Aequidens tetramerus
(Heckel, 1840) · speciesAt a glance
Sources8 archives
Databases and archives Aequidens tetramerus's data was compiled from.
WikipediaWikimedia Foundation6 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility2 055 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI24 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics18 specimens↗
Open Tree of LifeOpenTreephylogeny backbone↗
Catalogue of LifeCOLtaxonomy↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
The saddle cichlid (Aequidens tetramerus) is a species of cichlid from the tribe Cichlasomatini, part of the subfamily Cichlasomatinae from South America. It is the type species of the genus Aequidens. It is reasonably common in the aquarium trade.
No narrative description available for this taxon yet.
Size & morphology2
Habitat & environment2
Uses & economy1
Other traits1
A DNA barcode is a short, standardised stretch of genes that works like a fingerprint — enough to tell one species from another. Below is the molecular trace Aequidens tetramerus has left across the world's sequence archives.
At a glance
★ the standard DNA barcode for this group — the short region actually read to tell this species apart. The rest are extra genes sequenced along the way.
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
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.
Record type2 055 records
Origin
Range
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
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.
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Holding institutions14 of 46 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Geneva, CH | 507 |
| Museu de Zoologia da Universidade de Sao Paulolocation not on record | 111 |
| PUC-RSlocation not on record | 106 |
| Museu Paraense Emílio Goeldilocation not on record | 102 |
| Instituto Nacional de Pesquisas da Amazônia (INPA)location not on record | 100 |
| Chicago, US | 81 |
| Stockholm, SE | 67 |
| Instituto de Investigación de Recursos Biológicos Alexander von Humboldt (IAvH)location not on record | 59 |
| Champaign, US | 57 |
| Toronto, CA | 53 |
| CASlocation not on record | 51 |
| Pontificia Universidad Javeriana (PUJ)location not on record | 46 |
| Cambridge, US | 44 |
| University of Nebraskalocation not on record | 38 |
| UNICAMPlocation not on record | 35 |
| Washington, US | 31 |
| Instituto de Biodiversidad de Venezuela - INBIOlocation not on record | 30 |
| FishBaselocation not on record | 23 |
| Montgomery, US | 18 |
| Los Angeles, US | 18 |
| Ann Arbor, US | 17 |
| Londrina, BR | 17 |
| Universidad del Tolima (UT)location not on record | 17 |
| Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record | 16 |
| USP-RPlocation not on record | 15 |
| Texas Cooperative Wildlife Collectionlocation not on record | 8 |
| 8 | |
| Instituto Amazónico de Investigaciones Científicas - SINCHIlocation not on record | 6 |
| Universidad Católica de Oriente (UCO)location not on record | 5 |
| Museo de Historia Natural “Gustavo Orcés V"location not on record | 5 |
| Instituto para la Investigación y la Preservación del Patrimonio Cultural y Natural del Valle del Cauca - INCIVAlocation not on record | 4 |
| UEMlocation not on record | 4 |
| Paris, FR | 3 |
| Universidade Federal do Parálocation not on record | 3 |
| Universidad de la Amazonia (UniAmazonia)location not on record | 3 |
| CIRA-UABJBlocation not on record | 3 |
| Oregon State Universitylocation not on record | 2 |
| Louisiana State University, Museum of Zoologylocation not on record | 2 |
| Universidad de La Salle (La Salle)location not on record | 2 |
| Universidad de los Llanos (UniLlanos)location not on record | 2 |
| Texas Memorial Museum, Texas Natural History Collectionlocation not on record | 2 |
| Frankfurt am Main | 1 |
| Museu Nacional/Universidade Federal do Rio de Janeirolocation not on record | 1 |
| University of Alabamalocation not on record | 1 |
| GeoPark Colombia S.A.S (GeoPark)location not on record | 1 |
| Royal Museum for Central Africalocation not on record | 1 |
Where the DNA of Aequidens tetramerus was picked up in samples of water, soil or air — nobody saw the organism, only its DNA left behind. A trace is a clue that the species was near, not a confirmed sighting.
Signal
Where its DNA was found
How strong is each trace?
Modelled climatemodelled
How to read this: each dot is one detection of this species' DNA in an environmental sample. The confidence meter weighs how many independent studies and places back up the signal — one detection in one study is a hint; many across several studies is solid. Records dated before 2008 (when eDNA methods began) are treated as likely mislabeled and left off the map.