51:
33:
314:(SL). The lateral line has 39–42 scales. There are 10–14 rays in the pectoral fin, 6–7 in the pelvic fin, and 23–30 in the anal fin. The dorsal lobe of the caudal fin has 12–14 rays, and the ventral lobe has 10, making for 22–24 rays total in the caudal fin. The body is somewhat compressed, and is at its greatest depth just past the start of the dorsal fin. No sexual dimorphism is known.
196:. It shares several visual aspects with multiple species therein, but has its own diagnostic features, including a silver lateral stripe overlaid by a repeated pattern of chevron-shaped markings. Aside from its general species relationships, its range, and its appearance, little has been published regarding other aspects of
323:, and includes a lighter belly, as well as a reflective silver lateral stripe. The upper half of the body turns a chestnut-brown upon preservation in alcohol, while the lower half turns yellowish; the silver stripe remains prominent. The fins are largely hyaline (clear), though may be slightly grayish.
334:
has no dark lateral stripe; it does, however, have a series of prominent chevron markings that extend down either side. These chevrons are extended at either end to connect to the next marking, creating a continuous pattern that overlays a silver lateral stripe rather than a dark one. There is also a
389:
floodplain, which is a patchwork-esque spread of savanna and wetland biomes. There are also occasional patches of forest. The Mamoré river is found in the same lowlands as a large portion of these floodplains. To the southwest, the Madidi river is surrounded by savannas as well, and further by
820:
Molina-Carpio, Jorge; Espinoza, Jhan Carlo; Vauchel, Philippe; Ronchail, Josyane; Gutierrez Caloir, Beatriz; Guyot, Jean-Loup; Noriega, Luis (26 April 2017). "Hydroclimatology of the Upper
Madeira River basin: spatio-temporal variability and trends".
181:. Its scientific name is an allusion to its range, which includes the Candelaria, Madidi, and Mamoré rivers. Though it lacks a conservation status from the IUCN, a significant portion of its habitat is contained within the
857:
409:, which hosts the highest observed biodiversity of terrestrial animals. High biodiversity is also known in the relevant ichthyofauna, with over 300 recorded fish species, including
1021:
215:. It currently has no known scientific synonyms, retaining its original designation; further, it lacks a common name. Before being recognized as its own species, specimens of
754:
887:
993:
679:
285:
is endemic to
Bolivia, its specific name originates therein; the suffix "-ensis" denotes presence in or affiliation with a location. The genus name
514:
624:
293:. Why this name was chosen in particular was not clarified in the nominal text, but it may originate in the scales of type species
479:
1026:
649:"Astyanax boliviensis Ruiz-C & Román-Valencia & Taphorn & Buckup & Ortega 2018, sp. nov. - Plazi TreatmentBank"
1041:
702:"Astyanax gandhiae Ruiz-C & Román-Valencia & Taphorn & Buckup & Ortega 2018, sp. nov. - Plazi TreatmentBank"
211:
was described in 2018 by a group of five ichthyologists during a revision of the species-group surrounding congener
162:
560:
Riuz-C, Raquel I.; Román-Valencia, César; Taphorn, Donald C.; Buckup, Paulo A.; Ortega, Hernán (8 February 2018).
50:
562:"Revision of the Astyanax orthodus species-group (Teleostei: Characidae) with descriptions of three new species"
1036:
1031:
437:
351:
with a somewhat polygonal shape, and another humeral spot becomes more obvious upon preservation in alcohol.
948:
192:
is affiliated with eight other species, all of which are part of a species group centered around congener
755:"REVISIĂ“N DE PECES DE LOS AFLUENTES DEL RĂŤO MOILE CUENCA ALTA DEL RĂŤO ICHILO, DEPARTAMENTO DE SANTA CRUZ"
269:
262:
242:
145:
258:
250:
238:
727:
701:
648:
531:
467:
830:
509:
406:
254:
246:
182:
295:
363:
45:
926:
838:
769:
569:
386:
319:
311:
122:
888:"Bolivia's Madidi National Park home to world's largest array of land life, survey finds"
375:
834:
794:
92:
1015:
620:
379:
233:
102:
915:"Ichthyofauna of the megadiverse Madidi National Park in the Bolivian Andean Amazon"
32:
971:
371:
348:
842:
753:
Gutierrez, Carlos
Ergueta; Huanto, Robert B; Sossa, Gina; Fernandez, Sara (2021).
