commonly known new_zealand new_zealand species slim pink lives coast new_zealand typically long weighs abdomen smooth adults white pink brown markings conspicuous pair long slim claws lives depths variety sediments individuals live years species shows low small numbers larvae hatch advanced stage significant prey item important fishery species human consumption catch year limitations new_zealand species collected challenger expedition described separate related species originally classified genus moved new genus species classified description slender typically centimetres long exceptionally weighing grams legs bearing main claws long narrow slightly unequal second pairs end small claws fourth fifth pairs smooth extends forwards long narrow slightly shorter adults white half sides abdomen pink bright red bands extend base posterior edge abdominal segments dorsal parts abdomen brown brown dorsal considered primitive morphology species having fewer oldest known fossil species longer species species group ridge small spines unlike species smooth abdominal covered fine life cycle reaches sexual maturity age years live years total females produce large eggs small numbers typically diameter blue colour larvae hatch stage equivalent species larvae long possess including swimming abdomen stage lasts days young post stage post post later adult form larvae rarely seen wild confirming development dwelling post rapid distribution ecology lives coasts new_zealand including depths metres lives variety suitable cohesive sediments significant prey item parasites important cause destruction skeletal heart muscles infected significance animals fishing industry remains unclear described isolated true fisheries harvested commercially 1980s season caught new_zealand increased kilograms catch limits introduced caught annually fishery centred areas continental shelf submerged continent campbell plateau coast fishing vessels capture metres long double triple low headline height considerable variation catch unit effort different depths different geographical areas different years considered luxury catch exported result rarely seen restaurants new_zealand subject select committee inquiry new_zealand parliament allegations corruption arose officers allegations inquiry ruled treatment given large fishing company response government introduced paid compensation fishermen justified overall limit place conservation currently listed concern iucn red list place new_zealand government species appear declining based counts analyses catch unit effort estimates total population size vary depending methods based indirect measures counts million individuals annual catch represent total population reliable figures based animals seen surveys million individuals available annual catch remove population new_zealand fishery included new_zealand sea lion considered vulnerable species iucn taxonomy described specimens collected challenger expedition benthic depth challenger plateau included report crustaceans collected challenger expedition separated described new species recognised covered species restricting species containing type specimens designated philippines created new species species new_zealand chose specimens seen type specimens new species females deposited london species transferred new genus extant species type species placed group genus alongside group species originated northern australia indonesia reached new_zealand late displaced lived recently findings molecular suggest basal position genus possibly linked genus originated high latitudes
Metanephrops challengeri