What is the typical range of rays found in the anal fin of the White Catfish?
Answer
18 to 24 rays
A crucial morphological feature utilized by ichthyologists to identify the White Catfish is the structure of its anal fin. This fin is characterized by being relatively short and containing a specific count of rays. The established range for these rays is narrow, falling between 18 and 24 rays. This specific count helps researchers distinguish the White Catfish from other species residing within the Ameiurus genus, providing a reliable physical metric independent of coloration or habitat preferences.
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