Cladus: Eukaryota 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] References 1. ^ a b c d e f Covain, Raphael; Fisch-Muller, Sonia (2007). "The genera of the Neotropical armored catfish subfamily Loricariinae (Siluriformes: Loricariidae): a practical key and synopsis". Zootaxa 1462: 1–40. http://www.mapress.com/zootaxa/2007f/zt01462p040.pdf.
Source: Wikipedia, Wikispecies: All text is available under the terms of the GNU Free Documentation License |
|
