Bert Willaert / Segmented Blenny (Salarias segmentatus), Kimbe Bay, West New Britain, Papua New Guinea

Juan Manuel Borrero / Illustrations of pork tape worm (Taenia solium) with segmented body on the left, cross section of proglottid or body segment on the bottom middle and on the left illustrations of scolex or head. Penci...

Alex Mustard / Feather duster worms (Bispira brunnea) colony extended and filter feeding in the clear blue waters of The Bahamas, Caribbean Sea.

Pete Oxford / Christmas tree worm (Spirobranchus giganteus) on Star coral (Montastraea cavernosa) Bonaire, Netherlands Antilles, Caribbean

Pete Oxford / Christmas tree worm (Spirobranchus giganteus) on Star coral (Montastraea cavernosa) Bonaire, Netherlands Antilles, Caribbean

Birgitte Wilms / Red-spotted Blenny (Salarias segmentatus)in its burrow, Solomon Islands

Mark Taylor / Tiger leech {Haemadipsa picta} on leaf. Borneo.

David Hall / Yellowline arrow crab (Stenorhynchus seticornis) feeding on an unidentified segmented worm, probably a polychaete tube worm (Sabellidae), Dominica, Caribbean, Western Atlantic Ocean.