Jaw and Lingual Dentition of Pulmonata. 196 
PLATE XV. 
FIG. Lingual dentition of:-- 
A. Helix fringilla, Pfr. See also pl. xiv, fig. A. 
B. Helix Carpenteri, Newe. 
D. Helix pubescens, Pfr. 
Jaw and teeth. 
EK. Patula Cumberlandiana, Lea. 
F. Cylindrella Poeyana, Orb. 
G. Helix Diabloensis, J. G. Coop. ? 
PLATE XVI. 
Fig. Jaw and lingual dentition of :— 
A.B. Bulimulus limneoides, Fer. 
C. Helix cereolus, Muhlf. 
D. E. Helix exoleta, Binney (see p. 178). 
F. Helix rufescens, Penn. 
G. Helix dentiens, Fér. 
H. Trochomorpha Cressida, Gld. 
I. Nanina radians, Pfr. 
PLATE XVII. 
FIG. 6 
J. Cylindrella ornata, G. The central, first and last teeth. 
I-IV. Binneya notabilis. Jaw, animal in half repose, and the central, first, 
sixteenth and last teeth. 
V. Helix Tryoni, Newe. The central, first, eleventh, thirteenth, fourteenth, 
thirty-seventh and last teeth. 
VI. Succinea papillata, Pfr. Central, lateral and marginal. 
VII. Succinea pallida, Pfr. Central and first and fifteenth teeth. 
VIII. Helix Van Nostrandi, Bl. Central, first, tenth, eleventh, nineteenth and 
twenty-fourth teeth. 
IX. Helix facta, Newe. Genitalia. 
X. Helix Tryoni, Newe. Genitalia. 
XI. Helix fallax, Say. Genitalia. 
XII. Helix Van Nostrandi, Bl. Genitalia. 
XIII. Helix facta, Newe. Central, first, fourth, twelfth, thirteenth, seventeenth 
and twenty-sixth teeth. 
XIV. Helix Hopetonensis, Shuttl. Genitalia. 
XV. Helix alternata, Say, var. Genitalia. 
XVI. Endodonta incerta, Mouss. Central, first and last teeth. 
XVII. Patula Huahinensis, Pse. Central, lateral and marginal. 
XVIII. Helix Rugeli, Shuttl Genitalia. 
XIX. Helix tridentata, Say. Genitalia. 
PLATE XVIII. 
Fig. Lingual dentition of:— 
A. Helix Harfordiana, J. G. Coop. 
B. Helix leporina, Gld. 
The right hand figure shows an abnormal first latera.. 
Helix Ingersolli, Bland. 
Limax montanus, Ing. 
Helix auriculata, Say. 
Var. castaneus of D. 
Aviolimax Andersoni, J. G. C.? 
Ariolimax Hemphilli. 
Anadenus. 
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[Printed at the SALEM PRESS, March, 1876.] 
