Hopliancistrus
Hopliancistrus tricornis is the only species of the genus Hopliancistrus of suckermouth armored catfish.[2] This species reaches a length of 10.4 centimetres (4.1 in) SL. It is endemic to Brazil and can be found in the Tapajós and Xingu River basins.[3] This species appears similar to members Lasiancistrus, however it lacks the synapomorphies and has five rows of plates on the caudal peduncle instead of three like those found in Lasiancistrus.[4] It is characterized by three stout, strongly curved odontodes on either side of the head in males.[4] References
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