ASTR^EACEA. 
SAGARTIAD.E. 
THE ORANGE-DISKED ANEMONE. 
Sagartia vemista. 
Plate I. Fig. 7. 
Specific Character. Disk orange ; tentacles white. 
Actinia venusta. Gosse, Ann. N. H. Ser. 2, xiv. 281. 
Sagartia venusta. Ibid., Linn. Trans, xxi. 274. Tenby, 358 ; pi. xxiii. 
figs, a, b. 
GENERAL DESCRIPTION. 
Form, 
Base. Adherent to rocks ; little exceeding the column. 
Column. Smooth, or very minutely corrugated ; studded on the upper 
half with suckers, which are not raised on conspicuous warts. Substance 
fleshy. Form cylindrical, the height rarely exceeding the diameter. 
Dish. Flat or slightly concave ; the margin somewhat undulate. 
Outline often ovate. Radii inconspicuous. 
Tentacles. About two hundred or upwards, set in about four indistinct 
rows ; the inner ones about as long as the diameter of the disk, the outer- 
most small and close-set ; slender, acute, somewhat flaccid. 
Mouth. A simple orifice without cone, or distinct lip ; frequently 
thrown into lobes. Throat ribbed. 
Acontia. Emitted copiously and freely. 
' Colour. 
Column. Warm brown, varying from deep bufi", to full rich brown- 
orange, often paler towards the lower half, where traces of alternate lon- 
gitudinal bands of pale and dai'k tint are sometimes visible. Suckers 
whitish. 
Disk. Wholly of a most brilliant orange, without markings. 
Tentacles. Pure white, without markings, except that the colour is 
generally pellucid at the foot and at the tip, and more or less opaque in 
the middle. 
Mouth. Paler than the disk. Ribs of throat white. 
Size, 
A full-sized specimen well expanded is about three-fourths of an inch in 
diameter of disk ; but the extended tentacles may increase this to an 
