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Geological Society . 
2. “ A Monograph of the Bryozoa (Polyzoa) of the Hunstanton 
lied Chalk/’ By George Bobert Vine, Esq. (Communicated by 
Prof. P. Martin Duncan, F.B.S., E.G.S.) 
The fossils examined occurred on tests of Echinoderms and on 
the shells of Terebratula biplicata , T. capillata , Oysters, Inocerami , 
Nautili , and Ammonites. The best of the forms of Diastopora 
and Proboscina are found on Inocerami and Ammonites, but the 
most abundant individuals are Stomatoporce , chiefly on Terebratula 
biplicata . Species of Entalophora , Idmonea , and “ Ceriopora ” are 
very rare or badly preserved, and Chilostomatous forms are also 
very rare. 
In the present monograph the Author felt obliged to limit or 
re-define the generic terms employed, and proceeded to describe in 
detail the forms which he has examined from the Hunstanton Bed 
Chalk and other Cretaceous deposits, including the following new 
forms : — Proboscina irregularis , P. uberta , P. gracilis ?, var. Reussi, 
P. claviformis , P. hunstantonensis , and var. ampliata , P. Jessoni , 
P, gigantopora, P. dilatata , var. cantabrigiensis , Diastopora hunstan- 
tonensis , D. foecunda , D. Jessoni , and Membranipora gaultina. 
April 16, 1890.— J. W. Hulke, Esq., F.B.S., Vice- 
President, in the Chair. 
The following communication was read : — 
‘‘On Ornithosaurian Bemains from the Oxford Clay of North- 
ampton.” By B. Lydekker, Esq., B.A., F.G.S. 
Seven vertebrae, portions of the ilia and ischia, one femur, and the 
distal portion of that of the opposite side, part of a bone, probably 
from the shaft of the tibia, and two undetermined fragments, all 
associated, indicate the existence in England during the Oxford-Clay 
period of the species of Rhampliorliynclius provisionally referred to 
R. Jessoni , though not definitely distinguished from R. Gemmiugi. 
Amongst the noticeable features of the specimens are the presence 
of a distinct rib-facet at the lateral border of the inferior surface of 
the centrum of the cervical vertebrae, proving the existence of cer- 
vical ribs, and the character of the neural spine of a dorsal vertebra, 
which strikingly recalls that of a bird. 
May 14, 1890.— Dr. A. Geikie, F.B.S., 
President, in the Chair. 
The following communications were read : — 
1. “On some new Mammals from the Bed and Norwich Crags.” 
By E. T. Newton. Esq., F.G.S. 
This paper contains descriptions of mammalian remains from the 
English Pliocene belonging to eight species, nearly all being new to 
