1861.] ON THE SEA-ANEMONES OF MADEIRA. 303 



species that have occvirred, but it seems to be closely allied to the 

 British Bunodes ballii. The pale-red, diaphanous tentacles become 

 in some cases, when contracted, of a red-purple colour, in others of a 

 brown hue. In one specimen, which was brought to me much 

 wounded, the red tubercles of the column were ringed with greenish 

 yellow. The animal is rather impatient of light, and is only seen 

 fully expanded at night. It adheres very firmly to the object it is 

 seated upon, and will submit to be torn rather than loosen its hold. 

 I have named this species in honour of Dr. N. Lister, of Funchal, 

 to whom I am indebted for much sympathy and assistance in my 

 investigations. 



Alicia, gen. n. 



Base adherent at pleasure ; greatly exceeding column. Tentacles 

 simple. Margin of disk simple, without spherules. Column beset 

 loith stalked appendages. 



Alicia mirabilis. 



Base pale brown, adherent apparently by means of minute round 

 suckers scattered over it, capable of great dilatation, and sometimes 

 having a diameter of between 4 and 5 inches ; very transparent, so 

 that the appendages on the column could be seen through it. The 

 outline undulate ; the surface marked with about a hundred radi- 

 ating furrows, meeting in the middle, and causing the margin to be 

 crenate. Column apparently imperforate, pillar like, when fully 

 expanded measuring 2^ inches in height and diameter ; surface deli- 

 cately soft, pellucid, pale brown, marked with longitudinal furrows 

 corresponding with those on the base; beset with stalked appendages. 

 At the base these appendages are small, nearly sessile, and bear at 

 their summits a single wart of hemispherical outline and of a dull- 

 purple hue ; they become larger in proportion to their height above 

 the base, until those next the oral disk have stalks half an inch high 

 and -j^ of an inch in diameter, which divide and redivide, each ulti- 

 mate division always crowned with a wart. As many as sixty warts 

 might be counted on one of these appendages, the appearance of which 

 when half-contracted, had some resemblance to a head of cauliflower. 

 In most cases the common stalk was of an opake white colour, but 

 in other cases it was orange ; and there were two of this colour stand- 

 ing higher up the column than the rest, and placed over against 

 each other. When the animal was in its greatest state of contrac- 

 tion, no part of the column was visible, on account of the warted 

 tops of the appendages forming an unbroken coat ; when fully ex- 

 panded, the soft delicate body was seen between the separated ap- 

 pendages, and the upper part near the disk was extended quite clear 

 of them for a considerable space. Under the microscope the purple 

 warts were seen to consist of an exterior, transparent, colourless coat 

 enveloping a body which was purplish at the tip and pale brown 

 below. Disk destitute of marginal spherules, not lobed nor extending 

 beyond the column, pale brown, transparent, slightly cupped. Ten- 

 tacles pale brown, simple, subulate, elongated, rather slender, often 