773:
728:"Astyanax orthodus Eigenmann in Eigenmann & Ogle 1907 - Plazi TreatmentBank"
591:"Family CHARACIDAE: Subfamily STETHAPRIONINAE Eigenmann 1907 (American Tetras)"
405:. However, a great deal of its native range is contained within the protected
112:
62:
931:
914:
382:. Specific biotope preferences, as well as diet and sympatry, are unknown.
219:
originating from the
Madeira river were thought to be examples of congener
980:
965:
633:
574:
561:
343:. This spot can extend up to the origin of the anal fin, but no further.
82:
985:
998:
590:
367:
178:
674:
177:
is a small species of fish native to a handful of rivers in northern
72:
942:
413:. Due to its presence in areas with notable conservation histories,
290:
532:"Astyanax villwocki Zarske & Gery 1999 - Plazi TreatmentBank"
500:
402:
946:
442:
Ruiz-C, Román-Valencia, Taphorn B., Buckup & Ortega, 2018"
289:
is a reference to a Trojan warrior of the same name from the
472:
Ruiz-C., Román-Valencia, Taphorn, Buckup & Ortega, 2018"
589:
Scharpf, Christopher; Lazara, Kenneth J. (15 April 2024).
505:
Ruiz-C, Román-Valencia, Taphorn, Buckup & Ortega 2018"
335:
dark spot on the caudal peduncle; the only member of the
362:
was originally described from a small stream inside the
801:. Latin America & Caribbean Geographic. 3 July 2022
339:
species group not to have a caudal-peduncle marking is
858:"Palms of the Lower Madidi River in Northern Bolivia"
795:"Madeira River & Basin (South America) | LAC Geo"
317:
The base body color is a middle silver, as with most
299:, which are large and silver like a shield or armor.
185:, one of the largest protected regions in the world.
955:
370:. Today, it is also known to also be found in the
919:Neotropical Hydrobiology and Aquatic Conservation
526:
524:
385:The Maderia basin hosts a large portion of the
913:Miranda-Chumacero, Guido (21 December 2022).
417:is most likely not at risk of going extinct.
8:
1022:Taxa named by Donald Charles Taphorn Baechle
943:
615:
613:
611:
555:
553:
378:rivers, which are both tributaries of the
326:Unlike several other members of the genus
310:can reach roughly 9 cm (3.5 in)
31:
20:
930:
856:Couvreur, Thomas L.P. (9 February 2011).
573:
432:
430:
680:Global Biodiversity Information Facility
229:is one of nine species that make up the
426:
7:
40:Preserved specimen; scale bar 1 cm
515:National Museum of Natural History
14:
480:World Register of Marine Species
49:
401:has not been evaluated by the
1:
843:10.1080/02626667.2016.1267861
823:Hydrological Sciences Journal
200:, such as behavior and diet.
566:European Journal of Taxonomy
892:Mongabay Environmental News
774:10.13140/RG.2.2.34500.71042
165:, Buckup & Ortega, 2018
1058:
161:Ruiz-C., Román-Valencia,
151:
144:
46:Scientific classification
44:
39:
30:
23:
623:; Pauly, Daniel (eds.).
466:Bailly, Nicolas (2021).
355:Distribution and habitat
1027:Fish described in 2018
932:10.55565/nhac.gcja3363
734:. Plazi Treatment Bank
675:"Astyanax boliviensis"
1042:Fish of South America
708:. Plazi TreatmentBank
655:. Plazi TreatmentBank
538:. Plazi TreatmentBank
236:. The others include
957:Astyanax boliviensis
637:. June 2023 version.
627:Astyanax boliviensis
575:10.5852/ejt.2018.402
510:Encyclopedia of Life
503:Astyanax boliviensis
470:Astyanax boliviensis
440:Astyanax boliviensis
407:Madidi National Park
399:Astyanax boliviensis
390:lowland rainforest.
