Page 4 - Zoology

3) ‡`‡ni wfZ‡i wm‡jvg †_‡K m„ó Abb¨ Mo‡bi cvwb msenZš¿ i‡q‡Q|
ce©Ñ10 t 1) å~Yve¯’vq A_ev AvRxeb c„ô ga¨‡iLv eivei `ÛvKvi I w¯’wZ¯’vcK wb‡iU Homo sapiens

Chordata b‡UvKW© _v‡K| DbœZ cÖvwY‡`i c~Y©v½ Ae¯’vq GwU †gi“`Û w`‡q cÖwZ¯’vwcZ|
2) b‡UvK‡W©i wVK Dc‡i j¤^ A¶ eivei duvcv, bjvKvi mœvqyi¾y ev bvf©KW© _v‡K|
†gi“`Ûx cÖvYx‡`i †¶‡Î bvf©KW©wU cwiewZ©Z n‡q m¤§yLcÖv‡š— gw¯—®‹ I cðv‡Z
myly¤§vKvÛ MVb K‡i|
3) Rxe‡bi †h †Kv‡bv `kvq ev AvRxeb Mjwe‡ji `ycv‡k K‡qK †Rvov dzjKviÜ«
_v‡K| DbœZ K‡W©‡U dzjKvi‡Ü«i we‡jvc N‡U|

Chordata c‡e©i †kªwYweb¨vm t Hickman et al. (2008) KW©vUv c‡e©i cÖvYx‡K wZbwU Dcc‡e© fvM K‡ib| wb‡P
†kªwYweb¨vmwU eY©bv Kiv n‡jv-
 Dcce©-1 t Eurochordata

‡kªYx-1 t Ascidiacea
‡kªYx-2 t Thaliacea
‡kªYx-3 t Larvacea

 Dcce©-2 t Cephalochordata
 Dcce©-3 t Vertebrata
Awa‡kªwY-1 t Agnatha

‡kªwY-1 t Myxini
‡kªYx-2 t Cephalaspidomorphi
Awa‡kªYx-1 t Gnathostomata
‡kªYx-1 t Chondrichthyes

†kªYxÑ2 t Actinopterygii
†kªYxÑ3 t Sarcopterygii
†kªYxÑ4 t Amphibia

†kªYxÑ5 t Reptilia
†kªYxÑ6 t Aves
†kªYxÑ7 Mammalia
Dcce©-1 t Eurochordata Gi ˆewkó¨ t †Kej jvf©v `kvq Ges jvf©vi †jR A‡j b‡UvKW© Dcw¯’Z _v‡K| i“cvš—‡ii
mgq ax‡i ax‡i b‡UvK‡W©i we‡jvc N‡U, ZvB cwiYZ cÖvYx‡Z b‡UvKW© _v‡K bv| wKQy cÖRvwZ mvBdb w`‡q m‡Rv‡i cvwb
DrmvwiZ K‡i e‡j G‡`i mvMi †dvqviv bv‡g WvKv nq|

‡kªYx-1 t Ascidiacea t G †kªwYfy³ cÖvYxi †`n ùxZKvq ev bjvKvi| †`‡ni AveiY ¯’vqx, cyi“ I Aa©¯^”Q¡| cwiYZ
cÖvYx‡Z †jR _v‡K bv| D`vniY- Ascidia mentula.
‡kªYx-2 t Thaliacea t G †kªwYi m`m¨iv †`L‡Z †jey ev wc‡c AvK…wZi| cwiYZ cÖvYx †jRwenxb| D`vniY- Salpa.

‡kªYx-3 t Larvacea t G †kªwYi m`m¨iv evuKv e¨vOvwP AvK…wZi| cwiYZ cÖvYx‡Z †jR _v‡K| D`vniY-
Appendicularia.
Dcce©-2 t Cephalochordata t Giv †`L‡Z A‡bKUv ej­‡gi AvMvi g‡Zv| ZvB G‡`i WvK bvg fj­vKvi cÖvYx| †`‡ni
m¤§yL cÖv‡š— Iivj ûW Ges Zv‡Z Iivj wmwi (Oral cirri) _v‡K| ‡`‡ni `y cv‡k Ô >Õ AvKv‡i gv‡qvUg ev †cwk cici mw¾Z|

D`vniY- Branchiostoma lanceolatum.
sanjoy chandra mondal, lecturer, botany, joypurhat govt. college, joypurhat. 4