annulate

Thus vertebrate and annulate embryos agree in certain points at the time of the formation of the primitive streak.

From Form and Function A Contribution to the History of Animal Morphology by E. S. (Edward Stuart) Russell

In eggs with yolk, whether vertebrate or annulate, there is always a separation into an animal and a plastic layer.

From Form and Function A Contribution to the History of Animal Morphology by E. S. (Edward Stuart) Russell

This species is recognizable at once by its regular, uniform, depressed, annulate or pitted sporangia, scattered evenly over the habitat of rotten leaves or wood.

From The North American Slime-Moulds A Descriptive List of All Species of Myxomycetes Hitherto Reported from the Continent of North America, with Notes on Some Extra-Limital Species by Thomas H. (Thomas Huston) MacBride

It is highly contractile and when contracted sometimes assumes an annulate appearance; but as a rule the external surface is smooth.

From Freshwater Sponges, Hydroids & Polyzoa by Nelson Annandale

This is a beautiful species, easily known by its discoidal or almost annulate sporangia mounted upon short dark black stipes.

From The North American Slime-Moulds A Descriptive List of All Species of Myxomycetes Hitherto Reported from the Continent of North America, with Notes on Some Extra-Limital Species by Thomas H. (Thomas Huston) MacBride