74 
SAGARTIAD.®. 
wlaich is occasionally 
TENTACLES OF SPHT- 
EODETA 
{vieived verticallij). 
broien in front, but always passes off behind in a 
slender wavy line to the margin, where it slightly 
bifurcates. Frequently the ring dilates into an 
undefined spot at each side of the tentacle-foot. 
Sometimes the line passing off to the margin 
can be scarcely discerned beyond the second 
row, and sometimes the whole marking seems 
obliterated. 
Mouth. Pure Avhite. 
Size. 
Half an-inch in height, and about the same (or occasionally a little more) 
in expanse. 
Locality. 
The south and west coasts of England. Low-water mark. Fissures in 
rocks ; the under surface of stones. 
Varieties. 
a. Candida. The condition above detailed, which I originally described 
in my “ Devonshire Coast” under this specific name. 
Xanthoins. Disk assuming various shades of yellow, from a pale 
chrome or lemon-colour to a deep orange, or even dull vermilion. 
This pretty little species was discovered by myself at 
Ilfracombe. It was during an unusually low spring- 
tide, in October, 1852. Specimens occurred at that time 
ill two localities, having this in common, that in each case 
they were adherent to the perpendicular or overhanging 
surface of the cliff, at the very verge of lowest water. The 
animals were ^social : in the one case I found three indi- 
viduals associated ; in the other many dozens, a numerous 
colony thronging the approximating sides of a narrow 
fissure that runs far up into the solid rock at the seaward 
base of Capstone Promenade. A frequent tendency to a 
pendent posture was noticed ; for even where the general 
surface of the rock was perpendicular, many of the Anc- 
