856 MR. A. W. WATERS ON 
nivea B.,and they are mostly, or at any rate exceeding frequently, 
attached to the operculum, indicating that the movement gained 
in this way is favourable to the Loxosoma. 
Loc. Holland (Kef.); Shetland (Hincks); Naples (Harmer, 
etc.); Newfoundland (J. & C.). Prison Island, Zanzibar Channel, 
8 fath. (505), collected by Crossland. 
ADDENDUM. 
Since I wrote about Lagenipora socialis H. in the description 
of the Cheilostomata from Zanzibar, pt. i. p. 510 (1913), I have 
examined the Norman Collection, recently sent to the British 
Museum, and there is a specimen from Hastings, sent by 
Mr. Hincks to Canon Norman as Lagenipora socialis, which has 
a pore at each corner of the ridge, as I described in the Guernsey 
specimens. 
This entirely confirms the view that Lagenipora socialis is the 
type of the group which [I have several times maintained was 
Lagenipora, but which Levinsen has called Siniopelta. By this 
specimen it is now definitely settled, and does not admit of 
further question, but the examination has brought out another 
interesting point. The Cedleporella Norman belongs to the same 
genus, which, however, Norman at some time recognised, for he 
wrote on Hincks’s co-type of Lagenipora socialis, “ Celleporella 
lepralioides.” However, under C. lepralioides he had two species, 
first the Z. socialis, and then from Guernsey and from Hardanger 
Fiord specimens with several pores by the ridge of the ovicell, 
which are probably Z. lucida, as well as L. socialis, both of which 
he had identified with Celleporella lepralioides. Of course, Celle- 
porella has to disappear, as it was not recognisable from the 
description and figure. 
I might have mentioned in the same paper, when speaking of 
Actea, p. 464, that what I call the bulging out of the zoecial 
wall, for the ovum, before the ovicell has been formed, has been 
figured by Prouho in Cylindrecium™. 
In looking over seaweed for Pedicellina a few zocecia of Lepralia 
poissonit Aud, have been met with from Wasin, Brit. EK. Africa, 
10 fathoms. The primary zocecium has two or three more spines 
than Levinsen’s figures. The species is known from the Atlantic, 
Australasia, Indian Ocean, and Japan (A. W. W. coll.), and is a 
common species in many localities. It also oceurs fossil. 
From Chuaka, 3 fathoms (523), a few zocecia of Beania inter- 
media Hincks were found. There are no frontal spines, and near 
the proximal end there is a large plate for the attachment of the 
radicle, and at each side of this, near the border of the zoccium 
either at the same level as the radicle or higher up, there is a 
* Contrib. a Vhist. des Bryoz. »” Arch. Zool. Ex ér. gme ser. vol. e A 
figs. 14-17 (1892). : P x, pl. xxiv. 
