THE GLOBEHOUN 
293 
SO exactly those of the Coral, that I have often more than 
half suspected that the former is the immature condition 
of the latter. Both are found in the same localities, in the 
same haunts, and often in close proximity, which helps the 
conjecture. No trace of calcareous deposit is found in the 
tissues of Corynactis when crushed between plates of glass ; 
hut the observations of Mrs. Thynne* have shown that 
the young of CaryophylUa attain a large size without depo- 
siting a corallum. But the results of this lady’s experi- 
ments, — so far as they go, — tend to negative the identity 
of the two animals; though I must still consider the species 
as in near affinity. 
Under the microscope the tentacle is seen to consist of 
a transparent thick-walled tubular stem, in which longi- 
tudinal fibres are conspicuous, and a globose head. The 
stem is studded with large oval warts, varying in shape 
and size, and without orderly arrangement, but set trans- 
versely on the whole, very close together in contraction, 
but separated by wide spaces when the tentacle is 
elongated. Both the head and the warts are pellucid 
in themselves, but are sub-opaque from their contents : 
both are thickly covered with palpocils, wdiile the trans- 
parent portions of the stem are clothed with cilia. 
In conformity with the great predominance of the longi- 
tudinal over the annular muscular fibres in the tentacle- 
wall, the contraction of these organs is in length rather 
than in diameter ; or at least that of the diameter is only 
the result of elongation. The globose head seems non- 
contractile ; and hence, wffien the stem is much elongated, 
we see a spherule at the tip of a narrow foot-stalk, while, 
when the form is much contracted, the head remaining 
unchanged, we have the “ conmgated cup ” of ^ilr. Peach, 
with the sphere seated as it were in it. 
* Annals Nat. Hist, for June, 1859. 
