Salmon and sea bass

Japanese: サケスズキ

A general term for fishes belonging to the order Salmopercae that inhabit the freshwaters of North America. It consists of two families and three species. In Latin, "salmo" means salmon and "perca" means sea bass. In terms of classification, this group is intermediate between the primitive salmonoid type and the evolved sea bass type, but is considered to be closer to the sea bass type in several respects, such as having pecten scales, an upper jaw bordered only by the premaxilla, no teeth on the maxilla, well-developed spines on the fins, a lack of an orbital sphenoid bone, and the front end of the pelvic girdle attached to the pseudoclavicular bone.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

北アメリカの淡水にすむサケスズキ目Salmopercaeに属する魚類の総称。2科3種からなる。ラテン語でsalmoはサケ，percaはスズキを意味する。分類上この群は原始的なサケ型と進化したスズキ型との中間に位置するが，櫛鱗（しつりん）をもち，上あごが前上顎骨のみで縁取られ，主上顎骨には歯がなく，ひれに棘条（きよくじよう）が発達し，眼窩蝶形骨（がんかちようけいこつ）を欠き，腰帯の前端が擬鎖骨に付着するなどの諸点でスズキ型により近いとされる。

出典　株式会社平凡社世界大百科事典第２版について　情報

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