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PROCEEDINGS OF THE NATIONAL MUSEUM 



(buccal cirri) similar to lateral antennae and with oval glandular 

 organs on ventral sides of cirrophores. 



Elytra usually missing; according to St0p-Bowitz, rather large, 

 translucent, with small warty papillae; elytrophores cylindrical, up to 

 18 pairs when fully formed, arranged as indicated in generic diagnosis. 

 Dorsal cirri with cylindrical cirrophores; styles long, tapering, smooth, 

 extending to tips of setae. Ventral cirri in middle of neuropodial 



Figure 25. — Podarmus ploa: a, middle parapodium of cirrigerous segment, anterior view, 

 style of dorsal cirrus missing (tips of neurosetae not shown; acicula and glandular areas 

 indicated); h, same, posterior view. 



lobes, tapering, smooth, shorter than setal lobes. Parapodia sub- 

 biramous; notopodia short, conical, on anterodorsal side of neuro- 

 podia, with notoacicula only, without notosetae. Neuropodial lobe 

 elongated, flattened anteroposteriorly, split terminally into longer 

 presetal and shorter postsetal hps, with elongated inflated glandular 

 areas distal to notopodial lobe, with stout neuroaciculum extending 

 into postsetal lip, with fan-shaped bundle of neurosetae. Neuro- 

 setae of 2 kinds: lower ones shorter, stouter, with a few heavy widely 

 spaced spinous rows (3-4), with tips slightly hooked, sometimes 



