MEMOIRS 



OF THE 



GEOLOGICAL SURVEY OF INDIA. 



ah0ntir(0gia ^nVitu, 



BEING 



PIGUEES AND DESCRIPTIONS OP THE ORGANIC REMAINS PROCURED DURING 

 THE PROGRESS OP THE GEOLOGICAL SURVEY OP INDIA. 



PUBLISHED BY ORDER OB" HIS EXCELLENCY THE QOVEENOE G-ENBEAL OF INDIA IN COUNCIL. 



TERTIARY AND UPPER CRETACEOUS FOSSILS OP 



WESTERN SIND. 

 Ser. XIV. 



VoL I. 3. THE POSSIL ECHINOIDEA. 



Fasciculus IV. THE POSSIL ECHINOISEA FROM THE NARI SERIES, 

 THE OLIGOCENE FORMATION OP WESTERN SIND. 



WITH 5 PLATES. 



BY 



P. MARTIN DUNCAN, M.B. (Lond.), P.R.S., F.G.S., V.P.L.S., 



PROFESSOR or GEOLOGY IN, AND FELLOW OF, KINg's COLLEGE, LONDON ; LECTUEER ON GEOLOGY IN THE 

 ROYAL INDIAN ENGINEERING COLLEGE, COOPER's HILL; CORRESPONDENT OF THE 

 ACADEMY OF NATURAL SCIENCES OF PHILADELPHIA, ETC. 



AND 



W. PERCY SLADEN, P.L.S., F.G.S., &c. 



CALCUTTA: 



SOLD AT THE 



OFFICE OF SUPEEINTENDENT OF GOVERNMENT PRINTING; 



GEOLOGICAL SUEVEY OlfPICE; AND BY ALL BOOZSELLEES; 



LONDON: TRUBNER & CO. 



MDCCCLXXXIV. 



PBIMTED BY TAYIOS AHD rKANCIS, BED LION OOUET, FLEET STBEBT, LOHDOIT. 



