90 Bibliographical Notice. 
cells are more raised above the crust and tubular than those of 
the latter species. Here and there among the open-mouthed 
cell-tubes, there occurs a tube which, instead of being open, is 
closed above with a little cap, from one side of the centre of 
which rises an umbonal-like process which is perforated at the 
apex (PI. XI. fig.6). Probably these organs are connected with 
the reproduction of Diastopora,and are homologous with ovi- 
cells. 
Dredged off Guernsey and Jersey, in 1859. 
Sedgefield, Dec. 21, 1863. 
DESCRIPTION OF THE PLATES. 
PuateE IX. ° 
Fig. 1. Eudendrium annulatum (Norman). The hydrozoon of the natural 
size. 
Fig. 2. The extremity of a branch of the same species, magnified to show 
the structure of the branches, the polypites, and the gono- 
blastidia. 
Fig. 3. A portion of one of the larger stems of the same species, showing 
the curious network of tubes with which they are strengthened. 
Fig. 4. Tubiclava Cornucopie (Norman). The hydrozoon on a shell of 
Astarte suleata: of the natural size. 
Fig. 5. A portion of the same, magnified, and showing the structure of the 
several parts of the species. 
PuatTE X. 
Fig. 1. Rhizoxenia albicolor (Norman), enlarged. 
Fig. 2. Lepralia venusta (Norman), 
Fig. 3. A single cell of the same, viewed laterally. 
Fig. 4. Lepralia complanata (Norman). 
Fig. 5. Lepralia laqueata (Norman). 
Fig. 6. Lepralia divisa (Norman). 
PLATE XI. 
Fig. 1. Lepralia polita (Norman). 
Fig. 2. Lepralia microstoma (Norman). 
Fig. 3. Membranipora sacculata (Norman). 
Fig. 4. Diastopora Sarniensis (Norman): natural size. 
Fig. 5. A portion of the same species, magnified. 
Fig. 6. A few cells and ovicells more highly magnified. 
BIBLIOGRAPHICAL NOTICE. 
Flora of Surrey ; or, a Catalogue of the Flowering Plants and Ferns 
found in the County, with the Localities of the rarer Species. 
From the Manuscripts of the late J. D. Salmon, F.L.S., and from 
other Sources. By J. A. BRrewer. 12mo. London: John Van 
Voorst, 1863. 
THE preparation and publication of local Floras in England has 
recently undergone a change. Formerly it was thought sufficient to 
form a complete list of the plants observed in a county or other 
