THE CAVE-DWELLING ANEMONE. 101 



he describes as of a reddish-brown or orange hue, with 

 white (suctorial) spots, and well-barred tentacles ; the disk 

 generally crossed with a white line. The latter has more 

 of the ordinary aspect of a troglodytes. 



Sir John Dalyell observed in the latter (which he named 

 explorator from the circumstance) the occasional elonga- 

 tion of one or two tentacles, which we have seen to be a 

 not uncommon phenomenon in this family. A specimen, 

 not half an inch in diameter, exhibited two tentacles 

 together, each of the length of an inch and three quarters. 

 In general, the elongation took place at night. From its 

 ordinary length of half an inch, each tentacle gradually 

 became two inches long, thickened and distended to 

 transparency. "It is then seen rising from among the 

 rest, curving over to the opposite side of the disk, and as if 

 searching around." After a while, it shrank back to its 

 former state. 



Both of these (supposed) species were prolific. The 

 latter produced sixty young in one night ; which were pure 

 white, and large in proportion. Of the former, three indi- 

 viduals, in October, produced infusorium-like germs, which 

 were ovoid, and yellow-green in hue : some showed a long 

 transparent horn in front, visible as the animalcule pur- 

 sued a steady course ; behind it was open like a cap. They 

 presented much disparity both in form and size. They 

 swam actively by means of cilia. These germs continued 

 visible throughout October, but, though carefully preserved, 

 they led to no ultimate results.* 



Since the earlier pages of this article were issued, I have 

 been favoured with an interesting letter from Miss Gloag, 

 of Queensferry, Fifeshire, who has long been a successful 

 cultivator of Anemones. I regret that limited space forbids 

 my giving her communication in extenso : I am compelled 



* Rem. Anim. of Scotl. j 226, 227. 



