Rineloricaria aequalicuspis

Rineloricaria aequalicuspis^[3] is a species of freshwater ray-finned fish belonging to the family Loricariidae, the mailed catfishes, and the subfamily Loricariinae, suckermouth armored catfishes.^[2] This catfish is endemic to Brazil where it is found in the states of Rio Grande do Sul and Santa Catarina.^[1] It is typically found in creeks and rivers of a variety of widths, where it occurs at various depths over substrates composed of rocks and stones. The species reaches a standard length of 16.1 cm (6.3 in) and is believed to be a facultative air-breather.^[4] The specific name, aequalicuspis, is a combination of the Latin words aequalis, which means "equal", and cuspis, meaning a "point" or "pointed end", an allusion to the shape of the teeth which have two cusps of almost equal size.^[5]