MONOGRAPH 



LIAS AMMONITES 



THE BRITISH ISLANDS. 



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



VICE-PRESIDENT OF THE PAL/EONTOGRAPHICAL SOCIETY; CORRESPONDING MEMBER OF THE ROYAL SOCIETY OF SCIENCES 



OF liege; THE SOCIETY OF NATURAL SCIENCES OP NKUCHATEL; 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 FIFTH— DESCRIPTION OF SPECIES. 



Pages 329—400 ; Plates XLIX— LII, LIIa, LIII— LXIX. 



LONDON: 

 FEINTED FOR THE PAL^ONTOGEAPHICAL SOCIETY, 



1882. 



