| Planiloricaria cryptodon | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Loricariidae |
| Subfamily: | Loricariinae |
| Tribe: | Loricariini |
| Genus: | Planiloricaria Isbrücker, 1971 |
| Species: | P. cryptodon |
| Binomial name | |
| Planiloricaria cryptodon (Isbrücker, 1971) |
|
| Synonyms | |
|
Pseudohemiodon cryptodon |
|
Planiloricaria cryptodon is the only species of the monotypic genus Planiloricaria, a genus of the family Loricariidae of catfish (order Siluriformes).[1]
This species is distributed in the upper Amazon basin, including the Ucayali, Purus, and Mamoré River drainages.[1] P. cryptodon inhabits sandy substrates in the main streams of large rivers.[1]
P. cryptodon reaches a length of about 22 centimetres (8.5 in) SL.[2] Although reproductive habits are unknown, this species is probably a lip brooder.[1] 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.[1] 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.[1]