PLATE 13 



Lyonsla floridana Conrad. Florida. 12 mm. p. 41. 

 Lyonsia hyalina Conrad. Connecticut. 18 mm. p. 41. 

 Lyonsia beana Orbigny. Sanibel, Florida. 17 mm. p. 

 Polymesoda floridana Conrad. Big Pine Key, Florida. 

 Cuspidarla gemma Verrill and Bush. Jupiter, Florida. 

 Crassinella mactracea Linsey. 6 mm. p. 43. 



Pandora govildiana Dall. Duxbury, Massachusetts. 32 mm. p. 41. 

 Telllna aequistriata Say. Florida. 22 mm. p. 57. 

 Cyprina islandlca Llnne. New England, 3.5 inches, p. 42. 

 Astarte castanea Say. Sandy Hook, New Jersey. 23 mm. p. 43. 

 Modlolaria nigra Gray. Maine. 1 inch. p. 39. 

 .Cardita floridana Conrad. Sanibel, Florida. 1 inch. p. 44. 

 Venericardia borealis Conrad. Maine. 1 inch. p. 44. 

 Lima inflata Lamarck. Florida. 32 mm. p. 36. 



