Tetraodontidae represents the largest family of Tetraodontiformes with about 130 described species. The order is primarily marine, with only a small fraction of this group subsequently settling in freshwater.

The Tetraodontidae family is characterized by harboring generally rounded fish that have the ability to inflate the stomach with water or air, which acts as a defense mechanism by rapidly increasing body size. The body is usually naked, although some species may have thorn-shaped scales.

The family name (Greek: tetra; four; and odous, tooth) refers to the shape and arrangement of the teeth in their representatives, having two strong fused teeth in both the jaw and the jaw.

Tetraodontidae species have toxins that can be lethal if swallowed. Toxins are usually found in the developing liver, skin and intestines or gonads. The toxins and toxicity of freshwater Tetraodontiformes are poorly known.

Two species are recorded in neotropical freshwater environments, Colomesus asellus (Müller & Troschel, 1849) and Colomesus psittacus (Bloch & Schneider, 1801), a coastal species that occasionally enters freshwater.

Thus only the Colomesus asellus species is totally restricted to freshwater. and found in most of the Amazonian rivers.

Colomesus asellus - Amazon puffer
The Amazonian puffer has a rounded body, with the dorsal portion of the body yellowish presenting five transverse bands and a dark round spot on the caudal peduncle. Its ventral part of the body is clear, its fins are hyaline, with the dorsal fin located in the posterior region of the body and absence of pelvic and adipose fin. Your nostril is tubular.

Colomesus asellus differs from Colomesus psittacusp by the number of dark bars on the dorsum of the interorbital to the peduncle (5 vs. 6) and the smaller number of rays in the pectoral fin, not including the rudimentary (13–16 vs. 16–19).

The possibility of the existence of a new decrepit species such as Colomesus tocantinensis, whose color pattern is essentially the same as that of Colomesus asellus, with five transverse dark bars in the dorsal region of the body, a dark spot in the lower part of the peduncle, is being studied lately. caudal, present or trace or absent in several samples. The interspaces between the dark bars are light yellow, with pigmentation gradually decreasing and turning white in the ventral region and showing a pale pale yellow pattern that contrasts with the gold-yellow pattern present in common Colomesus asellus specimens in Iquitos and Belém.


“… The nailon had moved. I was agitated. The line ran from side to side. Mr. Felix threw away his cigarette and hurried to help me. The fish arrived, thrashed on the floor. What a disappointment: a puffer fish. An undesirable puffer fish. I believe this is still the case today. This ugly, pitying fish embodies the frustration of any fisherman. However, it is not only despised for its ugliness, but mainly for the poison embedded in its flesh ... The fishermen refuse it even more because of its sharp teeth that cut the lines, with the loss of hooks and sinkers. But a fish belonging to such an elegant order of name - Tetraodontiformes - cannot be that useless ... I threw it into the dark river with the usual disdain. So long ago that fish ... And so long it took me to know its importance and to remember it now, with all due respect.” Iveraldo Guimarães - Infinity Sailboats

Colomesus asellus - Amazon puffer

Colomesus asellus Müller & Troschel, 1849

According to FISHBASE:

Kingdom = Animalia ; Phylum = Chordata ; Class = Actinopterygii ; Order =
Tetraodontiformes ; Family = Tetraodontidae ; Genus = Colomesus.

Distribution: South America: Amazon River basin, from Peru to Marajó Island, including tributaries Araguaia and Guaporé; Orinoco River Basin near the mouth; Essequibo river basin.

Size - Maximum Length: 12,8 cm.

Synonyms: Colomesus asellus, Chelichthys asellus, Cheilichthys asellus.

Common name of Colomesus asellus: Baiacu, Baiacu Amazônico, Papagei-Süsswasserkugelfisch, Amazon puffer (EUA).

Colomesus asellus - Amazon puffer

Reference: Ortega, H. and R.P. Vari, 1986. Annotated checklist of the freshwater fishes of Peru. Smithson. Contrib. Zool. (437):1-25.

