Krestennek

Krestennogyon yw divellkeynoges y'n isfylum Crustacea. Yma a-dro dhe 67,000 ehen y'n bagas,Zhang, Zhi-Qiang (2011) Phylum Arthropoda von Siebold, 1848, Animal biodiversity: an outline of higher-level classification and survey of taxonomic richness, Zootaxa, 4138 (99–103). ow komprehendya kankres, legesti, bibynes bubyn, sker ha gwrahes oles. Yma dew gopel a davellow dhedha ha rynnys yw aga garrow yn diw skorren dre vras.Barnes, Robert D. (1987) Invertebrate Zoology, 5es dyllans, Saunders College Publishing. Trigys yw an rann vrassa a grestenogyon y'n mor po yn dowr fresk. nebes anedha re removas dhe dir yn fast. Krestennogyon hag a vyw war an tir a gomprehend nebes kankres ha gwraghes oles. Varya a wrons yn aga myns yntra arvil gans hys a 0.1mm dhe evrik Nihon gan treuslinen garrow a 4.3 meter ha gravedh a 20 kg.   

An brassa rann a grestennogyon yw gwayadow, mes re a dheu ha bos stag wosa an studh pryv. Bernaklys yw krestennogyon a dheu has bos stag dhe veyn waran arvor. Teurogel yw nebes anedha, kepar ha low puskes ha preves taves. Dell yw usys, krestennogyon a's teves reydhow dyffrans, mes re anedha yw gourvenenrydh. Gori a wra aga oyow dhe breves. Avel tevesigyon, krestennogyon a wra mutya aga kregyn rag moghhe myns. 

Askorrys yw moy ages 10 milvil tonnas a grestennogyon gans pyskessa po ammeth rag boosa tus, an brassa rann anodho bibynes bubyn. Nyns eus meur a byskessa krill po kopepodow, kynth yns i an biomas eneval moyha war an planet, rann vewek a'n gadon voos. 
Taksonomieth krestennogyon
Tybys yw dell re esplegyas krestennogyon ha hwesker dhyworth hendas Pancrustacea. Yn hengovek nyns yw hwesker komprehendys yn krestennogyon, mes studhyansow TDN a-dhiwedhes re brevas an kolm.
 Klass  Eseli  Urdhow  Skeusen Ostracoda  Ostrakodow (Bibynes bubyn hasen)  MyodocopidaHalocypridaPlatycopidaPodocopida  200px|alt=A translucent, sculptured shell conceals a small animal. Some of its appendages extend beyond the shell.Cylindroleberididae (Myodocopida) Mystacocarida  Mystococaridans  Mystococarida 200px|alt=A line drawing of a dorsal view of a small animal with many segments and appendages.Derocheilocaris remanei Ichthyostraca  Preves taves ha low puskes CephalobaenidaPorocephalidaRaillietiellidaReighardiidaArguloida 200px|alt=A translucent, sculptured shell conceals a small animal. Some of its appendages extend beyond the shell.Armillifer armillatus (Porocephalida) Thecostraca  FacetotectaAscothoracidaBernaklys  FacetotectaDendrogastridaLauridaCryptophialidaLithoglyptidah.e.  200px|alt=A translucent, sculptured shell conceals a small animal. Some of its appendages extend beyond the shell.Perforatus perforatus (Cirripedia) Copepoda  Kopepodow  CalanoidaPolyarthraCyclopoidaGelyelloidaHarpacticoidaMisophrioidah.e.  200px|alt=A translucent, sculptured shell conceals a small animal. Some of its appendages extend beyond the shell.Cylindroleberididae (Calanoida) Tantulocarida  Tantulokaridians  200px|alt=Tantulus larva (Microdajus sp.)Microdajus sp. Malacostraca  StomatopodowDegkarrogyonKrillIsopodowBibynes bubyn kommaAmfipodowh.e.  StomatopodaDecapodaEuphausiaceaIsopodaCumaceaAmphipodah.e.  200px|alt=A small, curled-up animal has feathery appendages which it is holding at diverse angles.Ocypode ceratophthalma (Decapoda) Cephalocarida  Bibynes bubyn margh-horn  Brachypoda  200px|alt=Hutchinsoniella macracantha Branchiopoda  Bibynes bubyn finHwenn dowrBibynes bubyn penn duSpinicaudata  AnostracaNotostracaLaevicaudataSpinicaudataetc. 200px|alt=A microscopic, transparent, oval animal against a black background. The head has a large eye, antennae, and comes to a pointed beak. The rest of the animal is smooth round and fat, culminating in a pointed tail. The internal anatomy is apparent.Lepidurus arcticus (Notostraca) Remipedia  Remipedow  Nectiopoda†Enantiopoda 200px|alt=Speleonectes tanumekesEksludys yw hweghgarrogyon yn hengovek dhyworth krestennogyon Hexapoda  Lostow spryngPennow pigornLostow reunHwesker  OdonataOrthopteraColeopteraNeuropteraHymenopterah.e.  200px|alt=A translucent, sculptured shell conceals a small animal. Some of its appendages extend beyond the shell.Mantispa styriaca (Neuroptera)

Devynnow

Kevrennow a-ves
 (Sowsnek) Introduction to the Crustaceomorpha

Klass:Arthropoda