An edible bivalve mollusk of the family Mallidae (illustration). The shell reaches a length of 9.5 cm, a height of 9.5 cm, and a width of 6.5 cm. The shell is thin, round, and well inflated. When young, it has a pale pink arrowhead pattern, but as it matures, the apex of the shell is red and becomes paler toward the ventral edge, and a soft, pale yellowish brown shell skin grows along 40 to 50 thin, shallow radial grooves. The inner surface is pale pink to reddish purple. At the occlusion, there are small fang-like teeth below the apex of the shell, and long, plate-like lateral teeth at the anterior and posterior edges. The soft body's foot is long and black-purple, and is bent inside the shell. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
ザルガイ科の食用二枚貝(イラスト)。殻の長さ9.5cm,高さ9.5cm,幅6.5cmに達する。殻は薄く丸くよく膨らむ。幼貝では淡紅色の矢絣模様があるが,成長すると殻頂が紅色で腹縁へ向かって淡色になり,淡黄褐色の軟らかい殻皮が40~50条の細く浅い放射溝に沿って生える。内面は淡紅色から紅紫色である。かみ合せには殻頂の下に小さいきば状の歯があり,前・後縁に板状の長い側歯がある。軟体の足は黒紫色で長くて殻の中では折れ曲がっている。
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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