BOTJGAINVILLIA RAMOSA. 109 



1. B. RAMOSA, Van Bencden. 



EUDENDRIUM RAMOSUM, Van Ben., Rech. sur les Tubul. 56, pi. iv. (with the 



exception of fig. 2). 



TUBULARIA RAMOSA, Dcili/dl, Rem. An. Scotl. i. 64, pi. xi. 

 MEDUSA OCILIA and DUODECILIA (the free zooid), Daly. ibid. 66 & 72, pi. xi. 

 ATIUCTYLIS RAMOSA, T. S. Wright, Edinb. New Phil. Journ. (N. S.) for Jiiii. 



1859, vol. viii. pi. i. figs. 1, 2, 3. 

 MARGELIS RAMOSA, Agassiz, N. H. U. S. iv. 344. 

 BOUGAINVILMA RAMOSA, All tnan, Ann. N. H. for May 1864. 



Plate XIX. fig. 2. 



ZOOPHYTE much branched, of a yellowish horn-colour; 

 MAIN STEMS and larger branches thick, composed of 

 many delicate tubes ; the branches alternate and some- 

 ivhat spirally disposed, bearing numerous short ramules, 

 which dilate at the extremity into a kind of cup, within 

 which the polypite is in great part retractile POLYPITES 

 with nearly 20 white tentacles when adult; GONO- 

 PHORES borne in pairs or clusters on the ramules, a little 

 below the cup-like expansion, pyriform, pedunculate, 

 invested by a delicate capsule, and containing a single 

 zooid. 



GONOZOOID. UMBRELLA (at the time of liberation) deep 

 bell-shaped, without thread-cells ; MANUBRIUM of an 

 orange colour, with simple oral tentacles, which carry 

 capitate clusters of thread-cells at the extremity ; MAR- 

 GINAL TENTACLES with orange bulbs and a dark ocellus 

 at the base of each. 



WHEN finely grown, B. ra/nosa attains a height of 3 in- 

 ches, and presents a very tree-like appearance. In large 

 specimens the main stem is very thick and coarse, and the 

 branching luxuriant and irregular. The habit, as noted 

 by Mr. Alder, is not unlike that of Halecium. The lower 

 and larger branches are compound, like the stem, and 

 often much ramified. The polypiferous ramules are short, 

 and terminate in a very decided cup, within which the 

 polypite is almost concealed when retracted. This cup is 



