广西科学2025，Vol.32Issue(1)：78-87,10.DOI:10.13656/j.cnki.gxkx.20250102.001
中国沿海拟相手蟹属(Parasesarma)一新记录种
A New Record Species of Parasesarma from the Coast of China
摘要
Abstract
The crabs of Parasesarma De Man,1895 collected in the mangroves along the coast of China from 2012 to 2020 were studied,and a new record species was discovered.Through morphological characterization and mitochondrial COI and 16S rRNA gene sequence analysis,this new species was identified as Parasesarma luomi Serène,1981,a new record species of Parasesarma De Man,1895 in China.The diagnostic characteris-tics of P.luomi Serène,1981 are as following:carapace rectangular,with width 1.2 to 1.3 times greater than length;mesogastric and cardiac regions well defined;postfrontal margin with 4 lobes;external orbital tooth triangular,directed upward;lateral margins of carapace without tooth;eyestalk length greater than width;male chelipeds robust,palm with two transverse pectinated crests on upper surface;dorsal surface of dactylus with 16-18 transversely broadened tubercles;walking legs flattened;male pleon triangular;somite 3 widest,and somite 6 slightly longer than somite 5.The male first gonopod is slender and straight,with the apical process being long and thin,bent to form an angle of 45°.The morphological characteristics,phylogeny and distribution of P.luomi Serène,1981 were described in detail.The research results can provide basic data for the classification and research of the crabs of Parasesarma De Man,1895 in China.关键词
敛拟相手蟹/拟相手蟹属/新记录种/红树林/中国沿海Key words
Parasesarma luomi Serène,1981/Parasesarma De Man,1895/new record species/mangrove/the coast of China分类
生物学引用本文复制引用
杨明柳,高霆炜,阎冰,吴斌..中国沿海拟相手蟹属(Parasesarma)一新记录种[J].广西科学,2025,32(1):78-87,10.基金项目
国家自然科学基金项目(32060282),广西自然科学基金项目(2017GXNSFBA198163)和自治区直属公益性科研院所基本科研业务费专项资金项目(2023GMRC-04)资助. （32060282）
