THE NAUTILUS. 71 



Polygyra chiricahuana, Arizona. 

 Polygyra rneamsii, New Mexico. 

 Holospira crossei, pilsbryi, bilamellata, mearnsii, veracruziana, all 



from New Mexico and Mexico. 

 Unio mitchelli Simpson, a Texan species collected by Hon. J. D. 



Mitchell. 

 Cerion pineria, Isle of Piues (S. of Cuba). 



LIST OF DUPLICATES OF JAPANESE SHELLS COLLECTED BY 

 FREDERICK STEARNS (Detroit, 1896). A list for purposes of ex- 

 change, which may be obtained on application by those having 

 shells, echinoderns, corals, etc., to offer for Japanese shells. 



DIAGNOSES OF NEW TERTIARY FOSSILS FROM THE SOUTHERN 

 UNITED STATES. By W. H. Dall (Proc. U. S. Nat. Mus., XVIII, 

 pp. 21-46, 1895). This paper deals mainly with new or misunder- 

 stood species of Bulloid Tectibranchs, of Terebra and of Conus. A 

 new section of Bullina, Abderospira, is proposed for a new Chipola 

 species ; and Wakullinn is a new subgenus of Cantraiue's genus 

 Carolia. A general discussion of the Terebridte of our tertiaries 

 precedes the descriptions of new forms. The preliminary remarks 

 under Conus have a vastly wider application than to the particular 

 genus under discussion, and cut at the root of a false method in 

 much paleontologic work of both hemispheres. We refer more 

 especially to this paragraph. The italics are our own : " The gen, 

 eral rule that local faunae are derived from pre-existing faunce of the 

 same general region is a good guide, and a careful comparison of the 

 fossils with the recent types will often assist materially in determin- 

 ing the relations of fossil forms. The identifications which travel to 

 distant fatince for representatives as, for instance, the Indo-Pacific 

 fauna for Haitian fossils are usually wrong, and all Gabb's identi- 

 fications of this sort will be modified by further and more careful 

 study. Analogous characteristics are often purely dynamic informs of 

 different lineage, subjected to similar conditions, in widely separated 

 localities. Where modern fauna differ in the races of any genus 

 which they contain, the antecedent fossils in the same regions are 

 not likely to be much more nearly related." We have, for some 

 years, been endeavoring to persuade our German friends of the 

 truth of this general doctrine as applied to their tertiary land snails, 

 but without much success thus far ; so that it is peculiarly refreshing 

 to find an acknowledged master stating the result of his broad experi- 

 ence in other groups, in diction so unequivocal as the above extract. 



