2fotes on Lingual Dentition of Mollusca. 



285 



An extremelv instructive lingual, sbowino; the mera-jnoj of 

 laterals into uncini more conipletely than in any we have previ- 

 ouslj'' examined. 



Veroiiicella Floridana, Binney. 

 (Terr. Moll. U. S., II., p. 17.) On p. 306 of Land and Fresh- 

 water Shells of North America, Part I., we figured the lingual 



Lingual dentition of V'eronicella FloriJana, }3in. 



dentition of this species, as drawn bj Mr. Morse. We now give 

 a figure drawn by Dr. Leidy for the " Terrestrial Mollusks of the 

 United States,'- but not included in that work. The details of 

 the separate teeth are much more accurately shown in the new 

 figure. It will be noticed that Dr. Leidy gives 58.1. 58 teeth, 

 Mr. Morse 41.1.41, and our text (p. 304) 48.1.48. 



l<iniax flavii^, Linn. 

 A figure of the lingual dentition of this species, drawn bv Dr. 

 Leidy, is also given, for comparison with that of Mr. Morse, on 



Fig. 6. 



Lingual dentition of Limax flaitis, L. 



p. 63 of Land and Fresh-water Shells, Part I. Here also the num- 

 ber of teeth varies, as in Veronicella FloHdana^ described above. 



