limbless

adj.

无肢的，无翼的，无大枝的；

LOCOMOTION OF LIMBLESS VERTEBRATES :
Limbless Locomotion: Learning to Crawl with a Snake Robot
Limbless Locomotion : Learning to Crawl with a Snake Robot
The energetic cost of limbless locomotion.
Tetrapod Limblessness: Evolution and Functional Corollaries
Developmental basis of limblessness and axial patterning in snakes.
Limblessness and Correlated Changes in the Girdles of a Comparative Morphological Series of Lizards
Repeated evolution of limblessness and digging heads in worm lizards revealed by DNA from old bones.
"Without a leg to stand on": on the evolution and development of axial elongation and limblessness in tetrapods
The phylogenetic relationships of Pachyrhachis problematicus , and the evolution of limblessness in snakes (Lepidosauria, Squamata)