850 GEMMULES OF TURRIS. 



and inclined to orange, and many oval gemmules of 

 dark lake -crimson, or purple, were seen in its sub- 

 stance. On the floor of the cell in which it was con- 

 fined were more than a dozen of the gemmules already 

 escaped ; I at first supposed them eggs, but on closer 

 examination, found that they were active little swim- 

 ming creatures with a will of their own ; that they 

 were in fact gemmules, perfectly oval in form, about 

 1^ inch in length, and of a fine lake hue : their whole 

 surface covered with vibratile cilia, by means of which 

 they glided about with an even quick motion. (See 

 fig. 9). 



Two days afterwards these gemmules were still 

 active, and possessed the power of locomotion. They 

 were not perceptibly changed in appearance, except 

 that they seemed a little larger. 



On the 4th Sept. I noticed one lying at the bottom 

 of the phial in which I had put them. I extracted it 

 by means of a glass tube, and found that its colour 

 had become paler, being now of a rose-pink, that its 

 surface was irregularly granulose as if decomposing, 

 and that motion had ceased. 



On the same day I took two specimens about -^ in. 

 high, brilliantly conspicuous from the orange coloured 

 or pale vermillion ovaries studded with large ova of a 

 rich purple hue. The umbrella is remarkably turbid, 

 being scarcely more than pellucid, and appearing 

 quite white against a dark background. When rest- 

 ing in a phial of water, the tentacles are elongated, 

 like white threads of an equal thickness throughout, 

 and are extended in every direction, some perpen- 

 dicularly upwai'ds, some downwards, and some arching 



