Akoonu
Awọn echinoderms tabi echinodermata Wọn jẹ awọn ẹranko inu omi invertebrate ṣugbọn wọn ni dermoskeleton kan. Iru ẹranko ẹranko yii ni awọn pẹlẹpẹlẹ calcareous tabi awọn granules spiny ti o tuka kaakiri gbogbo ara. Nitorinaa orukọ rẹ: echinoderm, eyiti o tumọ si “awọ ti a fi ẹgun bo”.
Awọn awo -itọju calcareous jẹ ti kaboneti kalisiomu ati, diẹ ninu wọn, n ba ara wọn sọrọ bi ninu ẹja irawọ, lakoko ti awọn miiran ti wa ni welded ti o ni iru ikarahun bi ninu ọran ti awọn urchins okun.
Awọn echinoderms wọn le gbe nikan ni agbegbe okun. Awọn gbigbe wọnyi nipa jijoko lori isalẹ ti agbegbe okun ati irisi ẹda wọn jẹ asexual, ni awọn igba miiran ti o ni agbara lati tun sọtun, bii ọran pẹlu ẹja irawọ.
- O le ṣe iranlọwọ fun ọ: Awọn ẹranko Arthropod.
Bi wọn ṣe jẹ?
Echinoderms ṣe afihan isọdi radial, ni pataki diẹ sii wọn jẹ iṣọkan pentaradially. Iyẹn ni, awọn ẹya ara wọn wa ni ayika aarin kan.
Wọn ko ni ori tabi ọpọlọ. Sibẹsibẹ, wọn le woye ohun ti n ṣẹlẹ ni ayika wọn nipasẹ awọn sẹẹli ara ti o gba alaye lati agbegbe wọn. Wọn tun ko ni ọkan lati igba ti eto iṣọn -ẹjẹ wọn ti ṣii.
Awọn apẹẹrẹ ti echinoderms
- Eja irawo
- Irawọ Comet tabi guildingi Linckia
- Orthasterias koehleri
- Snuffbox
- Ofiura
- Lili okun
- Ede Flamenco
- Ni ibamu
- Ede Flamenco
- Comatula Mẹditarenia
Awọn apẹẹrẹ ti echinoderms ni ibamu si awọn abẹ
Awọn lili okun
- Davidaster rubiginosus
- Endoxocrinus parrae
- Himerometra robustipinna
- Lamprometra palmata
- Celpt leptometra
- Ptilometra australis
- Stephanometrist tọkasi
- Tropiometra carinata
Starfish tabi Asteroid. Wọn ti pin si awọn aṣẹ:
- Bere fun Brisingida, nibiti awọn eya 111 wa
- Bere fun Forcipulatida, pẹlu awọn eya 269
- Bere fun Paxillosida, awọn eya 372
- Bere fun Notomyotida, awọn eya 75
- Bere fun Spinulosida, eya 121
- Ibere Valvatida, pẹlu awọn eya 695
- Bere fun Velatida, pẹlu awọn eya 138
Diẹ ninu awọn eya ni:
| Asterias forbesi | Linckia multifora |
| Ade ẹgun | Mithrodia fisheri |
| Sugar irawọ | Nardoa galatheae |
| Pink irawọ | Ophidiasteridae |
| Forcipulatide | Oreasteridae |
| Fromia monilis | Orthasterias koehleri |
| Goniasteridae | Pentaceraster |
| Henricia leviuscula | Pentagonaster |
| Henricia itajesile | Spinuloside |
| Leiaster leachi | Valvatida |
Ofiuras
| Amphiodia occidentalis | Ophioderma panamensis |
| Amphipholis | Ophionereis annulata |
| Amphipholis squamata | Ophiopholis aculeata |
| Amphiura arcystata | Ophiopholis kennerlyi |
| Ophiocoma erinaceus | Ophioplocus esmarki |
| Ophiocomina nigra | Ophiothrix spiculata |
| Ophioderma | Ophiotrix fragilis |
| Ophioderma longicauda | Ophiurida |
Urkun urchins
| Chondrocidaris gigantea | Ọkàn hedgehogs |
| Colobocentrotus atratus | Awọn urchins Pebble tabi awọn urchins ẹlẹsẹ |
| Paucispinum headband | Awọn ẹja okun ti o wọpọ |
| Diadematoid | Ikọwe sample hedgehogs |
| Awọn dọla iyanrin tabi awọn hedgehogs aiṣedeede | Lytechinus semituberculatus |
| Echinometridae | Ọdunkun okun |
| Echinothrix headband | Pseudoboletia indiana |
| Parson ká ijanilaya okun urchin | Toxopneustidae |
Awọn kukumba okun. Wọn pin si awọn idile oriṣiriṣi ati awọn kilasi:
- Dendrochirotacea
- Aspidochirotacea
- Apodacea
Diẹ ninu awọn eya ni:
| Actinopyga | Chocolate searún okun kukumba |
| Bohadschia Paradoxa | Kukumba okun dudu |
| Holothuria cinerascens | Psolidae |
| Holothuria pervicax | Sclerodactylidae |
| Leptosynapta tenuis | Stichopus |
| Parastichopus californicus | Synapta maculata |
| Warty okun kukumba | Thelenota ananas |
