We determined the mitochondrial DNA sequence of S. yangtsekiense and discussed the phylogenetic status of freshwater crabs in Brachyuran according to gene arrangement features and sequence data sets.

• 本文以长江华溪蟹为代表，通过对线粒体基因组序列的测定，从基因序列和排列顺序2个方面探讨淡水蟹类在短尾类中的系统地位；