320 A. E. Verrill — New England Annelida. 



1879. — A. E. Vekrill, Notice of Recent Additions to the Marine 

 Invertehrata of the Northeastern Coast of America., with 

 Descriptions of new Genera and Species, and Critical 

 MemarJcs on others. Part I. — Annelida, Gephyrma, 

 Nemertina, etc.<^Proceedings of United States National 

 Museum, vol. ii \^p>p. 165-205. Nov., 1879]. 



List of Sp>ecies. 

 Sthenelais gracilis V,, sp, nov., p. 166. 

 Sthenelais Emertoni V., sp. nov., p. 166. 

 Sthenelais picta V., p. 167 (descr.) 

 Sigalion arenicola V., sp. nov., p. 167. 

 Lmtmatonice armata V., sp. nov., p. 168. 

 Eunoa spimdosa V., sp. nov., p. 169. 

 AutolytKS ornatus V., sp. nov., p. 170 (name preoccupied). 



=r[Aiitolytns varians V., nom. nov.] 

 Odontosyllis lucifera V., p. 170 (Eusjllis lucifera V., 1875). 

 PcBdophylax longiceps V., sp. nov,, p. 170. 

 Nereis alacris V., sp. nov., p. 171. 



=[Nereis megalops V., nereis-form.] 

 Nereis megalops V., p. 172 (Nectonereis megalops V., 1873.) 

 Ceratocephale Websteri V., sp. nov., p. 172. 



Lumbrinereis hebes V., p. 174 (L. obtusa V., 1875, name preoccupied). 

 Goniada gracilis V., ix 174 (Eone gracilis V., 1873). 

 Poly dor a gracilis V., sp. nov., p. 174. 

 Polydora conchannn V., sp. nov., y:>. 174. 



=:[Dipolydora* concharuni V.] 

 Spio limicola V., sp. nov., p. 176. 



Spiophanes tenuis V., sp. nov., p. 176. =[Prionospio tenuis V.] 



Heterocirrus fimhriatus V., sp. nov., p. 177. 

 Dodecaceria concharum, ]). 178 (descr.) 

 Praxillura ornata V., gen. et sp. nov., p. 179. 

 Maldane filifera V., sp. nov., p. 179. 

 Notomastus gracilis V., sp. nov., p. 180. 

 Polycirrus phosphoreus V., sp. nov., p. 181. 



* The genus Dipolydora is established for this species. It differs from typical 

 Polydora, especially iu having four groups of setse on each side of the large, specialized, 

 fifth segment, showing plainly that this is composed of at least two united segments. 

 The caudal segment bears four flattened lobes, instead of a sucker. The body is very 

 long, and consists of an unusually large number of segments. The structure, in 

 general, is modified to suit the habit of Uving in galleries excavated in shells or 

 limestone. 



