Ho ikatisa ea likhahla leoatle. Sehlopha sa leoatle khahla (photo photo photo photo)

Tsejoa esale pele ea lefatše ea lintho tse phelang metsing, le tletse taba e makatsang. Ba bang ba bona, hammoho le likorale le dimelametsing bopa e ikhethang lirapa tlas'a metsi. Crinoids - le liphoofolo tse benthic, ha dimela, e le ho bonahala ka chebo ea mahlo. Ba ho matleng a echinoderms ena.

Leo ho ahiloeng ho ke likhahla leoatle

sehlopha sa bona ke haholo e leng sebaka se pharaletseng a oa ho aba. Ka maoatleng a lefatše a ke hoo e ka bang ha ho na libaka tsa moo ho ne ba sa khahlanyetsa crinoids. Ho na le tse ka bang 700 mefuta e meng ea masiba-linaleli. Russia metsi leoatleng leo ho ahiloeng ho ke 5 feela ba mefuta e tsa bona.

Crinoids lule ho maoatle tsohle. Botebo bakeng sa bona sa reng letho. Kaofela ha bona ba ka tsela e tsoanang hantle. Leha ho le joalo tse ngata tsa liphoofolo tsena khetha ho lula le mofuthu metsi a leoatle ka moferong oa mepopotlo ea likorale, ba sebakeng ka bolibeng tebang (limithara tse 200).

Types of likhahla leoatle

Crinoids sehlopha sa e emeloang ke mefuta e 'meli ea masiba-linaleli - stalked le besstebelchatymi. batho bohle, ho sa tsotellehe mofuta oa bona, ba khomaretse mefuta eohle lintho tse tlas'a metsi. Stalked crinoids, metseng ka lehlaka ho letho, kamehla a lule a le boemong bona. Zone tshilong ya dijo ka bona lekanyetsang bolelele ya bakoang ka eo ba neng ba e busa.

Besstebelchatye khahla, tingoa tšehetso, re fumana tokoloho e khōloanyane ea ho nka khato. Ba ile ba tloha substrate ka, ke khona ho hlōla sebaka se fokolang. Phaphametseng liphoofolo tse loketseng mahlaseli, ho sebetsa joaloka pop lady ka. Leha ho le joalo, e mong le e lehlaka bosula le bo pene naleli mosebetsing oa ho ntshetsopeleng ke ke ua tšela khomaretse lehlaka mohato. Tsobotsi ena le ho ikatisa ya mefuta bobeli likhahla leoatle tlisa bona hammoho.

tlhaloso tsa likokoana-hloko

Ka lebitso la sehlopha sa ena ea liphoofolo Segerike metso. Crinoids (Crinoidea) fetolela e le "joaloka likhahla." 'Me ka sebele, ka ho motho ka mong ho bao e leng sehlopha sa ena,' mele oa fantastis, joaloka lipalesa tlokomang. Ho tšoana lipalesa eketsa mebala-bala colouring 'mele masiba linaleli. Re heli! Ba leoatle sebōpuoa ntle, 'me ke batla ho etsa setšoantšo sa hae. Crinoids - e thabisang mokhabiso ka tlas'a metsi lirapa, eo ba ile ba sebetsa ka ho bōptjoa ha moqapi khanyang - tlhaho ka boeona.

Crinoids na kopi e bōpehileng joaloka 'mele le cavity molomo bohareng. Up tloha kopi e botsitsoeng mahlaseli se makala (matsoho) le whisk. Re stalked crinoids khomaretse ho ea botlaaseng ba senoelo lehlaka e ntse e hōla ho e-ba bolelele ba mithara e mong. Petiolus microcyteme le appendages lateral (cirri) khomaretse mobu. Besstebelchatye likhahla ke feela e etsoang ka mechine cirri, ea lipheletsong tsa tse faneng ka serrated kapa "manala a eona". Thanks ho bona besstebelchatye batho ba khomarele fatše.

Masiba-linaleli e ne e le echinoderms feela, ba ile ba khona ho boloka tšobotsi dikamano bona baholo-holo ba 'mele. Dorsal lehlakoreng ba tšoarella fatše, 'me hore holim'a metsi hore ho fanoa ka cavity molomo reteleha ho ya hodimo. Motheong oa sebōpeho sa 'mele ea bona ba beha-tsela tse hlano radial setshwani. 'Mele oa thehoa ke mahlaseli hlano khona ho ata arotsoe ka likarolo tse' me mofuta o ka 10-200 "matsoho bohata." libalaka a fana le makala a mangata lateral (pinnulami).

