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Protanguillidae is a sister group to all other eels. They are monophyletic, yet also strongly synapomorphic with all other eel species. Molecular analysis shows that all other eels are also monophyletic, showing that they may have broken off directly from the
Protanguillidae. For this reason it is
463:
Springer, V. G. (2015). The Gill-Arch
Musculature of Protanguilla, the Morphologically Most Primitive Eel (Teleostei: Anguilliformes), Compared with That of Other Putatively Primitive Extant Eels and Other Elopomorphs, 103(2), 595–620. doi:
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332:. It is very different from all other living eels, and scientists estimate it must have diverged from the others around 200 million years ago, during the
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366:"A 'living fossil' eel (Anguilliformes: Protanguillidae, fam nov) from an undersea cave in Palau"
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The body is very small and slender, about 18 cm long. The eel has a second
275:. Individuals were found swimming in March 2010 in a deep underwater cave in a
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Johnson, G. D.; Ida H.; Sakaue J.; Sado T.; Asahida T.; Miya M. (2012).
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320:, features previously found only in fossilised eels. Its full set of
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336:. It thus has not only its own species, but also its own genus and
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has never previously been found in an eel, but is common in
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340:, as well, and has been referred to by scientists as a "
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481:"New Pacific eel is a 'living fossil', scientists say"
263:(first eel), which is in turn the only genus in its
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522:"Scientists discover the most primitive living eel"
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10.2305/IUCN.UK.2022-2.RLTS.T103707334A103708468.en
418:McCosker, J.; Tighe, K.; Smith, D. G. (2022).
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505:'Fossil eel' squirms into the record books
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230:G. D. Johnson, H. Ida & Sakaue, 2012
56:(c,d) head in lateral and ventral view;
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194:G.D. Johnson, H. Ida & Miya, 2012
178:G.D. Johnson, H. Ida & Miya, 2012
7:
1267:IUCN Red List data deficient species
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1200:
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359:
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429:IUCN Red List of Threatened Species
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1021:
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371:Proceedings of the Royal Society
100:
479:Rincon, Paul (17 August 2011).
374:. (in press) (1730): 934–943.
1:
1220:. You can help Knowledge by
60:(f,g) stained body scales.
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1199:
436:: e.T103707334A103708468.
273:Palauan primitive cave eel
1277:Fish of the Pacific Ocean
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97:Scientific classification
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1287:Fish described in 2012
380:10.1098/rspb.2011.1289
309:
1282:Monotypic fish genera
308:
271:. Its common name is
54:, juvenile, 65 mm SL;
1292:Anguilliformes stubs
840:(Bobtail snipe eels)
636:Families by suborder
509:Agence France-Presse
67:Conservation status
667:Synaphobranchidae
660:Synaphobranchoidei
422:Protanguilla palau
310:
239:Protanguilla palau
224:Protanguilla palau
58:(e) gill opening;
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1166:Open Tree of Life
1054:Taxon identifiers
1045:
1044:
1013:
1012:
886:
885:
878:
870:
862:
861:(Freshwater eels)
841:
833:
825:
822:Saccopharyngidae
817:
807:Saccopharyngoidei
798:
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699:
691:
688:Heterenchelyidae
670:
511:, 16 August 2011.
464:10.1643/CI-14-152
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279:off the coast of
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44:, female, 176 mm
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999:Sina and the Eel
957:Eel life history
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814:Eurypharyngidae
797:(Spaghetti eels)
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768:Nettastomatidae
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669:(Cutthroat eels)
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644:Protanguilloidei
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875:Serrivomeridae
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770:(Duckbill eels)
760:Muraenesocidae
754:(Longneck eels)
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295:Characteristics
269:Protanguillidae
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174:Protanguillidae
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342:living fossil
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316:and under 90
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289:living fossil
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277:fringing reef
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215:Binomial name
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206:P. palau
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1222:expanding it
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1092:Protanguilla
1062:Protanguilla
1061:
997:
993:Eel cuddling
926:Jellied eels
869:(Snipe eels)
859:Anguillidae
851:Anguilloidei
795:Moringuidae
788:Moringuoidei
778:(Snake eels)
706:(Moray eels)
650:
624:Superorder:
543:
530:. Retrieved
525:
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488:. Retrieved
459:
447:. Retrieved
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369:
334:Mesozoic era
311:
287:known as a "
285:
272:
268:
260:Protanguilla
259:
258:
252:only species
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189:Protanguilla
188:
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173:
163:
25:Protanguilla
24:
18:
1127:iNaturalist
1086:Wikispecies
967:Ely Eel Day
936:Eel noodles
838:Cyematidae
723:Chlopsidae
716:Chlopsoidei
704:Muraenidae
698:(Thin eels)
680:Muraenoidei
626:Elopomorpha
612:Subphylum:
449:20 February
322:gill rakers
1261:Categories
977:Glass eels
962:Eel ladder
911:Eel (food)
744:Congridae
736:Congroidei
690:(Mud eels)
614:Vertebrata
348:References
314:premaxilla
160:Suborder:
1077:Q14672127
832:(Onejaws)
746:(Congers)
600:Kingdom:
532:17 August
490:17 August
330:bony fish
318:vertebrae
200:Species:
120:Kingdom:
114:Eukaryota
1071:Wikidata
1027:Category
984:(larvae)
931:Kabayaki
608:Chordata
606:Phylum:
602:Animalia
485:BBC News
398:21849321
170:Family:
134:Chordata
130:Phylum:
124:Animalia
110:Domain:
87:IUCN 3.1
52:Paratype
42:Holotype
1158:1405574
1145:1454485
1119:6166509
1037:Commons
1005:Sniggle
972:Eel pot
921:Eel pie
904:As food
618:Class:
389:3259923
324:in its
254:in the
244:species
184:Genus:
150:Order:
140:Class:
85: (
1184:588638
1171:827280
1132:511415
941:Unadon
528:. 2011
396:
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338:family
265:family
250:, the
50:(b–g)
1212:This
1179:WoRMS
1140:IRMNG
988:Abaia
916:Anago
281:Palau
256:genus
242:is a
1272:Eels
1218:stub
1153:NCBI
1114:GBIF
1106:6XDF
590:Eels
534:2011
492:2011
451:2024
434:2022
394:PMID
40:(a)
1101:CoL
438:doi
384:PMC
376:doi
344:".
291:".
248:eel
246:of
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494:.
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440::
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378::
89:)
48:.
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