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NarrativeWikipediaarticle
Traits & measurements1 literature sources4 traits
Occurrence & distributionGBIF10 records
01Narrative
Acanthopoma annectens is a species of catfish (order Siluriformes) of the family Trichomycteridae, and the only species of the genus Acanthopoma. This fish grows to about 12 centimetres (4.7 in) SL and originates from the upper and middle Amazon River. This species is parasitic, attacking like a leech and leaving wounds all over the fish which it attacks; it spreads a bundle of opercular and inter-opercular spines into the wound and remains there and is difficult to remove. It may invade parts of wading or swimming animals but apparently exist in these passages only for a short while, as they quickly die from a lack of oxygen.
No narrative description available for this taxon yet.
How far back this lineage goes — and how we know. Everything here is measured in Ma, short for “mega-annum”: millions of years ago. The chart reads left to right like a calendar of the Earth, from the deep past on the left to today at the right edgetop to bottom like a core drilled through the Earth, from the deep past at the top down to today at the bottom.
At a glance
DNA clock origin14 Ma TimeTree
When this lineage existed
How to read this: the coloured strip along the bottomdown the left is the geological calendar — the standard epochs (Pliocene, Pleistocene…) every museum uses, shown so you can see which chapter of Earth's history this lineage lived in. This lineage is a young one, so the strip is zoomed in to epochs — the finer subdivisions inside a period. The orange marker is the DNA clock: DNA accumulates mutations at a roughly steady rate, so comparing this species' DNA with its relatives estimates when the lineage split off — independently of any fossil.
DNA clock origin
08Occurrence & distribution
Record type10 records
Museum / vouchered10
Range
Area of Occupancy AOO40 km²
Museum / Voucheredphysical evidence
Backed by a physical specimen — a herbarium sheet, sample or voucher held in a collection. “Vouchered” means supported by material evidence, not just an observation.
Coordinate accuracy
no georeferenced coordinates · 10 records without
Open the institutions mapphysical evidence10
10Collections & institutions
Holding institutions4 of 5 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Museu de Zoologia da Universidade de Sao Paulolocation not on record