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Get to know other species by clicking on the links below:

Characiformes (Order)

Cichlidae (Family)

Crenicichla (Genus) - Pike Cichlid

Geophagus (Genus)

Loricariidae (Family) - Plecos

Symphysodon discus (Varieties) - Wild Discus

Ornamental Fish from the Amazon

Colomesus asellus - Amazon puffer

References:

Colomesus asellus - Amazon puffer

FISHBASE = https://www.fishbase.de/summary/Colomesus-asellus

INSTRUÇÃO NORMATIVA INTERMINISTERIAL N°1, DE 3 DE JANEIRO DE 2012. Diário Oficial da União – Seção I, Nº3, quarta-feira, 4 de janeiro de 2012, páginas 26 a 42 – ISSN 1677-7042 INI MPA-MMA (n01-2012 - Peixes Ornamentais Continentais.pdf)

Araújo-Lima, C.A.R.M.; Savastano, D. & Jordão, L.C., 1994, Drift of Colomesus asellus (Teleostei: Tetraodontidae) larvae in the Amazon river. Revue de Hydrobiologie Tropical, 27: 33–38.

Camargo, M. & Maya, T. 2008. Análise populacional do baiacu, Colomesus psittacus (Tetraodontiformes, Tetraodontidae), no estuário o rio Caeté, costa norte do Brasil. Uakari, 4 (1): 23–28.

Haddad Junior, V. 2003. Animais aquáticos de importância médica no Brasil. Revista da Sociedade Brasileira de Medicina Tropical,36(5): 591–597.

Lange, W.R. 1990. Puffer fish poisoning. American Family Physician, 42(4): 1029–1033

Kullander, S.O. 2003. Family Tetraodontidae. In: Reis, R.E.; Kullander, S.O. & Ferraris Jr., C.J. (Eds). Check List of the Freshwater Fishes of South and Central America. Edipucrs, Porto Alegre, Rio Grande do Sul. p. 670–670.

Müller, J.; & Troschel, F.H. 1849. Fische. In: Reisen in Britisch-Guiana in den Jahren 1840-44. Im Auftrag Sr. Mäjestat des Königs von Preussen ausgeführt von Richard Schomburgk. [Versuch einer Fauna und Flora von Britisch-Guiana.] 3. Berlin. p. 618–644.

Nelson, J.S. 2006. Fishes of the world. John Wiley & Sons, Inc., New York. 601pp.

Oliveira, J.S.; Fernandes, S.C.R.; Schwartz, C.A.; Bloch Jr., C.; Melo, J.A.T.; Pires Jr., O.R. & Freitas, J.C. 2006. Toxicity and toxin identification in Colomesus asellus, an Amazonian (Brazil) freshwater pufferfish. Toxicon. 48(1): 55–63.

Colomesus asellus - Amazon puffer

Colomesus asellus - Amazon puffer

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Colomesus asellus - Amazon puffer

VENDA DE PEIXES ORNAMENTAIS DA AMAZÔNIA      ENGLISHSymphysodon discus - Wild Discus

Existem centenas de espécies e variações de peixes amazônico ornamentais.

Conheça algumas dessas espécies clicando em cima dos links:

 

Astronotus ocellatus - Acará-açu

Acarichthys heckelii - Acarazinho Requeu

 

Apistogramma (Gênero) - Acará Anão

Apistogramma agassizii

Apistogramma bitaeniata

Apistogramma eunotus

Apistogramma hippolytae

Apistogramma pertensis

Apistogramma taeniata

 

Biotodoma cupido - Acará Salema

Biotecus opercularis - Acará Saracá

Caquetaia spectabilis - Acará Pérola

 

Characiformes (Ordem)

Carnegiella (Gênero Peixe-borboleta)

Carnegiella marthae - Peixe-borboleta-prateada

Carnegiella schereri - Peixe-borboleta-de-pontos

Carnegiella strigata - Peixe-borboleta-listrada

Chalceus (Gênero) - Peixe Araripirá

Chalceus erythrurus - Peixe Rabo de Fogo

Chalceus macrolepidotus - Peixe Arari Vermelho

Copella arnoldi - Peixe Piratantã

Gnathocharax steindachneri - Tetra-aruanã

Hemigrammus bleheri - Rodostomus

Hemigrammus stictus - Tetra Stictus

Hemiodus gracilis - Cruzeiro-do-Sul

Heterocharax macrolepis - Tetra Violeta

Hyphessobrycon cachimbensis - Tetra Cachimbo

Hyphessobrycon copelandi - Tetra Pena

Hyphessobrycon eque - Tetra Mato Grosso

Hyphessobrycon pulchripinnis - Tetra Limão

Hyphessobrycon scutulatus - Tetra Ouro

Hyphessobrycon vilmae - Neon Chocolate

Leporinus fasciatu - Piau-flamengo

Nannostomus eque - Peixe-lápis Marrom

Nannostomus unifasciatus - Peixe-lápis 1 linha

Paracheirodon axelrodi - Tetra Cardinal

Paracheirodon innesi - Tetra Neon

 

