Amphipholis squamata
(Delle Chiaje, 1828) · speciesAt a glance
Sources10 archives
Databases and archives Amphipholis squamata's data was compiled from.
WikipediaWikimedia Foundation4 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility33 696 records↗
OBISOcean Biodiversity Information System31 999 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI651 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics142 specimens↗
GoaTGenomes on a Tree · Sangergenome & karyotype↗
NCBIUS National Library of Medicinegenome & karyotype↗
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.
Amphipholis squamata, common names brooding snake star and dwarf brittle star, is a species complexLe Gac, M., Féral, J.P., Poulin, E., Veyret, M. & Chenuil, A. (2004) Identification of allopatric clades in the cosmopolitan ophiuroid species complex Amphipholis squamata (Echinodermata). The end of a paradox? Marine Ecology Progress Series, 278: 171–178.Boissin E., Feral J.P., Chenuil A. (2008) Defining reproductively isolated units in a cryptic and syntopic species complex using mitochondrial and nuclear markers: the brooding brittle star, Amphipholis squamata (Ophiuroidea). Mol Ecol 17:1732−1744 of brittle stars in the family Amphiuridae.
No narrative description available for this taxon yet.
Habitat & environment3
Other traits2
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 Amphipholis squamata 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.
The complete instruction manual Amphipholis squamata carries — its genome. We read it from three angles — how big it is, how the DNA is packed into chromosomes, and how completely it has been sequenced — and explain how to read each value as you go.
Genome sizehow big the whole instruction manual is
Measured in base pairs (bp) — the individual letters of DNA (human ≈ 3.2 Gb, a bacterium a few million). The chart places this genome on a logarithmic scale — each step to the right is ten times bigger — among reference organisms. Across species a bigger genome loosely tracks with larger cells, slower growth and lower-energy lifestyles (powered flight favours small genomes) — yet it does not imply more genes or a more advanced organism (the long-standing C-value paradox).
Sequencing statusassembly quality — how far to trust these numbers
Assembly level tells you how finished the sequence is — from fragmented contigs, through scaffolds, up to a full chromosome-level assembly. BUSCO % estimates completeness: the share of genes expected to be present that were actually found. These describe the data quality, not the organism.
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 periods (Jurassic, Cretaceous…) every museum uses, shown so you can see which chapter of Earth's history this lineage lived in. The dashed rules marked ✦ are the five great mass extinctions. 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 type65 695 records
Origin
Range
Depth
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.
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Holding institutions26 of 104 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| CEFASlocation not on record | 6 723 |
| Washington, US | 657 |
| Institut Francais pour l'Etude de la Merlocation not on record | 634 |
| Los Angeles, US | 470 |
| Museums Victorialocation not on record | 448 |
| DASSHlocation not on record | 396 |
| Bergen, NO | 287 |
| 486location not on record | 285 |
| Norwegian Institute of Marine Researchlocation not on record | 274 |
| UNICAMPlocation not on record | 189 |
| PNHSlocation not on record | 122 |
| Sydney, AU | 116 |
| 730location not on record | 114 |
| RWSlocation not on record | 105 |
| NTNU-VMlocation not on record | 101 |
| Cambridge, US | 83 |
| Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record | 75 |
| Stockholm, SE | 64 |
| Santa Barbara Museum of Natural Historylocation not on record | 60 |
| Paris, FR | 54 |
| Earth Sciences New Zealandlocation not on record | 45 |
| Research Institute for Agriculture, Fisheries and Food (ILVO)location not on record | 44 |
| Instituto de Ciencias del Mar y Limnología, Unidad Académica Mazatlán, Universidad Nacional Autónoma de Méxicolocation not on record | 42 |
| New Haven, US | 40 |
| Hellenic Centre of Marine Research; Institute for Oceanographylocation not on record | 35 |
| CASlocation not on record | 35 |
| Gothenburg, SE | 35 |
| Western Australian Museumlocation not on record | 32 |
| FCMMlocation not on record | 30 |
| Bergen, NO | 28 |
| Frankfurt am Main | 27 |
| South Kensington, GB | 26 |
| SLU Artdatabankenlocation not on record | 26 |
| Museu Nacional/Universidade Federal do Rio de Janeirolocation not on record | 21 |
| Laboratoria di biologia marina di Triestelocation not on record | 19 |
| Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja Californialocation not on record | 19 |
