Sertularia. 
Z. HYDROIDA. 
123 
the Cape of Good Hope, of a still greater size and more robust and 
shrubby habit, with numerous and compound branches, — evidencing 
the genial influence of climate on the growth and appearance of these 
corallines. 
2. S. Ellisii, climbing , fiexuous ; the cells urceolate , bulged 
at the base , with a 4- toothed rim : vesicles with the opening 4,- 
toothed. Ellis. 
Ellis, Corail. 6, pi. 2, fig. b, B. Sertularia Ellisii, M. Edwards in Lam. 
Anim. s. Vert. ii. 142, 2de edit. 
Hab. Parasitical on other corallines. 
Under the “ Great-tooth Coralline” Ellis describes this shortly : 
“ The other species, which is the climbing one, is more branched, 
the denticles are placed more asunder, and their mouths are wider : 
The vesicles of both species are wrinkled.” It has been always con- 
sidered a variety of the preceding until separated from it by Milne- 
Edwards on what appear to be sufficient characters of distinction. 
I have seen no specimen. 
3. S. Templetoni, u stems simple ; cells short and narrow” 
Mr Templeton.* 
Sertularia Templetoni, Fleming in Edin. Phil. Journ. ii. 88. Flem. Brit. 
Anim. 543 — La S. de Templeton, Blainv. Actinolog. 480. Lam . Anim . 
s. Vert. ii. 152, 2d edit. 
Hab. “ Loch of Belfast, Mr Templeton,” Fleming. 
“ Height about an inch ; slightly branched ; cells narrow, tubular, 
produced ; the vesicles oval, lengthened, narrow at the base, covered 
towards the summit with lanceolate spines. This species is of a 
more delicate texture than the preceding, (Thoa muricata), the ve- 
sicles are of a different shape, and the stem is simple. It was given 
to me by an accomplished naturalist, the late Mr Templeton of Orange 
Grove, Belfast. It adheres apparently to a gramineous leaf, proba- 
bly of a zostera, and therefore may be considered an inhabitant of shal- 
low water.” Fleming. 
4. S. rugosa, cells ovate 9 wrinkled transversely , the mouth nar- 
row with 3 or 4 small teeth on the rim. J. Ellis. 
Plate YIII. Fig. 4, 5, 6. 
Snail-trefoil Coralline, Ellis, Corail. 26, no. 23, tab, 15, fig. a, A 
Sertularia rugosa, Lin. Syst. 1308. Pall. Elench. 126. Ellis and Soland . 
* John Templeton, Esq. born in Belfast in 1766, where he died, I believe, in 
1827. For an interesting memoir see the Mag. Nat. Hist. v. i. p. 403, and v. 
ii. p. 305. 
