49 



Kind of Shore or Bottom 



Preferred by Living 



Representatives. 



Geographical Range of Living Representatives. 



Extreme 



Northern 



Range. 



Extreme 

 Southern 

 Range. 



0-40 



0-10 



0-10 

 0-12 



1-3 

 0-10 



5-40 



-8 

 0-2 

 2-107 

 10-10 

 0-60 



15-63 



12-80 



2-10 



Muddy Shore and Bot. 

 Stagnant Water. 



Swamps, Br. Water. 



Sandy Sh. and Bot. 



Mud, Br. Water. 



Rocks, shells. 

 Rock, shell, weeds. 



Muddy shore. 

 Rocks, shells. 

 Sand, mud. 



Shelly. 



Shellv and muddy. 

 Muddy Bot. 

 Muddv flats. 

 Shelly Bot. 

 Muddy Bot. 



Shells, graveL 



Cape Cod. 

 Massachusetts. 



Massachusetts Bay. 



Maryland. 



Hatteras. 



Hatteras. 



Cape Cod. 



Hatteras. 



Hatteras. 



North Carolina. 



Hatteras. 



Hatteras. 



Hatteras. 



North Carolina. 



Hatteras. 



Hatteras. 



Hatteras. 



Cape Cod. 



Hatteras. 



Cape Cod. 



Jupiter Inlet. 

 Hatteras. 

 Nova Scotia. 

 North Carolina. 

 Nova Scotia. 



Massachusetts Bay. 



Prince Edward Is. 



North Carolina. 



Cape Cod. 



Nova Scotia. 



Connecticut. 



Virginia. 



Cape Cod. 



Cape Cod. 



Hatteras. 



Hatteras. 



Nova Scotia. 



Maine. 



North Carolina. 



North Carolina. 



North Carolina. 

 Massachusetts Bay. 

 Prince Edward Is. 

 North Carolina. 

 Hatteras. 

 Massachusetts. 

 Cape Lookout. 

 North Carolina. 



Florida Keys. 

 Florida. 



Gulf of Mexico. 



Venezuela. 



Georgia. 



Texas. 



Fernandina. 



Guadaloupe. 



West Indies. 



Trinidad. 



South Carolina. 



Jamaica. 



Gulf of Mexico. 



Florida, Texas. 



Carthagena. 



St. Thomas. 



Gulf of Mexico. 



Gulf of Mexico. 



Gulf of Mexico. 



Gulf of Mexico. 



Darien. 

 Vera Cruz. 

 St. Augustine. 

 Barbados. 

 Tampa. 



Florida Keys. 

 Florida Keys. 

 Antilles. 

 Florida Keys. 

 St. Augustine. 

 Texas. 

 Key West. 

 South Carolina. 

 Charlotte Harbor. 

 West Indies. 

 St. Thomas. 

 Barbados. 

 South Carolina. 

 Jamaica. 



Santo Domingo. 



Jamaica, Cuba. 



Florida. 



St. Augustine. 



Florida Keys. 



West Indies. 



Aspinwall. 



West Indies. 



Santo Domingo. 



Antilles. 



4— P. D. 



