REVISION OF PILARGIDAE — PETTIBONE 



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first setiger about twice as long as following. Dorsal cirri fusiform, 

 short, extending slightly beyond neuropodial lobes. Notopodia with 

 somewhat inflated notoacicular lobes and emergent hooked setae 



Figure 3. — Ancistrosyllis groenlandica {a, from specimen from Delaware sta.; b-f from speci- 

 men from Albatross sta.): a, dorsal view anterior end; b, same, from another specimen; 

 c, ventral view anterior end; d, middle parapodium; e, notopodial hooked seta;/, neurosetae. 



beginning on setiger 4 to 6. Neuropodial lobe conical, with neuro- 

 aciculum and neurosetae variable in length; shorter ones wider, 

 tapering to slightly hooked tips, famtly spinous; longer ones more 

 slender, smooth or very finely spinous, with fine slightly hooked tips. 



