Marine Invertebrates 34 



Range Phenomena 34 



a) Northern Limit 35 



b) Northern Outlier 35 



c) Southern Limit 35 



d) Southern Outlier 35 



e) Eastern Limit 35 



f) Eastern Outlier 35 



g) Coastal Plain Outlier 35 



Geological Features 



a) Geomorphological 36 



b) Structural 36 



c) Paleontological 36 



Archeological Features 37 



a) Prehistoric Sites 37 



b) Historic Sites 37 



Ecologically Significant and Important Biota and Areas 39-41 



Proposed Natural Areas 42-45 



Bibliography 46 

 Appendices 45-57 



I. Smithsonian Center for Natural Areas and Staff 47 



II. Organizations Contacted 50 



III. Mapping and Graphic Analysis 53 



IV. Rare, Endangered and Threatened Vertebrate Species of 

 the Chesapeake Bay Regions 



V. Rare, Endangered and Endemic Plants of the Chesapeake Bay Region 



VI. Registered Natural Landmarks — National Park Service 



