| 单词 | Malacostraca | 
| 释义 | Malacostraca [´mal·ǝ`kä·strǝ·kǝ]  INVERTEBRATE ZOOLOGY A large, diversified subclass of Crustacea including shrimps, lobsters, crabs, sow bugs, and their allies; generally characterized by having a maximum of 19 pairs of appendages and trunk limbs which are sharply differentiated into thoracic and abdominal series.  | 
	
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