126 On the Bryozoa of the Bay of Naples. 
punctured; ovicells (see fig. 9, loc. cit.) globose, finely punc¬ 
tured. 
I am indebted to Dr. Hincks for pointing out that the 
specimens collected by me are the same as a fragment which 
Mr. Peach collected and described from Fowey (Cornwall) ; 
and although he does not mention any semilunar pore, and 
describes and figures a vibraculum, I think there cannot be 
much doubt that they are the same. 
The zooecium of this is very much the same as that of Lepralia 
ciliata ; and Smitt mentions (p. 62, Krit. Fort. 1867, Bih.) 
u en Eschara-Vnx.\, ” of his Porellina ciliata , which is evi¬ 
dently this species, as the peculiar shape of the aperture is 
mentioned. 
The growing extremities (fig. 4) are different from any of the 
other Escharce examined by the author. The ends of the last- 
formed row of zooecia have a double slope, like the roof of a 
house, with a raised, rounded, slightly overlapping ridge at 
the top. On each side of this are usually five tubular holes, 
and one or two lower down on the side. At the bottom of these 
tubes is a membrane which has one, two, or even more 
minute perforations. Fig. a is the ridge of the roof and 
rosette-pores, magnified eighty-five times. 
These are the equivalents of the rosette-plates in Lepralioid 
forms; and as the growth of the next series takes place from 
these, their position should be considered in assigning a syste¬ 
matic place to this species. Peach doubts if it should be 
ranked as an Eschara ; but of its systematic position I should 
not attempt to form an opinion until I had examined in 
detail the numerous cylindrical Eschara-Yike fossils. 
In transparent sections the cells are often found not to quite 
join in the centre. In the old cells the semilunar pore often 
appears circular ; but upon examination this is found to arise 
from it being now, in consequence of the growth of the 
surrounding walls, a long tubular opening; at the bottom of 
this tube, however, is seen the original semilunar opening. 
The avicularia are sometimes bifid at the end; but perhaps 
this may be a stage of growth. 
Operculum (28*) horseshoe-sliaped; proximal edge straight, 
0‘08 millim., widest part 0T7, length OT. 
Loc. Pliocene: Rametta, Bruccoli (Sicily), Parere (Cala¬ 
bria). Eschara columnar is, Manz., from Castrocaro, looks 
much like a fragment from near the base. Living: Naples, 
40 fathoms, from the Secca. There is a worn fragment in the 
British Museum, collected from the coast of Norway by R. 
M'Andrew, which looks like it; but without sections determi¬ 
nation is impossible. 
[To be continued.] 
