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others:
- In Haeckel's category, a division of Dipneusta, or Dipnoi, containing those dipnoans which are double-lunged, namely, Protopterus and Lepidosiren: distinguished from Monopneumones.
- In entomology, a division of Araneida or real spiders, having but two lung area, six spinnerets, and scattered ocelli: distinguished from Tetrapneumones. Many spiders fit in with this division. Also Dipneumoneœ.
How would you define dipneumones?