POLYCHAETE WORMS, PART 1 



201 



acL 



pLa 



N'«»\/ OLO 



Figure 51. — Nephtyidae, a, Nephtys incisa, middle parapodium, anterior view, b, Nephtys 

 caeca, parapodium from anterior region, anterior view, c, Nephtys ciliata, parapodium 

 from anterior region, anterior view, d, Nephtys hucera, middle parapodium, anterior view. 

 e-f, Nephtys discors: e, middle parapodium, anterior view; /, posterior parapodium, anterior 

 view. 



neuropodial acicular lobes conical. Anterior lamellae rudimentary; 

 posterior lamellae simple, romided, sliortcr than acicular lobes. Tips 

 of acicula covered by yellow chitinous plates. Preacicular setae short, 

 barred; postacicular setae longer, finely spinous. Ventral cirri 

 short, triangular; dorsal cirri flattened, triangular, pointed. Branchiae 

 begin on setigers 8-14, short, triangular at first, then become wide, 

 foliaceous, absent on last 15-40 segments. 



