284 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
PLATE 69. 
The terrace at Opäba, Boa Vista Fazenda, just north of Ilheos, State of Bahia. 
See pages 154 and 155. 
PLATE 70. 
The 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 the 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 150. 
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 Sio Miguel, Siate of Alagóas. 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. 
The Maceio coral reefs seen from the beach at Jaraguá, State of Alagóas ; low tide. 
See pages 270-274. 
PLATE 78. 
The Itaparica coral reef south of Bahia. Photograph made in 1875 by the Com- 
missão Geologica da Brazil. See pages 246-249. 
