Polychacta. 



263 



7. Typo^iilUs hijaUna (Grube) 



8. L'mt/Uis kcrgiiL'Jcnsis, Mclntosli 



9. Aricia ritarginata, Ehlers 



10. Scoloplos ker(/iit'Iensis, Mcintosh 



11. Traviski ken/velcnsis, Mcintosh 



12. Bhodine loveni, lVlalmf;ren 



13. Tlielepus antarcticiis, Kinl)erg . 



14. Nicolea agassizi, Kinberg 



15. Ereutho antarctica, n. sp. 



Remarks on Hermadion Jongicirratus, Kinberg 

 Eemaiks on Lagisca vesiculosa (Grube) . 

 Addendum (Oxydromus aucklandicus, n. sp.) 



PAGK 



274 

 274 

 275 

 275 

 276 

 27G 

 278 

 279 

 281 

 266 

 266 

 281 



POLYNOIDAE. 



The Polynoidae, considered as an independent family of the great 

 division of the Aphroditea, comprise three sub-families, namely, 

 Ipliionina, Sav., characterised by the absence of a tentaculum imjxir 

 on the prostomium ; Lcpidonotina [n. n.], in which the bases of the 

 lateral antennae arise at the same level as the median tentaculum 

 from the frontal margin of the head ; Harmothoina [n. n.], where the 

 antennae arise at a lower level than the tentaculum, below the 

 frontal margin. Both Lepidonotina and Harmothoina produce short 

 and long forms,^ e.g., Lepidonotus and Lcindasthcnia of the former 

 sub-family, Harmothoe and Envpo of the latter. The present 

 collection contains examples of the Harmothoina hrcvia only. 



Series HARMOTHOINA BREVIA. 



Segmeuta pauciora quam XLV ; elytra [laria XV, in segmentis II, IV, V, VII, 

 IX, XI, XIII, XV, XVII, XIX, XXI, XXIII, XXVi, XXIX, XXXII, obvia. 



The buccal segment, whose appendages are the cirrophores, each 

 carrying two tentacular cirri, is reckoned as the first somatic segment 

 by some authors, but not by others. It is not seen in dorsal view. 



Harmothoe. 



Kinberg, 1855, char, emend. Malmgren, 1865. 



Setae superiores vahdae, crassiores quam setae ventrales ; setae veutrales apice 



distincte vel obsolete bidentato ; elytra totum dorsum tegeutia, segmeutis 



ultimis interdum exceptis. 



The insertion of the last reservation in the above diagnosis seems 

 to be rendered necessary by the examination of specimens from the 



^ Oligomeric and polymeric, according to the nomenclature introduced by 

 de Plainville and adopted by Claparede. 



