222 BRITISH CORALLINES: 



ferous tubercle, which frequently becomes axillary by little se- 

 taceous branches shooting up from each side. 



This coralline, Ellis says, " is remarkably slenderer, longer, 

 and smaller than the officinal coralline, and of a reddish or 

 purplish colour." Even after it had been reduced to a variety 

 of the C. officinalis by Linnaeus and Pallas, Ellis still retained 

 his opinion of their specifical distinctness, and after some hesi- 

 tation, and a comparison of specimens before me, I have been 

 induced to follow the same course, — principally from the great . 

 difference in their habit or general appearance, which a speci- 

 fic character cannot be made to express. The crust is smooth 

 and unporous. In its mode of producing granules the species 

 resembles the variety cristata of Jania rubens ; and it is curi- 

 ous to remark that the setiform side branchlets have the slender- 

 ness and long cylindrical articulations more peculiarly charac- 

 teristic of the genus Jania. 



3. C. Squamata, ** the short lateral shoots of the branches 

 compressed and two-edged.''' 



Upright English Coralline, with spear-like heads and flat joints, 



Ellis, Corall. 49, No. 4, pi. 24, fig. c, C. 

 Corallina squamata, Ellis and Svland, Zooph. 117. Turt. Gmel. 



iv. 671. Twri. Br. Faun. 211. 5<cm;. Elem. ii. 439. Lamour. 



Cor. Flex. 287. Corall. 129. Lam. Anim. s. Vert. ii. 329 ; 2de 



edit. ii. 514. Gray, Briu PI. i. 340. Flem. Brit. Anim. 515. 



Bosc, Vers. iii. 75. Risso, L'Europ. Merid. v. 321. Stark, 



Elem. ii. 426, pi. 8, fig. 5. Krauss, Corall. et Zoophyt. der 



Sudsee, 17. 

 C. officinalis, ji, Lin. Syst. 1304. 



Hab. Coast of Cornwall, Borlase. 



" This is of a sea-green colour, and was collected on the coast 

 of Cornwall by the Rev. Dr William Borlase. It has a very 

 different appearance from the officinal Coralline, of which some 

 authors who have not seen it would make it a variety." Ellis. 



Smaller and more delicate than the C. officinalis with which 



