284 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 



PLATE 69. 



Tlie terrace at Opaba, Boa Vista Fazenda, just north of Ilheos, State of Bahia. 

 See pages 154 and 155. 



PLATE 70. 



Tlie terrace at Vellosa, about two kilometres north of Ilheos, State of Bahia. See 

 page 155. 



PLATE 71 



The penedo, a peak of exfoliated granite at Victoria, State of Espirito Santo. See 

 page 158. 



PLATE 72. 



A line of pits on the granite peak at Victoria, Espirito Santo, showing recent ele- 

 vation of tlie coast. Photograph taken from a passing steamer. See page 158. 



PLATE 73. 



Sea-urchin burrows in blocks of trachyte on the beach three hundred metres north- 

 west of Pedras Pretas point, coast of Pernambuco. See page 159. 



PLATE 74. 



Young mangroves, showing how the roots spread through the water; Affogados, 

 near Pernambuco. See page 167. 



PLATE 75. 



General view of the edge of a mangrove swamp, showing the close-set plants. See 

 page 167. 



PLATE 76. 



Coral reefs, three kilometres south of Sao Miguel, Siate of Alagoas. There is 

 one coral reef on the horizon, one in the middle background, and one in the 

 foreground overlapped by beach sands. See page 242. 



PLATE 77. 



Tlie Maceio coral reefs seen from the beach at Jaragua, State of Alagoas ; low tide. 

 See pages 270-274. 



PLATE 78. 



The Itapan'ca coral reef south of Bahia. Photograph made in 1875 by the Com- 

 missfio Geologica da Brazil. See pages 246-249. 



