198 APPENDIX. 



near the shore. The animals may be remoyed by 

 boiling. 



TUREITID^ AND COLUMBELLID^. — Pound OH 



beaches, and also in mud-flats and in deep water. 



PuRPURiD^. — Found on ocean rocks in muddy 

 creeks, along sandy shores, and in deep water. Pur- 

 piira capillus is very abundant on the rocks, and 

 countless numbers of Nassa obsoleta are found in the 

 creeks, from Maine to North Carolina. 



MuRiciD^ are found in deep water, and along shores 

 and flats which are not exposed by the tide; while 

 some are found on mud-flats. 



Helicid^, Land-Shells. — Land-Shells are found 

 beneath stones, logs, etc., in cellars, and clinging to 

 trees and plants. They are very abundant in some 

 localities. Some are also found in fresh water, es- 

 pecially in springs, where they are sometimes very nu- 

 merous. They should be carefully cleaned, as much 

 of their beauty and value depends upon this. 



ARiONiDiE. — This is a family of Land-Shells, some 

 of which have little or no shells. They may be found 

 on trees and plants, and should be preserved in alcohol. 

 Others, like the genus Zonites, have. shells. 



Philomtcid^ are shell-less, and should be preserved 

 in alcohol. 



AuRicuLiD^. — Members of this family are found 

 on the land, and also near the salt water, and occa- 

 sionally in it, as in some species of Melampus. 



LiMN^iD^. — These genera are all represented by 

 species which live in fresh water, often in rivers and 

 lakes. 



Spirulid^ are found in the open ocean, and occa- 

 sionally drift on shore. 



All shells should be carefully labeled with date and 



