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・ Pentax Q-S1
・ Pentax Q10
・ Pentax Q7
・ Pentax SF7
・ Pentax SFX
・ Pentax Spotmatic
・ Pentax Super-A
・ Pentax X-5
・ Pentax X90
・ Pentax XG-1
・ Pentax ZX-50
・ Pentazenium
・ Pentazocine
・ Pentazole
・ Pentazona barb
Pentazonia
・ Pente
・ Pente Pigadia
・ Pente Vryses
・ Pentecontad calendar
・ Pentecontaetia
・ Penteconter
・ Pentecopterus
・ Pentecost
・ Pentecost (disambiguation)
・ Pentecost (film)
・ Pentecost (play)
・ Pentecost Cirque
・ Pentecost Dodderidge
・ Pentecost III


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Pentazonia : ウィキペディア英語版
Pentazonia

Pentazonia is a taxonomic infraclass of millipedes containing the pill-millipedes (Oniscomorpha) which can roll into a ball and the order Glomeridesmida which cannot. Defining traits (apomorphies) include divided sternites, a labrum with single median tooth, and an enlarged pygidium on the hind-most body segment. Pentazonia is in the dominant millipede subclass Chilognatha which have a calcified exoskeleton and modified sperm-transferring legs in males. In contrast to the Helminthomorpha – the other Chilognathan infraclass, the sperm-transferring legs are located on posterior body segments and known as ''telopods''. Pentazonians are relatively short-bodied, with between 13 and 21 body segments. The Pentazonia contains one extinct order, Amynilyspedida, often referred to the Oniscomorpha.
==References==



抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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