Thanks ho corolla tletseng akhotsoang thehoa e mosa ea marangrang hore catches plankton le detritus. Mahlaseli a rera lehlakoreng le ka hare di fuwa ka grooves muco-ciliary, tse fokotswa ho cavity molomo. Hang ka lijo ho ba susumelletsa hore ba molomong oa hae. Calyx ka bohale ho tswa lehlakoreng la ea bophahamo conical e hlomelloa le se qalang Anal.

Eaba ba etsa calcareous masapo Link tlatsetsa likarolo. Ho na le likarolo tse peli: endoskeleton mahlaseli le lehlaka. liphoofolo tsena benthic na tentacle, methapo le ho hlahisa bana (etsa hore ho ikatisa tsa leoatle likhahla) tsamaiso. The cavity-mahlaseli a phunyeletse ka bakoang le lekala ea tsamaiso ea tsohle khethiloe.

Crinoids tloha counterparts bona ha ba feela sekametseng bath ya dorsal-mpeng setsi mola hore matha ka litopo tsa liphoofolo tsohle, empa hape diphetolo kantle. Tentacle dikarolo ea tsamaiso ka pene-star tsela e bonolo. Ka mohlala, ho ba ne ba sa kena ka ampoule, bakeng sa ho laola le maoto. E ha le a fumanwa ka liphoofolo le madreporite.

ho ikatisa

Re sebetsana le batho ka ho ikatisa ea likhahla leoatle. echinoderms tsena ke liphoofolo tse dioecious. lihlahisoa thobalano oela tseo pinnuly hore ba sebakeng haufi le senoelo. E motona hangata pele jetted peō ea botona e tsoang pinnul sebelisa mekoti e khethehileng.

boitšoaro ba hae ho lebisa tlhotlheletso ya e motšehali, ho se be le ducts efe kapa efe genital. Mo pinnuly feela qhoma, 'me a oa ka ntle ho tsona mahe. lehe peō e entseng le letona le ka metsing, 'me ka mor'a moo ba fetoha larvae doliolyariyu moqomo. Kahoo ho na le ho ikatisa ea likhahla leoatle.

ntshetsopeleng doliolyary

Ka mor'a matsatsi a 2-3 doliolyariya lula fatše. itšeha lona keletso ea matlafala ka substrate ea, lintho leha e le efe e tiileng le esita le bona batho ba mofuta ofe le mong.

Kaha lahlehileng cilia bona, ho e ba e tsitsitseng.

Mohato pentakrinusa bontšoa ka hore senoelo butle-butle o ile a bontša sebopeho hlano nchocho. Lehlaka e ntse e hōla, eketsa, ntshetsa pele libalaka khomaretse tiske eketseha. Doliolyariya qala ho tšoana le e nyenyane masiba-star, bobbing ka bakoang le. boholo ba eona e fapana ka karohano ya cm, 0.4-1. Cold arctic metsi susumelletsa ho larvae hore e hōle ho cm, 5 ka bolelele. Ha nako e ntse doliolyariya atoloswa, le farologantswng la ka lehlaka le senoelo, e leng o ile thehoa molomo. Mothating ona oa ntshetsopele ya larvae tsistoideynaya fella.

Ho se tšoane ka ntshetsopele ya lihlopha

Haeba ho ikatisa ea likhahla leoatle le ntshetsopele ya larvae ea e tsoanang hantle, ka mor'a ho phethoa sethaleng pentakrinusa ka lihlopha bobeli crinoids ka ho eketsehileng le nonofo ya mmele phallang tsela e fapaneng. Stalked batho ka bomong, tlameletsoe sebakeng se le seng, fumana likarolo tse ncha tsa bakoang ena. ho bona ho lelefatsa bakoang e tšoana le spongebob ea lichelete tsa tšepe (bakeng sa vertebrae motho strung ka 'ngoe tse ling).

Vertebrae na le mabapi nkehang eo e fana ka mesifa. bohareng bakoang o ne o salla le kanaleng, moo methapo leshano le pata makala tse ling. Cirri lokisetsa ka litsela tse peli: ka ho pota lehlaka, kapa ka botlaaseng lona.

Motho fumanang tšoana hlollang le lipalesa eo, ha e le hantle, o bontša ho lifoto tse ngata maneha. Crinoids morao-rao bakoa na bolelele fapaneng, e hangata feela 75-90 cm,. And mesaletsa bakoa bolelele fihla 21 m. Masiba naleli khale ne ba sebele linatla.

Besstebelchatye khahla develops ka tsela e fapaneng. Ka mor'a khoeli le halofo kopi nosi robehile ho tloha bakoang, a a phaphametse ka bolokolohi. The lehlaka a hlokahala o ile a qetella.