Appearance and Anatomy
Chaca catfish have an elongated, broad, and flattened head. The mouth is terminal and very wide. There are three or four pairs of barbels, though if the nasal barbels are present they are minute. These fish grow to a length of about 20 centimetres (7.9 in).
The dorsal fin is short and possesses strong, serrated, fin spines, which are strong enough to inflict wounds.
Read more about this topic: Chaca (genus)
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