| Eco laboratory geochemistry Benthic Environments UMR 8222 (4503) Université de Liège Underwater research and oceanographic station (4501)location not on record | 19 |
| UM-RSMASlocation not on record | 19 |
| National Marine Biodiversity Institute of Korealocation not on record | 18 |
| Station Biologique de Roscoff (EDMO:521)location not on record | 18 |
| Université de Liège Underwater research and oceanographic station (4501)location not on record | 17 |
| Victoria, CA | 17 |
| Biomorlocation not on record | 16 |
| NCHSUlocation not on record | 16 |
| The Atlantic reference Centrelocation not on record | 14 |
| ARMS-MBONlocation not on record | 14 |
| Florida Atlantic University, Harbor Branch Oceanographic Museumlocation not on record | 13 |
| Tasmanian Museum & Art Gallerylocation not on record | 13 |
| Universidad Austral de Chilelocation not on record | 12 |
| Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record | 11 |
| Universidad de Antioquia (UdeA)location not on record | 9 |
| Buenos Aires, AR | 8 |
| Cantablocation not on record | 8 |
| Natural History Museum, Londonlocation not on record | 8 |
| University of Floridalocation not on record | 8 |
| Texas Cooperative Wildlife Collectionlocation not on record | 7 |
| DOI/NPS, Salem Maritime National Historic Sitelocation not on record | 7 |
| CSIC-CEAB Centre for Advanced Studies of Blanes (1393) Eco laboratory geochemistry Benthic Environments UMR 8222 (4503) Université de Liège Underwater research and oceanographic station (4501)location not on record | 7 |
| Universidad del Valle (UniValle)location not on record | 6 |
| Universidad Católica del Nortelocation not on record | 6 |
| National Institute of Biological Resourceslocation not on record | 5 |
| Citadel Hill, GB | 4 |
| Florida Museum of Natural Historylocation not on record | 4 |
| Tromsø, NO | 3 |
| Universidad del Marlocation not on record | 3 |
| Eco laboratory geochemistry Benthic Environments UMR 8222 (4503) Phaxas Expertise Of Marine Fauna (4507) Université de Liège Underwater research and oceanographic station (4501)location not on record | 3 |
| Saint John, CA | 3 |
| 630location not on record | 3 |
| Eco laboratory geochemistry Benthic Environments UMR 8222 (4503)location not on record | 3 |
| Brussels, BE | 2 |
| Sam Noble Oklahoma Museum of Natural Historylocation not on record | 2 |
| Chicago, US | 2 |
| ICATMARlocation not on record | 2 |
| QVMAGlocation not on record | 2 |
| Toronto, CA | 2 |
| Unidad Multidisciplinaria de Docencia e Investigación, Campus Sisal, Facultad de Ciencias, Universidad Nacional Autónoma de Méxicolocation not on record | 2 |
| CSIC-CEAB Centre for Advanced Studies of Blanes (1393) Eco laboratory geochemistry Benthic Environments UMR 8222 (4503) Phaxas Expertise Of Marine Fauna (4507) Université de Liège Underwater research and oceanographic station (4501)location not on record | 2 |
| Museum and Art Gallery of the Northern Territorylocation not on record | 2 |
| University Museum of Bergen, Natural History Collectionslocation not on record | 2 |
| Natick, US | 2 |
| Helsinki, FI | 2 |
| Honolulu, US | 2 |
| Museu Nacional de História Natural e da Ciêncialocation not on record | 1 |
| Barcelona, ES | 1 |
| RBINS-Scientific Heritagelocation not on record | 1 |
| Senckenberg Research Institute and Natural History Museumlocation not on record | 1 |
| University of Guelph, Centre for Biodiversity Genomicslocation not on record | 1 |
| Smithsonian Institution National Museum of Natural History, Department of Invertebrate Zoologylocation not on record | 1 |
| University of Oslo (UiO)location not on record | 1 |
| The Atlantic Reference Centre (ARC)location not on record | 1 |
| National Institute of Water and Atmospheric Research, Wellingtonlocation not on record | 1 |
| CSIC-CEAB Centre for Advanced Studies of Blanes (1393) Eco laboratory geochemistry Benthic Environments UMR 8222 (4503)location not on record | 1 |
| BioFokuslocation not on record | 1 |
| University of California San Diegolocation not on record | 1 |
| Natural History Museum Rotterdamlocation not on record | 1 |
| Maurice Lamontagne Institutelocation not on record | 1 |
| Turkmen Agricultural University named after S.A. Niyazovlocation not on record | 1 |
| Royal British Columbia Museumlocation not on record | 1 |
| CSIC-CEAB Centre for Advanced Studies of Blanes (1393)location not on record | 1 |
| University of California Museum of Paleontologylocation not on record | 1 |
| Auckland, NZ | 1 |
| CSIC-CEAB Centre for Advanced Studies of Blanes (1393) Phaxas Expertise Of Marine Fauna (4507)location not on record | 1 |
| Brussels, BE | 1 |
| HCMRlocation not on record | 1 |
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Where the DNA of Amphipholis squamata 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?
Measured at samplingin-field
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.