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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“What lies behind appearance is usually another appearance.”
—Mason Cooley (b. 1927)
“But a man must keep an eye on his servants, if he would not have them rule him. Man is a shrewd inventor, and is ever taking the hint of a new machine from his own structure, adapting some secret of his own anatomy in iron, wood, and leather, to some required function in the work of the world. But it is found that the machine unmans the user. What he gains in making cloth, he loses in general power.”
—Ralph Waldo Emerson (1803–1882)