18 
SNAIL-TREFOIL CORALLINE. S. Rugosa. Cell* 
ovate, wrinkled trausversely, the mouth narrow, wi 1 ® 
three or four small teeth on the rim. Ellis. 
Snail-trefoil Coralline, Ellis’ Coral., p. 26, no. 23, pi. I 5 ’ 
fig. a A. Sertnlaria Rugosa, Turton’s Lin., vol. 4, p. 67®* 
Ellis and Solander’s Zooph., p. 52, no. 24. Stewart’s EleiO'’ 
vol. 2, p. 442. Fleming's Brit. An., p. 542. Templeton 
Mag. Nat. Ilist,, vol. 9, p. 466. Johnston’s Brit. Zooph., P’ 
123, pi. 8, figs. 4, 5, and 6, Clytia rugosa, LamourouS 3 
Cor. Flex., p. 204. 
Hah, On the roots of fuci, sponges, &c. ; Lantivet bay* 
This species is not common ; but when found it is gene' 
rally in large companies, shooting up from the trailing tuba' 
lar roots of each other. It rarely exceeds an inch in heig^ 
is erect, and very sparingly branched. The cells are ir rC ' 
gularly arranged, sometimes being alternate, and at othe’' s 
crowded together; it may, however, be immediately recog' 
nised by its remarkably wrinkled cells. The vesicles ver, v 
closely resemble the cells, but are much larger and t® 6 
apertures are three-toothed. 
* * Cells in pairs, opposite, or semi-alternate. 
LILY OR POMEGRANATE FLOWERING CORA 1 "' 
LINE. S. Rosacea. Cells opposita, closely arrang 6 ®’ 
mouth entire, plain, and truncated ; vesicles pear-shap e ®' 
with a very uneven mouth. 
Lily or pomegranate flowering Coralline, Ellis’ Cor., P' 
8, no. 7, pi. 4, fig. a A. Dynamena Rosacea, LamourouS, 3 
Cor. Flex., p. 178. Fleming’s Brit. An., p. 544. Sertulan* 
Rosacea, Ellis and Solander’s Zooph., p. 39, no. 7. Turton 3 
Lin., vol. 4, p. 670. Stewart’s Elem., vol. 2, p. 440. J°h B ' 
ston’s Brit. Zooph., p. 124, pi. is., figs. 1 and 2. 
Hab. On Pinna Ingens, from deep water off the DeadtH®* 1 
point ; rather rare ; Gorran, Mr. Peach. 
From one to two inches high. The colour of this specie* j 
of a delicate horn or pale brown. It is slender, drooping, 
rooted by numerous brown tubular fibres matted togetb 6 ‘ 
It is sparingly branched in a bifarious manner. The p*® 1 * g 
are alternate, and but slightly smaller than the trunk. L , 
trunk and pinnm are divided into joints at short interva’ 1 ^ 
and each internode bears a pair of cells. The cells 
opposito ; their superior portions free and vary diverge’* j’ 
their apertures slightly everted, even and unarmed, 
sometimes gently waved and the external portions sl’S* 1 [tl 
pointed. The vesicles are sometimes abundant and arise f r °j, 
the base of the upper row of cells ; they are pear shap 6 ’ 
