66 LIZZIA OCTOPUNCTATA. 



already dropped off, for traces of the peduncle were perceived at the place where it had 

 grown. Of the two other buds issuing forth from this individual, the one was round at the 

 independent extremity, and had only four brownish-black marginal granules, without traces 

 of marginal fibres ; whilst the other exhibited very short, thick, prominent, marginal fibres, 

 and traces of stomach internally. 



" In another individual the two opposite knots were small, rounded, and as transparent 

 as water, without traces of stomach, marginal granules, or marginal fibres ; of the two 

 other larger ones, the one was simple, without marginal fibres, but furnished with four 

 marginal granules ; the other and largest of all also did not exhibit any marginal fibres, but 

 had eight marginal granules, of which four were much larger than the rest, the latter being 

 evidently those that had latest budded forth, owing to which circumstance they were seated 

 alternately with and between the larger ones. 



" The number of these knots I found unequal in different individuals, depending upon 

 the circumstance whether several or few young ones had already severed themselves, namely, 

 from one to three, independent of the small knots seated farther below on the stomach, 

 which become smaller the nearer they are to the mouth. The form of the latter, however, is 

 quite the same as that of the others, excepting that they are as transparent as water, and 

 without visible organs. 



" Among the larger young ones, which possess eight distinct, equally large, marginal 

 granules, marginal fibres are likewise always found to grow forth, being equally long or even 

 longer than the young one itself ; they are, however, generally found to be lying together in 

 a bent position, and only become visible when they are unfolded by the aid of a needle, or 

 when the young one severs itself forcibly from the body of the mother, in which latter case 

 they begin to unfold and to move spontaneously. Their number is usually twelve, (viz. three 

 grow from each of the marginal granules that first show themselves). Sixteen, however, are 

 found with the largest young ones, or those that are about to sever themselves from the 

 mother, (viz. one marginal fibre grows from each of the four subsequent marginal granules). 

 In the last mentioned young ones, the stomach as well as the short mouth-tentacles are 

 distinctly developed. 



" On the same day I remarked, in one of the largest of the individuals of this Acalephe, 

 a young one, which was from five to six times smaller in diameter that the mother ; it appeared 

 recently to have been severed, and still was slightly glued to the stomach of the mother, but 

 separated from it immediately as soon as I touched it with a needle, swam about in the water, 

 and exhibited the same phenomena of life as its parent. It had eight marginal granules and 

 sixteen marginal fibres. 



"On the 10th of May, I found in such a la'rge individual a perfectly-developed young 

 one, of the size of the one that I have just mentioned, and which was still glued to the body 

 of the mother. I observed it with great attention, with a view, if possible, to see the process 

 of separation. The disk, the stomach, the mouth-tentacles, marginal granules, and the four 

 radiating canals, running from the stomach towards the margin of the disk, each of which corre- 

 sponded exactly with the same parts in the mother, were evident. It was moreover as colourless 

 as water, excepting the brownish-gray stomach, and the brownish-black marginal granules. 

 Occasionally it would violently contract, and again expand (just as the mother when swimming), 

 a systole and diastole by which it strove to sever itself ; its contractions were quite independent 



