280 bulletin: museum of comparative zoology. 



I'LATE 29b. 



The sand neck between Traicao Bay and Lngoa de Sinimbii. Part of the Trai9ao 

 Bay panorama. Plate 29 a joins this on the left. 



PLATE 30. 



The neck of sand between Traifao Bay on the right and Lagoa de Sinimbu on the 

 left, looking northward. See pages 133 and 134. 



PLATE 31. 



The northern end of Mamanguape stone reef seen from behind the reef at low tide. 

 See pages 47-55. 



PLATE 32. 



Looking south along the Mamanguape sandstone reef at low tide. See pages 

 47-55. 



PLATE 33. 



Looking north along the Mamanguape stone reef; the tide not all out. See pages 

 47-55. 



PLATE 34. 



Looking soutliward, and showing the branching and bending of the Mamanguape 

 sandstone reef. See page 48. 



PLATE 35. 



A break in the Mamanguape reef caused by undermining. The blocks in the gap 

 are covered with seaweeds. See pages 47-55. 



PLATE 36. 



Looking northward along the seaward side of the Mamanguape sandstone reef. 

 See pages 47-55. 



PLATE 37. 



Looking northward along the outer side of the Mamanguape reef at low tide. See 

 pages 47-55. 



PLATE 38. 



Along the landward side of the Mamanguape reef, showing blocks broken by the 

 surf from the outer face and thrown across the reef. The curving of the reef 

 is also shown. See pages 47-55. 



