Observations on British Zoophytes. 35 
cimen of Tm^ris neglecta laden with dark crimson ova. This 
prize I accommodated with a commodious apartment, in which 
it might exercise the duties of maternity. After a weary 
delay of nearly a fortnight, the young made their appearance 
as dark crimson ciliated larvae. These underwent the changes 
so well described by Mr Gosse ; but instead of being destroyed 
by starvation in their infancy, the four-armed polyps under- 
went a further development into a zoophyte resembling Clava 
repens (fig. 1, Plate III.) The young of Turris neglecta, 
which I now place on the table, and to which I have given the 
name of Clavula Gossii, may be described as follows : — 
Clavula Gossii (Proles Turris neglectm). Polypary creep- 
ing, sheathed in a chitinous polypidom. Polyps minute, 
seated on short stalks, spindle-shaped, furnished with about 
twelve tentacles ; upper row of tentacles long, filiform, four in 
number, erect ; rest of tentacles scattered, shorter, inclined 
upwards ; colour crimson. 
2. On the Development of Hippocrene (Bougainvillea) Britannica 
from Atractylis (Eudendrium) ramosa. 
This paper appeared as a note to Dr Wright's paper on 
Atractylis on page 449, Vol I., of the Proceedings. 
3. On the Development of Hydra tuba (Strobila) from Chrysaora. 
In September last, I extracted a larger number of young 
from the reproductive sacs of Chrysaora. The young in 
their first stage are (as has been repeatedly observed) swim- 
ming ciliated larvse. The greater part of these attached 
themselves to the surface of the water, and hung downwards as 
globular sacs seated on long thin pedicles or stalks (Plate 
III., fig. 2). The pedicles were surrounded by a thick and 
very transparent gelatinous case, corallum, or polypidom. The 
globular sac acquired a mouth, and afterwards four, eight, 
sixteen tentacles successively. As the Hydra grew, it pro- 
duced additional attachments from its body. The bases of 
these attachments in the fully-developed Hydra appeared as a 
number of closely-aggregated circles (fig. 3), in which the 
four tissues, colletoderm (a), corallum (&), ectoderm (c), and 
