PLATE 11 



Mytilus edulis Linne. 2.5 Inches, p. 37. 



Same, rayed form. p. 37. 



Modiolus opifex Say. 13 mm. p. 38. 



Mytilopsis leucopheata Conrad. Maryland. 18 mm. p. 39. 



Botula fusca Gmelln. 10 mm. p. 38. 



Mytilus exustus Llnne. Pine Key, Florida. 1.5 inches, p. 37. 



Modiolus modiolus Linne. New England. 5 inches, p. 38. 



Modiolus tulipus Linn6. Biscayne Bay, Florida. 1.5 inches, p. 38. 



Modiolaria lateralis Say. 12 mm. p. 39. 



Cardita gracilis Shuttleworth. Tampa Bay, Florida. 20 mm. p. 44. 



Myrtaea lens Verrill and Smith. 10.5 mm. p. 48. 



Telllna candeana Orbigny. Bermuda. 10 mm. p. 59. 



178 



