70 ZOOPHYTES. 



an erect stem, meagrely provided with branches, irregular in dimensions, 

 position, and intervals, and likewise in their subordinate parts. — PI. XXI. 

 fig. 1. The same enlarged, fig. 2. 



The stem and branches are faintly annulated, and all the extremities 



are obtuse. 



It will be recollected that the hydra of the Campanularia verticillata, 

 are borne on sets of pedicles.— Vol. I. Plate XII. fig. 1. Here, in lieu of 

 hydra, sets of four spherules, standing on pedicles, nearly at right angles 

 to each other, are dispersed over the product. Under a powerful magni- 

 fier, the surface of these sperules appears rough or papillous, composed of 

 prominences. They have an adhesive quality. — Fig. 7. 



The stem is a cylindrical tube, remaining vacant on decay of the pith. 

 The summit is obtuse, wherein if there be an orifice, I never saw it open. 

 But small muddy rolls have appeared in vessels containing no other ani- 

 mal perceptible. 



Like the adult Pedicellina, the whole parts of the Coryna are capable 

 of spontaneous inflexion. Moreover, the spherules on their pedicles have 

 a slight percussive faculty, though nothing to be compared with that of 

 the zoophyte just named. It is in the upper part of the stem that the 

 flexible property chiefly resides. There, a complete recurvature can be 

 made downwards, so as perfectly to resemble a shepherd's crook, while the 

 plain or lower part of the stalk, free of the series of spherules and pedicles, 

 remains quite erect. The summit is sometimes bent down, almost to the 

 root : and the motion is such as to prove inconvenient for delineating the 



subject. 



Some specimens are very pale, the finest are red. 



Spherules of a different character from those above described, and 

 either solitary or in clusters, are connected by the shortest pedicles with 

 different parts of the product. Nine such spherules, red, of irregular size, 

 with a darker nucleus, constituted the most numerous cluster that was 

 observed. Probably they are gemmules, containing the embryo Coryna. 

 But, spite of every precaution for their suitable preservation, and the de- 

 velopment of the young, should it be so, I have been unable to verify my 

 conjecture, which others may have done with facility. Without leaving 



