bharatakosh ke snsthapak/snpadak ke fesabuk laiv ke lie yahan klik karen.

ऋजुपक्ष  हिन्दी देवनागरी में पढ़ें।

rijupaksh kitavarg apekshakrit ek kam vikasit koti hai jisake antargat tiddiyon, tiddon, jhinguron, jhilliyon, rivon adi ki ganana ki jati hai. pahale is koti men telachatte, parnakit, maintis adi bhi rakhe ge the, kintu ab ve doosari koti ke antargat kar die ge hain. to bhi rijupaksh koti men 10,000 se adhik kitapatngon ka varnan kiya jata hai.

ye kit samany se bahudha kaphi badi nap ke hote hain tatha inaki bhinn-bhinn jatiyon men kuchh pnkhadar, kuchh pnkhahin aur kuchh chhote pnkhavali jatiyan hoti hain. ye sabhi jntu sthal par rahanevale hote hain. kee jatiyon men dhvani utpann karane ke ang hote hain aur kuchh to badi tej dhvani karate hain. agale pnkh pichhale pnkhon ki apeksha mote hote hain. shishuon ke pnkhon ki gaddiyan vikasakal men ulat jati hain. mada men samanyat: andaropak ang hote hain. nar ke jananang naven adharapatt ke niche chhipe rahate hain. roopantaran sadharanat: thoda hi ya apoorn hota hai.

rijupaksh ke vargikaran ke snbndh men visheshgyon ke maton men kuchh vibhinnata hai, kintu lagabhag sabhi vartaman vidvanh‌ isake antargat 12 vnsh rakhate hain-shijodaiktailidi, grillaikridaidi, faijmodaidi, tetigonidi, stino-pelmaitidi, profailaingopsidi, grillotailpidi, grillidi, tetrigidi, praskopaidi, nyumoridi, yoomaistaisidi, ekridaidi, silindraiketidi tatha traidaiktailidi.

stinopelmaitidi tatha grillaikridaidi bahut pichhade hue vnsh hain. shijodaiktailidi vnsh men keval tin jatiyan hi rakhi jati hain jo snsar ke poorvi golardh men jahan tahan phaili huee hain. inaki ek jati shijodaiktailas ho pnkhadar hai. vishramavastha men isake lnbe pnkhon ke sire kamani ki bhanti lipate hote hain. yah mitti men bil bana sakata hai aur din men usi men rahata hai. profailaigopsidi men keval tin jatiyan rakhi jati hain jinamen se ek profailaingapsis absakoora bharat men paee jati hai. tetigonidi vnsh men lnbi singonvale patale tidde rakhe jate hain. inake pnkh hare rng ke hote hain aur ye sadharanat: jhadiyon, ghas phoos adi men chhipe rahate hain. is kriya men inake hare rng se vishesh sahayata milati hai. inaki madaon ke andaropak bhi bahut lnbe hote hain. kabhi-kabhi to inaki lnbaee sharir ki lnbaee se bhi adhik hoti hai. grillidi vnsh ke antargat jhilli tatha jhingur rakhe jate hain. ye apane pnkhon ke kinaron ko ragadakar tivr dhvani utpann karate hain. ragad ke samay pnkh lagabhag 45 ke kon par uth jate hain aur phir baen pnkh ka sira dahine pnkh ke reti jaise ko ragadata hai. kaha jata hai, ghareloo jhingur dvara utpann dhvani ek mil tak sunaee padati hai. grillotaiplidi ke antargat revan ya jngali jhingur ate hain. is poori koti ka sabase bada vnsh hai aikridaidi; isake antargat lagabhag 5,000 jatiyan hain jo adhikanshat: ushn pradeshon men hi paee jati hain. is vnsh men chhoti singavale tidde tatha vinashakari tiddiyan hain. inamen kee prakar ke dhvanyutpadak ang pae jate hain. kuchh udate samay bhi dhvani utpann kar sakate hain. inake andaropak bahut vikasit nahin hote kintu unaki sahayata se bahudha ye kit kheton, medon adi men ek chhed karate hain aur phir udar ka antim bhag us bil men dalakar 30 se 100 tak ki snkhya men ande dete hain. sath hi ek chipachipa padarth bhi nikalate hain jisase ande chipak jate hain aur ek prakar ka andapunj ban jata hai. sookhane par isake dvara andon par pani ka prabhav nahin padata. andon se 'shishu' nikalate hain jo chhote aur pnkhahin hote hain kintu any lakshanon men bahut kuchh praudh ke hi saman hote hain. kee bar tvakh‌patan ke sath ve badhate jate hain aur ant men pnkhadar praudh ho jate hain. is vnsh ki adhikashn jatiyan badi vinashakari hoti hain, kintu tiddi inamen se sabase adhik vinash karati hai. ekridaidi ko lagabhag 10 upavnshon men vibhajit kiya jata hai.[1]

shh

laghu shrringonvala tidda (stenobthraauas baikalar)

shh

shh

revanaan

yah kit barasat ke dinon men ati tivr dhvani utpann karata hai.

shakar ko pakadane ke lie agrim tangon ko

modakar akraman ke lie, ya sadharanat: isi

prakar taiyar rahata hai. shesh tangen is prakar

rakhi huee hain ki sharir ko ve snbhale rahen.

shesh tin vnsh paryapt chhote hain. tetrigidi vnsh ki lagabhag 700 jatiyon ki visheshata unake vakshagr ke pronotam bhag ka bahut bada aur pichhe ki or badha hona hai. ye bahudha thnde pradeshon men paee jati hain. traeedaiktailidi ki lagabhag 50 jatiyan meditareniyan pradesh men paee jati hai. ye jhinguron ke saman kintu chhoti hoti hain aur inaki tangon ke phimora khnd bahut lnbe hote hain tatha shrring chhote. silindraiketidi vnsh ki thodi si jatiyan astreliya, nyoo gaina aur patagoniya men milati hain. ye pnkhahin hoti hain tatha mitti men bil banati hain. at: inake shrring, ankhen adi bhi chhoti hoti hain aur sharir kuchh kuchh belanakar hota hai. baddhahast (maintis)[2]


panne ki pragati avastha
adhar
prarambhik
madhyamik
poornata
shodh

tika tippani aur sndarbh

  1. hindi vishvakosh, khand 2 |prakashak: nagari pracharini sabha, varanasi |snkalan: bharat diskavari pustakalay |prishth snkhya: 193 |
  2. sn.grn.-el.chopar: biologi dezorthoptepir.

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