华溪蟹属三新种的描述(十足目:华溪蟹科)  

ON THREE NEW SPECIES OF SINOPOTAMON (DECAPODA: SINOPOTAMIDAE)

作　　者：戴爱云[1] 江永平[1] 

机构地区：[1]中国科学院动物研究所,北京100080

出　　处：《动物分类学报》1991年第3期290-296,共7页Acta Zootaxonomica Sinica

基　　金：国家自然科学基金

摘　　要：本文描述了在中国江西、湖南及广东三省发现的华溪蟹属Sinopotmon三个新种:不等叶华溪蟹S.unaequum,sp.nov.,双叶华溪蟹S.bilobatum sp.nov.及南岭华溪蟹S.nanlingense SD.nov.Sinopotamon unaequum sp. nov. (P1. 1.1, fig. 1)Holotype ♂, allotype ♀ (JX8188083), paratypes 3♂♂, 5♀♀(2 juv.), Jianggangshan reclaim and cultivate wasteland farm, Jianggangshan City(26.5N, 114.1E) Jiangxi Province, November 1986; 3♂♂, 2♀♀, Anfu County, Jiangxi Province, August, 1981.Surface of carapace with scattered short setae which near the postero-lateral margin with 20-25 serrated teeth. Male first pleopod reaching the tubercle of the fifth sternum, the penultimate segcent about 2.5 times as long as the last segment, dorsal lobe of the last segment rounded truncate and longer than ventral lobe. Male abdomen triangular in shape, its sixth segment about 2 times as broad as long, its ultimate segment about 1.2 times as broad as long.Among Sinopotamon, there are only 3 species, S. shensiense, S. henanense and S. unhweien-se, with unequal lobes in its distal segment of the first pleopod. But this new species differs from the above 3 in having an indistinctly apering last segment and truncated distal end of its first pleopod.Sinopotamon bilobatum sp. nov. (PI. 1:2, fig. 2)Holotype ♂, allotype ♀ (JX8288081), Wanzai County. (28.1N, 114,4E), Jiangxi Province, September, 1982; paratypes, 6♂♂ (1 juv.) 2♀♀ (1 juv.), Wanzai County, Jiangxi Province, November 1986; 2♂♂ (2 juv.), 2♀♀ (2 Juv.), Xiushui County, Jiangxi Province, November 1986; 1♂, Yueyang County, Hunan Province, September 1982.Carapace comparatively flattened. Antero-lateral margin with 12-17 blunt teeth. Male first pleopod not reaching the tubercle of the fourth sternum, its penultimate segment about 3 times as long as the last segment which being bent innerwards about 90 degrees. Male abdomen .triangular in shape, its sixth segment about 2.4 times and the ultimate segment about 1.4 times as broad as long.Similar to S. shensiense (Rathbun 1904) but can be distinguished from the latter by its an-tero-lateral teeth being much closed; its last segment of male first pleopod being not much curved and with its dorsal lobe

关 键 词：十足目 华溪蟹科 华溪蟹属 新种 

分 类 号：Q959.223.6[生物学—动物学]