188 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 10 



1. D. angolana (Augener), first described from West Africa, reported 

 from Colon, Panama (Monro, 1933, p. 93). (This may be con- 

 specific with D. cerasina (Ehlers).) 



2. D.annulata (Moore) (1906, p. 225) from Washington. 



3. D. articulata (Hartman), p. 189. 



4. D. australiensis (Mcintosh), first described from Bass Straits, re- 

 ported from Juan Fernandez (Augener, 1913, p. 299). 



5. D. bioculata (Grube) (1856, p. 62) from Puntarenas, Costa Rica. 



6. D. caeca (Webster and Benedict) (1884, p. 721) from Massa- 

 chusetts. 



7. D. cerasina (Ehlers), p. 190. 



8. D. erythrops (Verrill) (1900, p. 649) from Bermuda. (This is in- 

 distinguishable from D. melanops, below.) 



9. D. gracilis (Hartman), p. 189. 



10. D. grubei (Kinberg) (1865, p. 574) of? Brazil. 



11. D. melanops (Verrill) (1900, p. 648) from Bermuda. 



12. D. moniloceras (Moore), p. 190. 



13. D. pallida (Verrill) (1873, p. 595) from New England. (This 

 may be conspecific with D. rudolphii (delle Chiaje).) 



14. D. polydonta (Verrill) (1900, p. 650) from Bermuda. (This is 

 probably identical with D. rudolphii [Fauvel, 1923, p. 446].) 



15. D. pseudorubrovittata Berkeley (1927, p. 409) from Nanaimo, 

 British Columbia. 



16. D. rubra (Grube) (1856, p. 60) from St. Croix, West Indies. 



17. D. rubrovittata (Grube), p. 190. 



18. D. rudolphii (delle Chiaje), p. 191. 



19. D. sociabilis (Webster) (1879, p. 243) from Virginia. 



20. D. vittata (Grube) (1856, p. 61) from Puntarenas, Costa Rica. 

 Among those listed above, the following are known to have forked 



setae : D. annulatus, D. articulata, D. caeca, D. rudolphii, and D. pallida. 

 The following lack forked setae: D. angolana, D. cerasina, D. monilo- 

 ceras, D. pseudorubrovittata, D. rubra, and D. vittata. 



Two other characters of outstanding significance are presence or ab- 

 sence of dorsal cirrophore and dorsal acicula, and presence or absence of 

 eyes. In the list above, only one species, D. gracilis, lacks dorsal cirro- 

 phore and dorsal acicula, and only one, D. caeca, lacks eyes. 



Key TO Species of Dorvillea 

 1. Prostomium without eyes; parapodia with some simple forked 



setae D. caeca (Webster and Benedict) 



1. Prostomium with eyes 2 



) , 



