REVISION OF PILARGIDAE PETTIBONE 



189 



ophores indistinctly set off from rest of prostomiuin and small 

 palpostyles; medimn antenna on posterior part of prostomiimi, ex- 

 tending to tips of palps; lateral antennae more anterior and slightly 

 shorter than median antenna. Tentacular segment achaetous, longer 

 than following, with 2 pairs of subequal tentacular cirri, similar to 

 median antenna. Dorsal cirri of first setigerous segment longer than 

 following. 



Figure 18. — Sigamhra wassi, new species {a, from holotype; b-e, from paratype): a, para- 

 podium from setiger 50, with intestinal caeca and eggs indicated; b, lateral view anterior 

 end; c, dorsal view posterior end; d, parapodium from posterior region; e, notosetae from 

 same. 



Parapodia subiramous, as long as body width, thick, with large 

 intestmal dark caeca and with eggs in base (in holotype). Notopodial 

 lobe low, indistinct, with notoacicula curving distally, with emergent 

 acicular seta visible externally about setiger 25 (2.3/25 in holotype, 

 30/31 in paratype); in addition, with extra single curved pomted 



