Binney on Terrestrial Mollusks. 5a 



as doubtful. Deshayes says that its anatomical details 

 will decide the question. The dissections of Dr. Leidy 

 have already done so. 



The species occurs in Georgia. 



HELIX DENTIFERA Binney vol. ii. p. 134, pi. xii. 



HeUx denti/era DeKay, X. Y. Moll. p. 34, pi. ii. fig. 17. 



Mrs. Gkay, Fig. of Moll. An. pi. cxci. fig. 11. 

 nee Ffeiffek, vol. iii. 

 nee Chemnitz. 



This is not the denti/era described by Pfeiffer in the 

 third volume of his Monograph, and the second edition of 

 Chemnitz. The species there described and figured is 

 H. Roemeri, confounded by Pfeiffer with denti/era. Its 

 distinguishing features are pointed out in the succeeding 

 article. A copy of Binney's descriptions is given in Mon. 

 Hel. Viv. i. 



It is a mountain shell, has been found by Mr. Edv/ards 

 in Virginia, Dr. S. E. ShurtlefF in Western Pennsylvania, 

 Mr. Conrad at Broad Top Mountain and Mr. Phillips on 

 the Lehigh. Also in Maine, (E. S. Morse). 



HELIX ROEMERI Pfeiffer. 

 Plate LXXVII. Figure 3. 



T. anguste umbilicata, depressa, tenul, confertim striatula, diaphana, 

 vi.x nitidula, sordide carnea, spira vix elevata ; sutura leviter impressa ; 

 anfr. 5 convexiusculis, ultimo peripheria subangulato ; apei'tura obliqua, 

 luiiari ; peristomate valide albolabiato, margine supcro recto, basali 

 reflexo, ad columullaui in laminatu teuuissiuiam, uuibilicum seuu-occul- 

 tantem dilitato. (Pfeiffer). 



synonyms and references. 



Helix Boemeri Pfeiffer, in Roemer's Texas, p. 455 ; Zeitschr. f. Mai. 1848, p. 

 117. 

 Reeve, Con. Icon. No. 680. 

 Selix dtntiftra Pfeiffer, Mon. Hel. Viv. iii. 269, (excl. Binney et DeKay). 



Chemnitz, ed. 2, ii. 331, pi. cxxxi. figs. 1-3, (Excl. do.) nee 

 Binney. 



