MONOGRAPH 



OP THE 



BRITISH FOSSIL BRACHIOPODA. 



BT 



THOMAS DAVIDSON, F.R.S., F.L.S., F.G.S., 



VICE-PRESIDENT OF THE PAL.EONTOGRAPHICAL SOCIETY ; MEMBER OF THE GEOLOGICAL SOCIETIES OF FRANCE, BELGIUM, 



EDINBURGH, AND GLASGOW; FOREIGN MEMBER OF THE PROVINCIAL INSTITUTE OF FRANCE ; OF THE LINNEAN SOCIETY 



OF NORMANDY; OF THE IMPERIAL MINERALOGICAL SOCIETY OF ST. PETERSBURG; OF THE IMPERIAL SOCIETY 



OF NATURALISTS OF MOSCOW ; OF THE EOYAL ACADEMIES OF BELGIUM AND BAVARIA ; OF THE ROYAL 



SOCIETY OF HOLLAND, HAARLEM ; OF THE ROYAL SOCIETY OF LIEGE ; OF THE ACADEMY OF ST. 



LOUIS; OF THE AMERICAN PHILOSOPHICAL SOCIETY, PHILADELPHIA; OF THE INSTITUTE OF 



ALBANY, UNITED STATES ; OF THE ZOOLOGICAL SOCIETY OF VIENNA ; OF THE PALjEONTO- 



GRAPHICAL SOCIETIES OF BELGIUM AND OF SWITZERLAND; OF THE MALACOLOGICAL 



SOCIETY OF BELGIUM; HON. MEMBER OF THE GEOLOGISTS' ASSOCIATION, 



LONDON ; OF THE DUDLEY AND MIDLAND GEOLOGICAL AND SCIENTIFIC 



SOCIETY; OF THE NATURAL HISTORY SOCIETY OF GLASGOW ; AND 



OF THE YORKSHIRE PHILOSOPHICAL SOCIETY, ETC. ETC. 



VOL. IV. 



PART IV. 



DEVONIAN AND SILURIAN BRACHIOPODA THAT OCCUR IN THE TRIASSIC 

 PEBBLE BED OF BUDLEIGH SALTERTON, IN DEVONSHIRE. 



Pages 317—368: Plates XXXVIII— XLII. 



LONDON : 

 PRINTED FOR THE PAL^ONTOGRAPHICAL SOCIETY. 



1881. 



