MONOGRAPH 



LIAS AMMONITES 



THE BRITISH ISLANDS. 



THOMAS WRIGHT, M.D., F.R.S., F.G.S., 



VICE-PRESIDENT OF THE PALJEONTOGRAPHICAL SOCIETY; CORRESPONDING MEMBER OF THE ROYAL SOCIETY OF SCIENCES 



OF LIEGE; THE SOCIETY OF NATURAL SCIENCES OF NEUCHATEL ; VICE-PRESIDENT OF THE COTTESWOLD 



NATURALISTS' FIELD CLUB; CONSULTING SURGEON TO THE CHELTENHAM HOSPITAL; 



AND MEDICAL OFFICER OF HEALTH TO THE URBAN SANITARY DISTRICTS 



OF CHELTENHAM. CHARLTON KINGS, AND LECKHAMPTON. 



PART SEVENTH— DESCRIPTION OE SPECIES. 



Pages 441—480 ; Plates LXXVIII— LXXXVII. 



LONDON: 

 PRINTED FOE THE PAL^ONTOGRAPHICAL SOCIETY. 



1884. 



