Internal Anatomy
Odontophoral cartilages separate; valve of Leiblein present, with or without bypass tube; esophaegeal caecum absent; gland of Leiblein short, small, emptying directly into posterior end of esophagus; paired salivary glands ascinous or tubular, attached to esophagus just anterior to the valve of Leiblein, ducts attached to walls of esophagus; single accessory salivary gland present, ascinous or tubular, anal gland absent.
Read more about this topic: Persiculinae
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