florida, 

 and contains a new classification of the Pelecypoda, with an enum- 

 eration of the differential characters of the Orders, Suborders, Super- 

 families and Families, a statement of their range in geological time 



o o o 



and tin enumeration under each family of the chief generic groups 

 believed to be referable to it. The paper is prefaced by a brief dis- 

 cussion of the features of the Pelecypod organization chiefly avail- 

 able as diagnostic characters. Continued .-tudv of this group has 

 confirmed the author in the opinion that in its general features the 

 classification which he proposed in 1889 (founded largely on the 

 characters of the hinge, see Amer. Jour. Sci.. XXXVIII, 445), and 

 has now revised, comes nearer to meeting the requirements of the m>e 

 than any other which has fallen under his notice. In describing 

 the ligamental characters the term "resilium" i.< proposed for the 

 so-called " cartilage '' or " internal ligament." The Steinmann 

 Formula, based on the teeth, sockets and resilium, is thoroughly ex- 

 plained. The Pelecypoda are divided into three orders Prionodes- 

 inacea, Anomalodesmacea and Tf/eodesmacea. The first order con- 

 tains thirty-four families, leading factors being So/emj/id/r, Xiini- 

 lidce, Arcidce, Pteriidce, Osfreidtr, Unionidce, Tr/i/oniiJir, Pecteitidoe, 

 Anniniidcr and Mytilidce. Each of the above and of the following 

 families being the typical representatives of a Superfamily. The 

 second Order contains fifteen families, typical ones being Anntini/iir, 

 Clavagellidce, Pornmyidce. The third contains forty-seven families, 

 such as Plenro/ihoridoe f, Astartidce, Cyreuidce, Cm-iiifidn-, Chamidce, 

 HippuritidcB, LucinidoK, Leptonidte, Cardiidw, Tridacnidce, Isocar- 

 diidcE, Veneridce, Tellinidce, Solenidce, Mactridte, Myacidai and 

 Pholadidce. The paper is concluded with some timely notes on 

 nomenclature. 0. W. J. 



CATALOGUE OF THE MARINE MOLLUSKS OF JAPAN, COLLECTED 

 BY FREDERICK STEARNS. By H. A. Pilsbry. Detroit: F. Stearns, 

 1895. 8 vo, 214pp. and 11 plates. 



Every one interested in geographical distribution, or in the fauna 

 of eastern Asia, will be grateful for the liberality of Mr. Stearns, 

 who obtained, and the care of Mr. Pilsbry, who has enumerated and 

 identified, the large collection here treated of. 



