Geological Society of London. 377 



2. " On some Fossil Calcisponges from tlie Well-boring at Eich- 

 mond, Surrey." By Dr. G. J. Hinde, F.G.S. 



Numerous specimens of diminutive sponges were met with in a 

 band of calcareous shale in the Eichmond well-boring, at a depth 

 of 1205 feet beneath the surface. They proved to be all Calci- 

 sponges belonging to Zittel's family of Pharetrones. Five species, all 

 new, were described, and referred to the genera InohoHa, Peronella, 

 Blastinia, and Ocidospongia. The spicular structure of the fibres 

 can be seen in microscopic sections of the different species, and ia 

 some examples even the spicules of the dermal layer are preserved. 

 From the general facies of the specimens, and the fact that one 

 species is closely allied to Blastinia costata, Goldf., from Lower 

 Jurassic strata at Streitberg, the author thought it probable that the 

 stratum in which tlie sponges occur is of Lower Jurassic age. 



3. " On the Foraminifera and Ostracoda from the Deep Boring at 

 Eichmond." By Prof T. Eupert Jones, F.E.S., F.G.S. 



From some strata at three special depths (§ i. 1145' 9'' to 1146'^ 6"; 

 § ii. 1151^^ to 1151'' 6''; and § iii. 1205') in the deep boring at 

 Eichmond, several Foraminifera and Ostracoda have been obtained 

 by Prof. Judd, but they do not present any very special character- 

 istics recognizable as belonging to particular horizons. The 

 Foraminifera comprise sevei'al common forms or varieties of Cn's- 

 tellaria, C. rotulata occurring at each of the depths alluded to. 

 Specimens of the Nodosarina^ occur very rarely in the lowest stratum 

 of the three ; also Spirillina, Pulvinulina (of the elegans type), several 

 small individuals of Planorbulina Haidingeri, and vars., and one small 

 Miliola. 



Of the Ostracoda there are several forms not previously published ; 

 and, for the most part, they differ in the three stages alluded to ; but 

 one Cythere occurs in § i., § ii., and § iii. ; one in § i. and § iii. ; and 

 a Cytherella in § ii. and § iii. 



Excepting a general Upper Mesozoic aspect, these limited groups 

 offer no special characteristic so far as yet examined. 



4. " Polyzoa (Bryozoa) found in the Boring at Eichmond, Surrey, 

 referred to by Prof. J. W. Judd, F.E.S." By G. E. Vine, Esq. 

 Communicated by Prof. Judd, F.E.S. , Sec. G.S. 



The Bryozoa from the Eichmond well, which are in an admirable 

 state of preservation, include no less than 14 different forms, most 

 of which are characteristic of the Great Oolite of this country, and 

 the Continent. Two or three forms, however, are new, and detailed 

 descriptions were given of them in the present paper. Six of the 

 forms found at Eichmond occur also among the fossils collected by 

 the late Mr. C. Moore from the Oolitic rock met with in the boring 

 at Messrs. Meux's brewery. 



5. " On a new species of Conoceras from the Llanvirn beds, 

 Abereiddy, Pembrokeshire." By T. Eoberts, B.A., F.G.S. 



This new species of Conoceras was obtained by the author from 

 a new quarry about half a mile to the north-west of the Llanvirn 

 quarry, Abereiddy. 



The fossil consists in great part of a mould of the shell, together 



