anamniote

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anamniote

[an′am·nē‚ōt]
(zoology)
An animal that does not develop an amnion during its embryonic stage.
References in periodicals archive ?
A possible reason for this could be that when the cat shark hatches they are more developed as they have a longer developmental period compared with anamniotes such as zebrafish or Xenopus and do not have a larval stage.
In the most rostral part of the brain, the POC formed from nTPOC neurones and these axons cross the midline in anamniotes [1].
In anamniotes, the DTmesV forms much later in development [22, 23], while interestingly in S.