139 



colour or pale green. It grows in tufts on rocks, or stems 

 of fnci, in deep water ; it is dichotomously brancheil, and the 

 branches are filiform and spreadin;?. The joints are long, 

 slender, and c)'lindrical, of equal thickness throughout, or but 

 slightly enlarged at the upper extremity. The two following 

 species are considered to bo varieties of this, by Fleming, 

 Lamouroux and Johnston. 



COCKS-COMB CORALLINE. Jania Rvbens, (var. b.) 

 Dichotomonsly branched, the upper part of the last joint 

 but one very much enlarged ; the upper part of the lower 

 joint less so. 



Crested or Cock's-comb Coralline, Ellis' Coral., p. 51, 

 no. 7) pi. 24, fig. f F. Corallina cristata, Tiirton's Lin., vol. 

 4, p. 672. Stewart's Elem,, vol. 2, p. 440. Ellis and So- 

 lander's Zooph., p. 121. Jania rubens, var. B, Flesning's 

 Brit. An., p. 514. Lamouroux's Cor. Flex., var. C. 

 (Cristata.) 



Hub. Common on fuci on all onr shores. 



The chief differences between this and the last are, that 

 the internodes are shorter and stouter, being about two and 

 a half times as long as they are thick; the superior extre- 

 mities of the joints are more enlarged, especially the last 

 joint but one ; and from the joints being shorter, and two 

 branches arising from every joint, it is also stouter, and more 

 bushy than the last. 



It is also liable to great variations of colour, but is gene- 

 rally either red or green; but when washed ashore it is 

 generally bleached. 



SEED-BEARING CORALLINE. Jania Rubens, (var. c.) 

 Dichotomously branched ; tlie joints swollen, but the ter- 

 minal ones most so. 



Seed-Bearing Coralline, Ellis* Coral., p, 51, no. 8, tab. 21, 

 flg. g G. Coialliua sperinophoros, Turton's Lin., vol. 4, 

 p. 672, Slew.irt's Elem., vol. 2, p. 410. Ellis and So- 

 lander's Zooph., p. 122. Jania rubens, var. D. Lamouroux's 

 Cor. Flex. Fleming's Brit. An., p. 514. Templeloa in 

 Mag. Nat. Hist., vol. 9, p. 169. 



Hab. On fuci, common. Polperro, Laniivet bay. 



This approaches very nearly the Var. B. in character, 

 but the branches are more loosely agregated, more spreading, 

 and rarely found in such tufts. 



These two last are, I think, undoutedly varieties of each 

 other, and the figures of Lamouroux at p!. 9, figs. 6 and 7, 

 are very characteristic. 



