36 
SAGAETIAD^. 
apparently feeling about for something, but assumed its 
usual size after a few hours. It was altogether very dif- 
ferent from what I have observed in the case of miniata." 
' The Daisy is prolific in captivity. Mr. Holdsworth tells 
me that he has known 146, 160, and nearly 300 thrown 
out from single individuals in one day. They appear be- 
tween the tubercles at the summit of the gonidial gvooves ; 
these grooves evidently acting as ducts for the transmission 
of the fully-formed young from the intersepts to the exter- 
nal world, and doubtless for that of the ova, when these are 
discharged. The characteristic form and markings are dis- 
tinctly recognisable in the newly-born young ; their prin- 
cipal distinction, besides size, consisting in the fewness of 
their tentacles, which are commonly twelve in number, and 
in the comparative length of these organs, which is much 
greater than in the adult. Mr. Holdsworth says : “ I have 
observed in this species, as well as in diantlius, and 
[Bunodes\ gemmacea, that the size of the young varies with 
that of the parent, — large parents producing large young 
ones, and vice versa. I have noticed it repeatedly ; and the 
fact may perhaps be accounted for by the greater capacity 
of the larger parent afibrding room for a further development 
of the young before they are expelled than could be 
admitted of in the case of a smaller individual-; for the 
mature ova, I imagine, are always of the same size in the 
same species.” 
I have already remarked that this species is easily kept 
in the Aquarium. It requires, however, some caution and 
skill in the manner of its capture ; for, as it resides in holes 
and crevices of the solid rock, it cannot be worked off with 
the nail, like some others, but must be cut out with a steel 
chisel. And, unless this operation be carefully performed, 
there is danger of tearing away the animal from its base, 
the central portion of which may be left behind. In this 
