crustaceans characteristically having five pairs of locomotor appendages each joined to a segment of the thorax
cephalopods having eight short tentacles plus two long ones
造句
This would cause the uneven distribution of different species in the East China Sea, which was the major reason to the low diversity of pelagic Decapods in the East China Sea. 中型瑩蝦的大量出現是影響東海浮游十足類多樣性指數值較低的主要原因。