LIST OF PLATES, VOL. X. 



Plate I. Gramma Loreto. Hypoplectriis maculiferus. 



Plate II. Figs. 1 and 5. Unlimulus laticinctus. 

 " 3. Helix ttirbiniformis. 

 " 3 aud 4. Bulimulus Bahamensis. 

 For explanations see page 82. 

 Plate III. Molgula Manliattensis. 



For explanations see page 91. 

 Plate IV. Tarsus and Embryos of Birds. 

 Plate V. Carptis of Birds. 



For explanations see pages 156-158. 

 Plate VI. Calamus Bajonculo. 

 Calamus orbitarius. 

 Plate VII. Calamus macrops. 



Grammateus medius. 

 Plate VIII. Figs. 1-4. Cyrena Carolinensis. 

 " 5-6. " Floridana. 

 For explanations see page 197. 

 Plate IX. Figs. 1, l.i-17. Hemphillia glandulosa. 



" 2, 6, 9-11. Succinea appcndiculata. 

 " 4, 5. Pellicula depressa. 

 " 7, 8. Simpulupsis sulculosa. 

 " 12-14. Pellicula convexa. 

 For explanations see page 210. 

 Plate X. Cervus Yucatanensis. 

 Plate XI. Fig. 1, 5-7. Gceotis. 

 " 2-4, 9. Physa. 

 " 8. Amphibulima patula. 

 For explanations see page 2.5G. 

 Plate XII. Map to show limits of the Upper Coal Measures in Ohio. 

 Plate XIII. Fig. 1. ArioUmax niger. 



" 2-8. Prophysaon Remphilli. 

 Plate XIV. Figs. 1, 2. Helix Columbiana. 

 " 3, 4. Helix germana. 

 " 5-8. Helix lychnuohus. 

 For explanations see page 310. 

 Plate XV. Fig. 1. Zonites Gundlachi. ^ 



" 2,4,5. Achatinella producta. 

 " 3. Nanina Chamissoi. 

 " 6. Newcombia picta. 

 " 7, 9-11. Laminella Mastersi. 

 " 8. Leptachatina nitida. 

 Plate XVI. Figs. 1-2. Helix ]ncta. 



" 3-5. Oiichidium Schrammi. 

 For explanations see page 351. 



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