360:Astyanax boliviensis
308:Astyanax boliviensis
227:Astyanax boliviensis
209:Astyanax boliviensis
183:Madidi National Park
174:Astyanax boliviensis
155:Astyanax boliviensis
25:Astyanax boliviensis
835:2017HydSJ..62..911M
732:treatment.plazi.org
706:treatment.plazi.org
595:The ETYFish Project
394:Conservation status
296:Astyanax argentatus
188:Described in 2018,
137:A. boliviensis
364:Iturralde Province
270:Astyanax yariguies
263:Astyanax villwocki
243:Astyanax bopiensis
221:Astyanax villwocki
1009:
1008:
949:Taxon identifiers
337:Astyanax orthodus
259:Astyanax superbus
251:Astyanax gandhiae
239:Astyanax orthodus
231:Astyanax orthodus
213:Astyanax orthodus
194:Astyanax orthodus
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347:also has a dark
157:
54:
53:
35:
21:
1057:
1056:
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1037:Fish of Bolivia
1032:Astyanax (fish)
1012:
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387:Llanos de Moxos
357:
312:standard length
305:
279:
255:Astyanax moorii
247:Astyanax embera
206:
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159:
153:
140:
48:
17:
16:Species of fish
12:
11:
5:
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977:
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829:(6): 911–927.
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640:
621:Froese, Rainer
607:
581:
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415:A. boliviensis
411:A. boliviensis
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345:A. boliviensis
332:A. boliviensis
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283:A. boliviensis
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217:A. boliviensis
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198:A. boliviensis
190:A. boliviensis
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93:Actinopterygii
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894:. 30 May 2018
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380:Madeira river
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234:species group
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146:Binomial name
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103:Characiformes
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19:
956:
922:
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896:. Retrieved
891:
882:
870:. Retrieved
865:
861:
851:
826:
822:
815:
803:. Retrieved
798:
789:
777:. Retrieved
768:(2): 50–54.
765:
761:
748:
736:. Retrieved
731:
722:
710:. Retrieved
705:
696:
684:. Retrieved
678:
669:
657:. Retrieved
653:tb.plazi.org
652:
643:
632:
626:
598:. Retrieved
594:
584:
565:
540:. Retrieved
536:tb.plazi.org
535:
508:
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483:. Retrieved
475:
469:
461:
449:. Retrieved
445:
439:
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410:
398:
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359:
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349:humeral spot
344:
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136:
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123:
24:
18:
446:zoobank.org
341:A. ghandiae
303:Description
1016:Categories
972:Q116178230
868:(1): 37–45
799:lacgeo.com
762:Kempffiana
421:References
113:Characidae
277:Etymology
131:Species:
69:Kingdom:
63:Eukaryota
981:FishBase
966:Wikidata
634:FishBase
328:Astyanax
320:Astyanax
287:Astyanax
281:Because
204:Taxonomy
124:Astyanax
109:Family:
83:Chordata
79:Phylum:
73:Animalia
59:Domain:
999:9256384
831:Bibcode
568:(402).
368:Bolivia
179:Bolivia
163:Taphorn
119:Genus:
99:Order:
89:Class:
898:4 June
872:4 June
805:4 June
779:4 June
738:4 June
712:4 June
686:4 June
659:4 June
542:4 June
485:4 June
451:4 June
376:Mamoré
372:Madidi
986:69191
925:(2).
862:Palms
758:(PDF)
600:6 May
476:WoRMS
291:Iliad
994:GBIF
900:2023
874:2023
807:2023
781:2023
740:2023
714:2023
688:2023
661:2023
602:2024
544:2023
487:2023
453:2023
403:IUCN
374:and
267:and
927:doi
839:doi
770:doi
570:doi
366:of
1018::
996::
983::
968::
921:.
917:.
890:.
866:55
864:.
860:.
837:.
827:62
825:.
797:.
766:17
764:.
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704:.
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651:.
631:.
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593:.
564:.
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513:.
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478:.
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444:.
429:^
330:,
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261:,
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253:,
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245:,
241:,
223:.
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625:"
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438:"
265:,
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
