94 THE NAUTILUS. 



CONTRIBUTIONS TO THE TERTIARY FAUNA OF FLORIDA. By 

 Wm. H. Dall. Trans. Wagner Free Institute of Science, Philadel- 

 phia, vol. iii, pt. vi. 



This constitutes the concluding part of Dr. Ball's extensive work. 

 The entire volume (iii) comprising 1654 pages and 60 plates, consti- 

 tuting the most valuable and exhaustive treatise on the American 

 Tertiary fauna ever presented, and forming a work indispensable 

 both to the conchologist and palaeontologist. 



Parts I and II are devoted to the Gastropoda, and the remaining 

 parts to the Pelecypods, Part III being given up entirely to a new 

 classification of the latter. All the parts as they have appeared have 

 been reviewed in the pages of THE NAUTILUS. 



The present work takes up the family Veneridtz, with a history of 

 the various generic names employed ; most of the changes in nomen- 

 clature have, however, been noted in the " Synopsis of the Veneridse" 

 (Proc. U. S. Nat. Mus., xxvi, 335), but this work in many cases 

 covers the ground more thoroughly, giving the complete generic and 

 specific synonomy of many of the recent forms which extend into the 

 tertiary. 41 new species are described. 



In the family Lucinidse there are 33 new species, and in the 

 Chamidse seven. The subgenus Echinochama Fischer is given gen- 

 eric rank. The family Carditidse is also well represented in the ter- 

 tiary, 18 new species being described. The Cyrenidse contains sev- 

 eral new forms, the section Cyrenodonax Dall., the type of which, C. 

 formosana Dall, n. sp., " Recent in Formosa, at the mouth of the 

 Tamsui River," is described in a foot-note. Miodontopsis is proposed 

 for Miodon Sandberger 1870, not of Carpenter, 1865. 7' geria Roissy 

 is adopted in place of Galatea Brug. (Galathea Lam.) 1803, not 

 Fabr. 1793. Type G. radiata Lam. 



In regard to the small fresh-water forms usually referred to the 

 Cyrenida, Dr. Dall says: ''While closely related, it seems more 

 convenient to place Sphaerium and Corneocyclas (= Pisidium Pfeif- 

 fer) in a separate family," Sphaeriidce. 



Crassatellites Kriiger 1823, which supplants CrassateUa^Lnm. 1801, 

 not of Lam. Prodotne 1799, is largely represented in the American 

 tertiary. The recent C.floridana Dall, described from a young shell, 

 proves to be the same as C. ff/bbesit T. & H. Crassinella Guppy is 

 given only subgeneric standing. C. lunulatus Conr. is restricted to the 

 fossil, the recent form being C- mactracea Linsley. 



