166 
VINE: NOTES ON BRITISH EOCENE POLYZOA. 
faint, between these and the British example. Mr. Busk had a .small 
fragment of Idmonea in the Wetherell collection, but he did not attempt 
identification on account of its imperfection. 
Horizon : London Clay, Sheppey. 
16. HoRNERA sp. (minuta sp. n. ?) 
One single fragment of a species of Hornera, resembling some 
of the minute dichotimous forms found in the Crag, but 1 cannot 
identify it as belonging to any of these, it is well however to preserve 
the record. Zoarium flattened at the base where it has been attached 
to some foreign body, arising from which are two nnnute branches 
having cells, about six in number. 
Horizon : Brackleshem beds, Isle of Wight. 
17. Hornera sp. (flabelliformis ? Blainville). 
Amongst Mr. Alfred Bell's collection is a specimen of a flat, 
branching, flabelliform Hornera, probably referable to //. fiabelli- 
fonnis, Blainv. = ? H. FerussacH, Michelin (Eocene and Miocene), 
but unfortunately none of the cells are exposed. The face is buried 
in a matrix of clay, but it is the largest example of all the Brackles- 
ham Polyzoa, and if I were to attempt the washing of it the whole 
symmetry of the form would be destroyed. It is possible that free 
examples of this species may be found if carefully looked after. 
Horizon : Bracklesham beds. Isle of Wight. 
These are the whole of the true Eocene species that I am 
acquainted with. In higher beds, however, Mr. Bell assures me there 
is to be found at times fragments of rock derived from the earlier. 
In a note he says, Looking over a parcel of stufl" from the Post- 
Tertiary deposit of Selsey, in Bracklesham Bay, I came across the 
enclosed. It appears to me to be of Eocene origin." The material 
itself, a piece of fine sandy conglomerate in all probability was 
derived, but it w-as encrusted by Polyzoa, a very fine specimen of 
Lepralia Pallasiana, Moll. 
In space this species has a wide geogTaphical range ; in time it 
reaches back to the Coralline Crag. 
Foreign Eocene Polyzoa, Calcaire grossier, 
= Bracklesham beds, Lyell. 
The following species from the " Calcaire grossier de Mons," 
