50 STRETHILL WRIGHT, ON BRITISH ZOOPHYTES. 
while C. repens, for which it may be mistaken, is found in 
shallow rock-pools. 
6. Acharadria larynx, T.S.W. (New genus and species. 
Pl. V, figs. 7, 8.) Communicated to the Roy. Phys. 
Soc., March 26th, 1862. 
“ Polypary branched, spirally twisted. Polyps pale orange, 
with two rows of tentacles. The lower row from 4 to 
12, the upper row from 2 to 8 capitate.” 
On stones carrying Caryophyllia Smithii, received from 
Ilfracombe. This little Tubularian was about a quarter of 
an inch high, with three polyps, and resembled in habit 
Tubularia larynx. It bears the same relation to Vorticlava 
that Tubularia larynx does to Corymorpha. 
7. Vorticlava Proteus, T.S8.W. (New species. Pl. V.) 
Communicated to the Roy. Phys. Soc., May 7th, 1862. 
Scleroderm absent. Colletoderm covering body of polyp. 
Upper row of tentacles capitate 5; lower row 9. 
Several specimens of this zoophyte were found in the 
“Fluke Hole,” Firth of Forth. The body of the polyp is 
exceedingly extensible. At one time a mere button at- 
tached to the stone on which it dwells; at another it trans 
forms itself into the various shapes shown in the accom- 
panying figures. A hard covering to the body would neces- 
sarily prevent or impede these motions. The scleroderm, 
therefore, is absent, and the whole body of the polyp is 
covered with a layer of transparent “ colline,”’ which extends 
from the foot, where it forms a thick mass, to a ridge which 
runs beneath the insertion of the lower rim of tentacles. 
The zoophyte has the power of changing its place. 
8. Trichydra pudica, T.S.W. (Pl. VI.) Communicated to 
the Roy. Phys. Soc., May 7th, 1862. 
This Hydroid, which I have already described tothe Society,* 
was found recently covering a small shell from the “ Fluke 
Hole.’ As its mode of reproduction had never been observed, 
I placed it in a small vessel of carefully examined sea-water, 
and exposed it to light, a mode of treatment which often 
induces the Hydroidz to assume their Medusoid phase. 
After some time, two small Medusoids were found in the 
water, but I was unable, by the most careful examination, to 
detect their mode of development, as no “ gonophores ” ap- 
peared on any part of the ccenosare. The connection of these 
Medusoids with Trichydra is yet open to doubt, although I 
* © Kdin, New Phil. Mag.,’ N.S, vol. vi, p. 108. 
