Tag: respiratory pore
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The Rarest Mollusk: an Abalone with No Holes!
Since abalone are defined by their row of respiratory pores on the shell it is of course quite interesting that some individuals have been found that do not have them! These abalone, called imperforates, are extremely rare and only three are known for certain, all black abalone (Halotis cracheodii). A recent scientific paper published by Buzz…