114 Geological Society. 



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

 lied Chalk." By George Eobert 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 Terehrahda bipllcata, T. capillata. Oysters, Inocerami, 

 Nautili, and Ammonites. The best of the forms of Dinstopora 

 and Prohoscina are found on Inocerami and Ammonites, but the 

 most abundant individuals are Stomatoporce, chiefly on Terehratula 

 biplicata. Species of EntalopJiora, 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 Red 

 Chalk and other Cretaceous deposits, including the following new 

 forms : — Prohoscina irregularis, P. uherta, P. gracilis ?, var. lieussi, 

 P. claviformis, P. hunstantonensis, and var. ampliafa, P. Jessoni, 

 P. gigantopora, P. dilatuta, var. cantahrigiensis, Diastojyora hunstan- 

 tonensis, D. foecuncla, 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 Remains from the Oxford Clay of North- 

 ampton." By R. 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 BhampJiorhynchus provisionally referred to 

 a. Jessoni, though not definitely distinguished from P. Gemmingi. 



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. 



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 



