POLYCHAETE WORMS, PART 1 



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prostomium and first segment enclosing a retractile globular papilla 

 (not always visible). Parapodia with short rounded presetal lobe, 

 with a slender digitiform postsetal process on the anterior parapodia 

 (fig. GSh). The postsetal lobes rather prominent on about first 40 

 segments, gradually becoming smaller and reduced to a small papilla. 

 The lobes contain a vascular loop (they were referred to as a 1-lobed 

 branchia by Moore for Ninoe fusca); in the far posterior region, the 

 short postsetal lobe is more conspicuous (observed in a posterior frag- 

 ment). Anterior parapodia with limbate capillary setae. Middle 

 parapodia with some long-winged simple hooks (appear as worn or in- 

 completely formed limbate capillaries). More posterior parapodia 

 with short-winged simple hooks. Lower half of setae dark, distal half 

 yellow. Acicula black. Proboscis with maxillae ii each with 3 large 



Figure 68. — 'Lwmhnncudd.d, a-g, Ninoe nigripes {c-g, after Moore, MS.): a, dorsal view 

 anterior end; b, parapodium from branchial region, posterior view; c, limbate seta from 

 supraacicular group from setiger 8; d, long-winged hooded crotchet from setiger 8; e, short- 

 winged hooded crotchet from setiger 98; /, mandibles, from above; g, maxillae, from above. 

 h, Lumbrineris brevipes, parapodium from anterior region, posterior view. 



