TABLE OF CONTENTS. 



Page. 

 PART I. — The gigantic squids (Architeuthis) and their allies ; with observations on similar large 



species from foreign localities [1] 



General description of the several American specimens, and of their occurrence [5] 



Comparative measurements of the specimens [22] 



Special descriptions of the Atlantic coast species [23] 



Observations on the specimens described from foreign localities: 



A. — Atlantic Ocean species [51] 



B. — Examples from the Indian Ocean and New Zealand [63] 



C. — Examples from the North Pacific [65] 



D. — Note on large species of Octopus [71] 



PART n. — Monographic revision of the Cephalopoda of the Atlantic coast, from Cape Hatteraa 



to Newfoundland [73] 



Dibranchiata [73] 



Order I. — Decacera [75J 



Order II.— Octopoda [177] 



Supplement [199] 



Conspectus of the families, genera, and species of Cephalopoda included in this paper. [221] 



Explanation of plates [226] 



Index [243] 



[241] 451 



