36 SAGARTIAD^. 



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 grooves ; 

 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 dianthus, 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 affording 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 



