- Peckoltia bachi
Peckoltia bachi Scientific classification Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Order: Siluriformes Family: Loricariidae Subfamily: Hypostominae Tribe: Ancistrini Genus: Peckoltia Species: P. bachi Binomial name Peckoltia bachi
Distribution and habitat
P. bachi is found at the edge of medium to large rivers among submerged twigs and grasses, usually in flow. They may use their pelvic fins to hold onto these twigs and grasses, similar to species of Hypoptopoma.
Appearance and anatomy
P. bachi can be distinguished from all other species of Peckoltia because of a number of traits. It is the only Peckoltia that is able to fold its pelvic fins so that the pelvic fin spines can run parallel to the underside of its body. It also has wider pelvic fin spines than other species. Also, its eyes are low on its head. These traits make this fish appear similar to Hypoptopoma. Their opercle also generally have a patch of odontodes at all ages; in other species of Peckoltia, there generally are not many odontodes on the opercle, and they disappear with size. P. bachi has a tan base color and spotting or spots on the body and fins. P. bachi and P. caenosa are the only species that are mottled instead of having dorsal saddles or spots. P. bachi can be distinguished from P. caenosa by having diffuse, large spots on the head and no markings on the abdomen; P. caenosa has vermiculations on the head and body.
Males may have hypertrophied odontodes on the sides of the body and the posterior portion of the head.
There is some variation in coloration between populations.
- ^ a b c d e f g h i j Armbruster, Jonathan W. (2008). "The genus Peckoltia with the description of two new species and a reanalysis of the phylogeny of the genera of the Hypostominae (Siluriformes: Loricariidae)". Zootaxa 1822.
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