赤魟 chì gōng

赤魟（学名：Dasyatis akajei）是魟科、魟属生活在海洋中的一种软骨鱼类。体盘亚圆形，体盘宽为体盘长的1.2倍，大者体盘长达1米，重2-3千克。体黄褐色或绿褐色，腹面白色，边缘橙黄色。吻短，稍突出。眼颇小。口底具孔突5个，中间3个较大。齿细小，平扁。成鱼体背面正中至尾刺具刺一纵行，尾上刺较大，尖长，眼后具小刺一小群。腹鳍后缘平直，前后角钝圆。尾细长，为体盘长2-2.7倍，下方均具皮膜。卵胎生，每胎产仔10尾。 

赤魟分布于大西洋、印度洋和太平洋各海区。中国沿海均有分布，分布于东海、南海，也见于广西南宁和龙州淡水中。赤魟属暖温性底层鱼类，栖息于近海泥沙质的海底，以底栖贝类和甲壳类等为食。

Red ray h ó ng (scientific name: Dasyatis akajei) is a kind of cartilaginous fish living in the sea in the family ray and genus ray. The disc is sub-circular, and the width of the disc is 1.2 times the length of the disc. The larger one is 1 meter long and weighs 2-3 kg. The body is yellowish brown or greenish brown, the abdomen is white, and the edge is orange yellow. The kiss is short and slightly prominent. His eyes are rather small. There are 5 perforations at the bottom of the mouth, and the middle 3 are larger. The teeth are small and flat. The adult fish has a longitudinal row of spines from the middle of the back to the tail. The spines on the tail are large, pointed and long, and there are a small group of small spines behind the eyes. The posterior edge of the ventral fin is straight, and the anterior and posterior corners are blunt. The tail is slender, 2-2.7 times the length of the body disc, and there is a membrane below. Egg viviparity, 10 per fetus.