Tharyx multifilis Moore 112 



Tharyx parvus Berkeley 113 



Tharyx tesselata Hartman 113 



Tharyx tnonilaris Hartman 113 



Genus Raricirrus, new genus 114 



Raricirrus maculata, new species 114 



Family FLABELLIGERIDAE 115 



Genus Flabelligera Sars 116 



Flabelligera cotntnensalis Moore 117 



Flabelligera essenbcrgae, new name 118 



Genus Pherusa Oken 120 



Pherusa papillata (Johnson) 120 



Pherusa neopapillata, new species 121 



Genus Piro/nis Kinberg 122 



Piro/nis americana (Monro) , new combination . . . . 123 



Pir otitis gracilis, new species 123 



Family CAPITELLIDAE 124 



capitellid, genus and species unknown 125 



Family MALDANIDAE 126 



Genus Clymenella Verrill 126 



Clytnenella cincta (Saint-Joseph) 126 



EUCLYMENINAE, genus and species undetermined . . 126 



Family AMPHARETIDAE 127 



Genus A mpharete Malmgren 127 



Ampharete labrops, new species • . 127 



Family TEREBELLIDAE 128 



Genus Streblosoma Sars 128 



Streblosoma crassibranchia Treadwell 128 



Family SABELLIDAE 129 



Genus Distylidia, new genus 129 



Genus Potamilla Malmgren 129 



Potamilla sp 129 



Family PROTODRILIDAE 130 



Genus Saccocirrus Bobretzky 130 



Saccocirrus papilloccrcus Bobretzky 130 



Family DINOPHILIDAE 130 



Genus Dinophilus O. Schmidt 130 



Dinophilus gyrociliatus O. Schmidt . • 130 



Literature Cited 131 



Plates 139 



Index -209 



