114 Geological Society. ' 



2. " A Monograph of the Bryozoa (Polyzoa) of the Hunstanton 

 lied Chalk." By George Robert Vine, Esq. (Communicated by 

 Prof. P. Martin Duncan, F.E.S., F.G.S.) 



The fossils examined occurred on tests of Echinoderms and on 

 the shells of Terebratula hiplicata, 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 

 hiplicata. Species of Entulophora, 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 

 rc-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: — -Prohosrina irreijularis, P. vberta, P. [/racilis?, var. Penssi, 

 P. claviformis, P. hvnatantonensis, and var. ampliata, P. Jessoni, 

 P. gigantopora, P. dilatata, var. cantahrigiensis, Diastopora Juoistan- 

 tonensis, B. foecxincla, D. Jessoni, and Memhranipora gaultina. 



April 16, 1890.— J. W. Hulke, Esq., F.R.S., Vice- 

 President, in the Chair. 



The following communication was read: — 



" On Ornithosaurian Ecmains from the Oxford Clay of Xorth- 

 ampton." By B. Lydekkcr, Escp, 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 frngments, all 

 associated, indicate the existence in England during the Oxford-Clay 

 period of the species of Uhamphorhgnchus provisionally referred to 

 R, Jesso)ii, though not definitely distinguished from P. Gemyuiugi. 



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 vertebra^ 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.R.S., 

 President, in the Chair. 



The following communications were read : — 



1. "On some new Mammals from the Red 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 



