keelless

adj.

无龙骨的；

Keelless concave hull
Keelless - but nevertheless a Pleuroceras?
Keats's Romantic Seas: "Ruthless"or "Keelless"?
A KEELLESS COCKEREL: A Skeletal Defect in the Domestic Fowl
Early clinical and radiographical results of keel-less and shallow keel cervical disc replacement
Fossil argonauts (Mollusca : Cephalopoda : Octopodida) from Late Miocene siltstones of the Los Angeles Basin, California
The Time Ship: A Chrononautical Journey
On a new genus of lizards from Ceylon
On the pulmograde Medusæ of the British seas
On the pulmograde Medus\ue6 of the British seas