nudibranch

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nudibranch

a member of the order Nudibranchia, gasteropod molluscs which lack a shell.
References in periodicals archive ?
Advantages of naming species under the PhyloCode: an example of how a new species of Discodorididae (Mollusca, Gastropoda, Euthyneura, Nudibranchia, Doridina) may be named.
And if Cosmic Cow, with its daunting reach outward/inward, suggests a vast scale that Eisenstein relishes, Nudibranchia, a sort of string quartet to Cosmic Cow's symphony, reminds us that the cosmos can come down to a gathering of defeated professors at dead-end jobs at a southern California junior college.