TABLE OF CONTENTS. 



Page 



Introduction 13 



Lists of Species 14 



Expedition of 1890-1891 ... 14 



Expedition of 1899-1900 ... 14 



Expedition of 1904-1905 ... 15 



Atlantic Expeditions, 1884-1887 . 16 



Bathymetrical Distribution .... 16 



Littoral Zone, 0-50 fms. ... 16 



Continental Zone, 50-500 fms. . 16 



Abyssal Zone, below 500 fms. . 16 



Pelagic Zone IS 



Classification 18 



Key to the Families 19 



Amphinomidae 23 



Key to Genera 25 



Synonymy of Genera 25 



Notopygos Grube 25 



N. maculata (Kinberg) 26 



Hermodice Kinberg 26 



H. striata Kinberg 26 



Amphinome Bruguiere 26 



A. vagans (Savigny) 27 



Eurj'thoe Kinberg 27 



E. complanata (Pallas) 28 



Chloeia Savigny 30 



C. entypa, sp. nov 31 



Euphrosynidae 32 



Key to Genera 32 



Euphrosyne Savigny 32 



E. panamica, sp. nov 33 



Polynoidae 35 



Key to Genera 37 



Synonymy of Genera 40 



Plotolepis, gen nov 40 



P. nans, sp. nov 41 



Podarmus, gen. nov 45 



P. ploa, sp. nov 46 



Harmopsides, gen. nov 48 



natans, sp. nov 48 



Harmothoe Kinberg 51 



