NEWTON : CONCHOI.OGICAL FEATURES OF LENHAM SANDSTONES. 



145 



F/^^. 14. — Magnified sculpture of same, showing microscopical strife 

 and punctations. From a gutta-percha model. 



[M.P.G., No. 407]. 



Terei!Ratula perforata Desnoyers. 



Fig. ij. — A sandstone cast of a pedicle valve, showing internal fea- 

 tures, muscular scars, elongate divergent striations (=pallial 

 grooves), and numerous concentric growth lines. 



[M.P.G., No. 400]. 



Fig. 16. — Front view of summit region of same specimen, showing 

 the large perforation and oblique lateral margins. 



Fig. 77. — A fragmentary internal cast of another specimen, belonging 

 to the basal region, in which the radial striations are very 

 numerous, as well as the lines of growth, which are nearly 

 horizontal in the centre, and so indicating biplication of the 

 frontal region. [M.P.G., No. 400]. 





Index. 









page 



page 



fage 



ACT.-EON 62, 78 



ASTARTID.^ ... 



100 



Box-stones ...60- 



-66 



ACTyEONID.E 78 



aiirantiiim, Fascicu- 





Brachiopoda 60, 



no 



Actinozoa 58 



LARIA 



58 



Bristow, W. 



61 



acuminata, Terebra 



auriculata, Margi- 





British Museum .. 



57 



63, 65, 78 



NELLA 



79 



Broeck, E. Van den 





Aequipecten ... q8 



AVICULA 63 



97 



64, 65, 



115 



agglutinans, Phorus 61 



aviculal Pecten 



60 



bruei, Pecten ... 



60 



Allen, H. A. ... 58 



AVICULID.E ... 



97 



biiccinea, Voluta 



79 



Ampuli.otkochus 68 



badensis, MuREX 



75 



BUCCINUM ... 62, 



74 



Anadara .. 65, 83 



badensis, OciNEBRA 



75 



Bulla 



80 



ANATINID/E ... log 



Baily, W. H. ... 



61 



Bullinella 



80 



angnsta, Cyrtodaria 107 



barbata, VoLSELLA 



84 



Calais ... 56, 59 



60 



angusta, Glycimeris 107 



barbatus, Mytii.us 



84 



Calliostoma ... 



68 



angustidens, Masto- 



Barnea 



108 



Callista... 



105 



don 116 



basteroti, Astarie 





canariensis, CuPU- 





Anomia 82 



(^l, 



100 



laria .. 



58 



ANOMIID^ ... 82 



Belgium ... ... 64 



65 



Cancei.laria 62, 65 



76 



Antwerp ... ... 61 



Bell, A 



116 



CANCELLARIID/E 



76 



APORRHAIID.E 73 



Bell, R. G. 



116 



Capiluna ... 66 



67 



Aporrhais ... 62, 73 



ben edeni, T e l L i N A 





CAPULIDyE ... 



69 



Arca ... 60—65, 83 



63, 



103 



Capulus 



69 



ARCID/E ... ^2, 



Bibliography 



59 



CARDIID.rE ... 



106 



ArCOPAGIA ... 102 



Black Crag 



61 



Cardita 



63 



arcuata, Mactra 63, 104 



, Bolderian 64 



>65 



CARDITID.-E ... 



99 



arcuata, Spisula 104 



Bonellitia 



76 



Cardium 





Artemis 63 



borealis, Dentilu- 





60, 62, 6t,, ioi, 



106 



AspiDOPHOLAS ... 108 



CINA 



102 



Caientan Beds 



59 



Astarte 



boTealis, Venus ... 



102 



Cassel Hill 56, 59 



60 



59, 60, 63, 100, loi 



Boreotrophon ... 



75 



Cassidea 



73 



aj/ar/^rf.^DlPLODONTA 63 



Boulogne 56, 59 



, 60 



CAS.SIDID.E ... 



J 



