NO, 1 HARTMAN : POLYCHAETOUS ANNELIDS 67 



3. O. aucklandensis Augener (1924, p. 418) from New Zealand. 



4. O. branchiata Tread well (1931, p. 317) from the Philippines. 



5. O. cirrobranchiata Moore (1903, p. 451) from Japan. 



6. O. dibranchiata Willey (1905, p. 277) from Ceylon. 



7. O. dorsalis (Ehlers) (1897, p. 71) from the Strait of Magellan. 



8. O. ehlersi (Mcintosh) (1885, p. 327) off Valparaiso, Chile, in 

 over 2,000 fms. (See also O. socia Chamberlin.) 



9. O. eremita Audouin and Edwards, p. 75. 



10. O. furcatoseta Monro (1937, p. 290) from the Red Sea. 



11. O . glutinatrix (Ehlers) (1887, p. 76) from off Florida. (Augener, 

 1906, p. 141, has enhanced the original description and referred it 

 to this genus.) 



12. O. inter?nedia Kinberg (1865, p. 560) off Rio de Janeiro, Brazil. 



13. O. investigatoris Fauvel (1932, p. 147) from the Persian Gulf. 



14. ? O. litabranchia Chamberlin (1919, p. 274) off Western Mexico, 

 in 1,879 fms. (The tj^pe is said to have only simple branchiae as in 

 Nothria, but the paratypes have compound filaments!) 



15. O. litoralis Monro, p. 72. 



16. O. magna (Andrews), p. 70. 



17. O. nannognathus Chamberlin ( 1919, p. 270) from the Gulf of Cali- 

 fornia. 



18. O. nebulosa Moore, p. 75. 



19. O. pachytmema Chamberlin (1919, p. 279) off Peru, in 2,370 fms. 



20. O. parva Moore, p. 70. 



21. O. pourtalesii (Ehlers) (1887, p. 74) from the West Indies. 



22. O. proalopus Chamberlin (1919, p. 265) off Peru, in 536 fms. 



23. O. quadricuspis Sars (1872, p. 407) from Norway. 



24. O. socia Chamberlin (1919, p. 284) off Peru, in 2,600 fms. (I am 

 unable to distinguish this from O. ehlersi (Mcintosh).) 



25. O. tenuis Hansen (1882, p. 10) from Brazil. (Augener, 1934, p. 

 390, has enlarged the original description, based on the type speci- 

 men.) 



26. O. teres Ehlers (1868, p. 293) from Sidney, Australia. 



27. O. verngreni Kinberg (1865, p. 560) off Rio de Janeiro, Brazil. 



28. O. vexillaria Moore, p. 80. 



9. O. willemoesi (Mcintosh) (1885, p. 322) from Amboina, Dutch 



East Indies. 

 30. O. zebra Berkeley, p. 71. 



In addition, O. tenuissima Grube (1868, p. 51) was described from 

 "Meere am Cap," but is too incompletely known to identify to genus; its 

 tube is translucent and resembles that of a Hyalinoecia. Only 5 (O. lita- 



