| Planiloricaria | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Loricariidae |
| Subfamily: | Loricariinae |
| Genus: | Planiloricaria Isbrücker, 1971 [2] |
| Species: | P. cryptodon |
| Binomial name | |
| Planiloricaria cryptodon | |
| Synonyms [3] | |
Pseudohemiodon cryptodonIsbrücker, 1971 | |
Planiloricaria is a monospecific genus of freshwater ray-finned fish belonging to the family Loricariidae, the mailed catfishes, and the subfamily Loricariinae, the armored suckermouth catfishes. [2] The only species in the genus is Planiloricaria cryptodon. [4] [3]
This species is native to Bolivia, Brazil and Peru where it occurs in the upper Amazon basin, including the Ucayali, Purus, and Mamoré River drainages. [4] P. cryptodon inhabits sandy substrates in the main streams of large rivers. [4]
Planiloricaria cryptodon reaches a length of 21.5 centimetres (8.5 in) SL. [5] Although reproductive habits are unknown, this species is probably a lip brooder. [4] Sexual dimorphism is characterized by the shape of the genital area; the genital area in males is elongate and narrow compared with the large and roundish area of females. [4] This species shows derived features such as a reduction in size and number of teeth, premaxillary teeth absent, a circular head shape, and eyes reduced in size without iris operculum. [4]
