FAMILY PARAONIDAE 

 Key to genera and species 



1 Prostomium with a median dorsal antenna (may be lost) 2 



1' Prostomium without an antenna 8 



2 Posterior notosetae include specialized forms as well as 



capillaries; posterior neurosetae as capillaries only (Cirro- 



pliori(s) 3 



2' Posterior notosetae are all capillaries. Posterior neurosetae 



include specialized forms as well as capillaries (Aiicidca) 4 



2" No specialized setae in notopodia or neuropodia of posterior 



segments, only capillaries (Aedicira) 7 



3 Specialized notosetae forked. [Body reddish] C. li/rifdrDiis 



3' Specialized notosetae stout, pointed and acicular with a fine 



subterminal filament C. b)'(iiicliiatiis 



4 Specialized neurosetae with hoods or guards 5 



4' Specialized neurosetae without hoods but sometimes acicular 



or abruptly tapered to a slender filament 6 



5 Specialized neurosetae with a rounded spioniform hood en- 



closing a bent unidentate end Ar. ccrnitii 



5' Specialized neurosetae with a long pointed guard covering 



convex side of rostrum Ar.faKrcli 



6 Specialized neurosetae with a stout shaft tapering to a slender 



blade with an oblique breaking plane at junction Ar.fmgilis 



6' Specialized neurosetae in anterior abdomen with a stout shaft 

 abruptly tapering to a slender filament; in posterior seg- 

 ments only the stout sigmoid shaft persists Ar. snccica 



7 Setigers 1-3 with a cirriform postsetal lobe on neuropodium Ac alhatrossae 



T Merely a minute postsetal papilla on neuropodium of anterior 



segments Ae. belgicae 



8 Posterior notosetae include specialized forms (Pcuxiotiides) No N.C. record 



8' Posterior neurosetae include specialized forms {Paraonis). 



[Specialized neurosetae as sigmoid acicular hooks] 9 



9 Branchiae cirriform beginning on setiger 6-8 and numbering 



9-16 pairs P. gracili.<i 



9' Branchiae compressed and lamelliform beginning on setiger 4 



and numbering 16-25 pairs P. fulgcnft 



Cirrophorus lyriformis {Annenkoya. i9:U) Cirroplioriis lyriforDiis. - Hartman, 1965a: 138. 



Ci I'i'oph i>rn t^furca t II s. -HArtman. 1969: 69, Fig. 1. 

 Aricidea (CiiTophontH) fiircata Hartman, 1957: 



324, pi. 43: Fig. 6. Record^.— Oii Beaufort in 10-120 m (21, *). 



92 



