195 
Bryozoa of the Bay of Naples. 
The operculum (5*) is 0T68 millim. long and 0T32 wide, 
with a notch where the hinge is often seen in other species. 
The shape, which is characteristic, is the same as the last, 
with the exception of the notch. 
66. Cellepora Hassallii , Johnst. 
Cellepora Costazii, Aud. in Sav. Egypte, pi. vii. fig. 4. 
Cellepora Hassallii, Busk, Cat. Mar. Polyz. p. 86, pi. cix. figs. 4, 5, 6. 
Cellepora Hassallii, Smitt, Krit. Fort. 1867, pp. 33 and 197, pi. xxviii 
figs. 211. 
Cellepora Hassallii, Manz. Brv. Foss. Ital. cont. 4, p. 17, pi. iv. 
fig. 22. 
In some specimens, growing on seaweed from the Bay of 
Naples, the cylindrical cells are more erect and longer than in 
any of the figures. In all the ovicells have similar radiating 
lines; and I have not been able to verify Manzoni’s and 
Smitt’s remarks as to the variation in the ornamentation of the 
ovicell. Whether this is ouly a variety of the form which is 
called Boryii by Audouin is somewhat uncertain. There 
does not seem any reason for supposing this is C. bimucronata 
of either Moll or Lamouroux. 
Operculum (10*), distal end rounded, proximal end with a 
smaller radius ; muscular prominences in the upper half of the 
operculum 006 millim. apart, width of operculum 0T millim., 
length 0T millim. 
Loc. Pliocene : Pezzo, Archi, Carrubare (Calabria) ; Ant¬ 
werp ( H . de L .). Living: Scotland, Britain, Ireland, Red Sea 
(on a piece of seaweed drawn up on the sounding-line) ; 
Naples, on seaweed from moderate depth. 
67. Cellepora Boryii , Aud. 
Cellepora Boryii, Aud. in Savigny, Descr. de l’Egypte, pi. vii. fig. 3. 
Zoarium radiate; cells cylindrical, long, contracting near 
the distal end; peristome much raised, especially at the two 
sides, with prominent, mucronated, ascending avicularium on 
the lower lip overlooking the mouth ; ovicell ornamented with 
radiating openings ; peristome nearly meeting over it; aper¬ 
ture rounded on both lips. 
At first I thought this was the Hassallii of Johnston; but 
the one prominent rostral avicularium instead of the two on 
each side of the mouth sufficiently distinguishes it. There 
can be little doubt that it is the Boryii of Savigny, as the 
mode in which the peristome nearly meets over the ovicell is 
in both the same, as well as the radiating lines of the ovicell. 
These were found on the same seaweed as C. Hassallii ; and it 
is possible it should only be considered a variety. There are 
13* 