Colomesus asellus - Baiacu Amazônico

 

Crenicichla (Gênero) - Jacundás

Crenicichla acutirostris - Jacundá Flamengo

Crenicichla johanna - Jacundá Olho de Fogo

Crenicichla lugubris - Jacundá Vermelho

Crenicichla macrophthalma  - Jacundá Olhudo

Crenicichla marmorata - Jacundá de Mármore

Crenicichla regani - Jacundá de Folha

Crenicichla stocki - Jacundá da Linha Branca

Crenicichla strigata - Jacunda Riscado

Crenicichla vittata - Jacundá Banana

 

Dicrossus maculatus - Xadrezinho

 

Geophagus (Gênero) - Chaperema

Geophagus altifrons - Chaperema Amarelo

Geophagus megasema - Chaperema Vermelho

Geophagus proximus - Chaperema Mancha de Olho

 

Heros (Gênero) - Acará Severo

Heros efasciatus - Acará Severo

Heros notatus - Acará Severo de Pontos

Heros severus - Acará Severo Peba

 

Laetacara curvicep - Acara curviceps

 

Loricariidae (Família) - Plecos

Baryancistrus sp. "L142" - Acari Bola Branca  "LDA 33"

Farlowella amazona - Peixe Galho

Hemiancistrus sabaji "L075" - Acari Tigre de Bola

Hemiancistrus snethlageae "L141" - Acari Aba Branca

Hypancistrus sp. "L260" - Acari Pão

Hypancistrus sp. "L262" - Acari Pão Pigmentado

Hypancistrus sp. "L333" - Acari Pão Alenquer

Hypancistrus zebra - Acari Zebra

Hypostomus soniai "L137" - Acari Violeta

Leporacanthicus joselimai "L264" - Acari Onça

Panaque armbrusteri "L027" - Acari Boi de Bota

Panaque sp "L271" - Acari Cara de Pão

Peckoltia compta "L134" - Acari Picota Ouro

Peckoltia vittata  "L015" - Acari Teoro

Pseudacanthicus sp. "L097" - AcarI Assacu

Pseudacanthicus sp. "L273" - Acari Red Titanic

Pseudacanthicus sp. "L273" - Acari Yellow Titanic

Pseudancistrus sp. "L259" - Acari Cara Chata

Scobinancistrus pariolispos "L133" - Acari Cotia

Spectracanthicus murinus - Acari Bicudo

 

Mesonauta festivus - Acará Festivo

Monocirrhus polyacanthus - Peixe Folha

Pterophyllum scalare - Acará Bandeira

Retroculus xinguensis - Acará Xinguensis

 

Satanoperca - Acará Porquinho

Satanoperca acuticeps - Acará 5 Pontos

Satanoperca jurupari - Acará Jurupari

Satanoperca lilith - Acará 3 Pontos

Satanoperca pappaterra - Acarazinho

 

Symphysodon aequifasciatus - Acará Disco

Symphysodon discus (Variedades) - Acará Disco

Symphysodon discus - BARRA MANSA

Symphysodon discus - BLUE FACE

Symphysodon discus - BROWN

Symphysodon discus - CUIPEUA

Symphysodon discus - CURUÁ

Symphysodon discus - GRAY GREEN

Symphysodon discus - HECKEL

Symphysodon discus - INANU

Symphysodon discus - LAGO GRANDE

Symphysodon discus - NHAMUNDÁ

Symphysodon discus - MIX

Symphysodon discus - ORANGE LAGO GRANDE

Symphysodon discus - ROYAL

Symphysodon discus - SEMIROYAL

Symphysodon discus - SOLID

 

Taeniacara candidi - Torpedinho

 Teleocichla proselytus - Jacundá da Pedra

Uaru amphiacanthoides - Acará Baru

Symphysodon discus - Wild Discus

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      Na Amazônia, do século XIX, devido à cobiça pela borracha, Wawatu, cunhatã do clã Aruak, tem sua aldeia dizimada por brancos. Apesar de ser forçada a viajar para um local desconhecido, casar-se com guerreiro de origem Karib e sofrer com as diferenças de costumes de seus familiares, ela se apaixona.

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