Ibeldisen

Ibeldisen ( isem ussnan : Gastropoda ) d asmil meqqren yakk deg wadur n tigriyin acku asmil-a yegber seg wazal n 80% n telmas yeṭṭafaren adur n tigriyin, akken daɣen iy iga d asmil ameqran wis sin yakk deg tgelda taɣersawt , anda i llant degs wazal n 65000 n telmas gar-asent aɣlal d umillus d tezɣurt .

Azal ameqran n ibeldisen lan (sɛan) ajeɣlal amyiwen ddurayen yis. ijeɣlalen-a ttilin d ubrinen Ibeldisen ttidiren deg waṭas n twennaṭin n umadal. Amur ameqran degsen ttidiren deg waman, anda ugar n 3000 n telmas n ibeldisen ttidiren s ddaw n waman n illan d igarawen yakk d 5000 n telmas niḍen ttidiren deg waman iẓidanen ( isafen , iɣezṛawen , igelmimen ), ma d tilmas yegran ttidirent sufel n tegnit (lqaɛa). Azal ameqran n ibeldisen tetten imɣan akken i llant telmas tettent isugar igemnawen, maca llant daɣen kra n telmas d timseksumin yerna gant d timuɣas .

Aglam

tasnasileɣt :

Ibeldisen s umata d iɣersiwen irazamalen ( asymétriques ) anda tafekka-ynes tebṭa ar 3 n ismilen ufrizen:

tigritin-a gant d tiynuzufin neɣ iberwetmen , Timseddert neɣ tamarrawt .

Amyaraw Tuget neɣ azal ameqran n ibeldisen gan d iberwetmen , isin n talwiyin ttmiqqanen tisiqsin-nsen w ttembadalen igamiten n iwetmen s akin ad asen igamiten n twetmin i wakken ad myarrwen .

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Agar, tasensartut d usru

Amezruy amhazan

Ibeldisen gan d tagrawt taɣersawt tameqrant yakk seld n iburɣas anda llant 40000 n telmas d timiddurin, banen-d ɣer tudert send n 600 ms , akken igan d tigritin timyiwnin iy sselken tagnit imedlen, Amezruy amhazan n ibeldisen yettwassnen s temhazt n talɣa n ijeɣlalen-nsen .

Tasensartur

Irem n Gasteropoda (igan d assaɣ ussnan n ibeldisen) yekka-d seg sin n wawalen igriken γαστήρ (gastêr), « Adis », d πούς (poús), « Aṭar ».

Agar

Asismel amensay

Deg usismel amzikan (aqbur), amedya deg wagla n Johannes Thiele (1929-1935), llan 3 n idu-smilen ibuda:

Asismel atrar

S unect (ɛla ḥsab) n useklas agreɣlan n telmas tiwlalin (deg 24 ctember 2104)

Ẓeṛ daɣen