English term
Spiny fish
| 4 +1 | Baiacu |
Mario Freitas
|
| 4 +1 | peixe leão |
Mario Freitas
|
| 4 | acantopterígio |
Matheus Chaud
|
| 4 | Perca fluviatilis..Perca flavescens |
airmailrpl
|
| 4 | Acanthopterygii |
Leonardo Faria
|
Proposed translations
Brazil
IT Specialist • M.A. in Linguistics
Native in: Portuguese (Variant: Brazilian) 
Works in: English to Portuguese, Spanish to Portuguese, Portuguese to English, and 1 more.
acantopterígio
https://www.britannica.com/animal/spiny-finned-fish
Spiny-finned fish, also called spiny-rayed fish, any member of the superorder Acanthopterygii,
https://www.priberam.pt/dlpo/acantopterígio
Subordem de peixes que, como o ruivo, têm raios espiniformes e duros nas barbatanas.
Brazil
32 years engineering/law/contracts
Native in: English (Variant: US) , Portuguese (Variant: Brazilian) 
Works in: English to Portuguese, Portuguese to English
Baiacu
Brazil
Technical - Fast - good price - accurate
Native in: English (Variant: US) , Portuguese (Variant: Brazilian)
Works in: English to Portuguese, Portuguese to English, English, and 1 more.
Perca fluviatilis..Perca flavescens
Spiny-finned Fish | Britannica.com
https://www.britannica.com/topic-browse/Animals/Fish/Spiny-f...
either of two species of fish, the common and the yellow perch (Perca fluviatilis and P. flavescens, sometimes considered as single species, P. fluviatilis) of the family Percidae (order Perciformes). The name also is widely, and sometimes confusingly, applied to a variety of other fishes.
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Note added at 9 hrs (2017-10-12 21:19:39 GMT)
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Perca fluviatilis (fish) => perca-europeia (Portuguese
Eats a variety of aquatic organisms, including fish (including conspecifics), amphipods, crabs, isopods, shrimps, insects, fish eggs and larvae, cladocerans, copepods and mysids (FishBase, 2004).
http://issg.org/database/species/ecology.asp?si=548&fr=1&sts...
Brazil
32 years engineering/law/contracts
Native in: English (Variant: US) , Portuguese (Variant: Brazilian)
Works in: English to Portuguese, Portuguese to English
peixe leão
https://www.google.com.br/search?q=peixe leão&um=1&client=fi...
Brazil
Formed in English and Biology. Letters
Native in: Portuguese
Works in: English to Portuguese, Italian to Portuguese, Portuguese to English
Discussion
http://eunis.eea.europa.eu/countries/DK/species?&pageSize=10...
«Squalus acanthias» (nome científico):
http://www.fao.org/wairdocs/tan/x5994e/x5994e01.htm
Um dicionário que parece confirmar a tradução, uma vez que o animal é conhecido por outros nomes:
https://books.google.pt/books?id=5AnWAgAAQBAJ&pg=PA169&lpg=P...
http://www.pesca2.com/diccionario/listado.cfm?indice=1&letra...
https://issuu.com/pescacomamostras/docs/nomes_cient_ficos_e_...
Serránido japonés Perca gigante Percas de agua dulce nep Tromperos nep ..... Peprilus simillimus Peprilus triacanthus Perca flavescens Perca fluviatilis Percophis brasilianus ..... Lagartos Gatos-cabeçudos Lagarto-da-costa Baiacu-vermelho.
https://www.google.com.br/search?q=Pterois&um=1&client=firef...
A perca é um peixe de água doce, não é o spiny fish (peixe de mar).
http://issg.org/database/species/ecology.asp?si=548&fr=1&sts...