What specific detail about the White Bass operculum aids in distinguishing it from some related species?
Answer
The posterior edge of the operculum (gill cover) is smooth, lacking the serrations or strong teeth found on some other related species.
When examining the head features for confirmation, the structure of the gill cover, or operculum, provides a reliable marker. The true White Bass specimen is characterized by having a posterior edge on this structure that is notably smooth. This contrasts with other related species that might possess strong serrations or visible teeth along that edge. While the tongue might contain small, weak teeth, the external confirmation provided by the smooth operculum edge is a consistent feature for the *Morone chrysops*.
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