42 Natural Hiftory of 



Fig. A^ reprefents a Branch with its fmall Tubes, magni- 

 fied by Number 5 oiWilJo7i% fingle Microfcope. 



Plate xxii.N'. 9. Coralli7ia cellifera mintitijfima^ rainofa^ &' falcata:, 

 celluUs Jjfnplicibus^ tauri cor?m facie invicem mferiis. 

 BuU's-horn Coralline. 



This beautiful Coralline is one of the fmalleft we meet 

 with : It rifes from Tubulin growing upon Fiiciis s ; and 

 paffes from thence into fickle-fhaped Branches, confifting of 

 fingle Rows of Cells looking, when magnified, like Bull's 

 Horns inverted : Each one arifing out of the Top of the other. 

 The upper Branches take their Rile from the Fore-part of the 

 Entrance of a Cell, where we may obferve a fiifffhort Hair, 

 which feem to be the Beginning of a Branch. 



The Opening of each Cell, which is in the Front of its 

 tipper Part, is furrounded by a thin circular Rim ; and the 

 Subftance of the Cells appears to confift of a fine transparent 

 Shell, or Coral-like Subftance. 



Fig. ^, N". 9. is the natural Size of this minute Coral- 

 line adhering to a Fucus. 



Fig. Bf fhews the Tubes, and the falcated Ramifications 

 of the Cells, as magnified by the fifth Glafs of WlIJo?i^ Mi- 

 crofcope. 



Plate XXI. ls[°. 10.- Coralliiia cellifera^ in'mutiffima^ falcata, &' cru- 

 ^^'^' ' Jlata^ celluljs caprkorntformibus ftmplkibus^ veftciilas ge^ 

 rens. 



Goat's-horn Coralline. 



This very fmall capillary Coralline confifts of Branches 

 of fingle Cells, fhaped like Goat's Horns inverted, placed 



one 



