CONTENTS. 



Reticulated Keratophyton, called Venus'j Fan. Plate 

 XXVI. p. 6i. 



Spo?2gy red Keratophyton. Plate XXVI. p. 64. 



N°. I . Keratophyton fpread like a Fan^ and covered with a 

 nsjarted Bark Plate XXVII. p. 67. 



N". 2. Dichotojnous Keratophyton, with its Stalk and Branches 

 pghtly comprepd. Plate XXVII. p. 68. 



Efcham. 



N°. I. Foliaceous milleporous Efchara, with tender narrow 

 Leaves^ that appear cut off at the Knds-, and covered on 

 both Sides with oblong Cells placed alternately. Plat© 

 XXVIII. p. 69. 



N°. 2. Spongy Foliaceous Efchara, covered on both Sides with 

 arched Cells placed alternately. Plate XXIX. p. 70. 



N**. 3. Sto7iy^ foliaceous^ and milleporous Efchara, growing 

 together irregularly here and there, and made up on both 

 Sides of Fgg-Jljaped Cells. Plate XXX. p. 71. 



Stag's Horn porous Coral of Imperatus. Plate XXX. 

 p. 72. 



Spo?igy Egg-fjaped Cells ^ growing on a Fucus. Plate 

 XXX. p. 72. 



Stony Efchara of Imperatus, full of Holes like a Net, 

 PlateXXV. p. 72. 



N". 4. Spongy, foliaceous, and ?nilleporous Efchara, compofed 

 of Cells of an inverted conical Form, and Hairs abwJ thsir 

 Fntrances. Plate XXXI. p. 73. 



d Comfnon 



