摘要
三强蟹属Genus Tritodynamia隶属于豆蟹科Family Pinnotheridae倒颚蟹亚科Subfamily Asthenognathinae。本属自Ortmann于1894年建立以来,迄今共记载四种:日本三强蟹T.japonica Ortmann,1894,霍氏三强蟹T.horvathi Nobili,1905蓝氏三强蟹T.rathbunae Shen,1932及中型三强蟹T.intermedia Shen,1935。后两种的模式标本采自我国山东省烟台。
So far as known,four species of the Genus Tritodynamia Ortmann have been described.The present species which differs from all the known species in major aspects is considered as new.Tritodynamia fujianensis sp.nov.(PlateⅠ)Carapace transversely ovoid,twice as broad as long.Surface polished,finely pitted.Regions ill-defined.Gastric region with a transverse groove.Front broad,about as wide as the orbit,frontal border truncate,surface with a longitudinal groove.Lateral borders each with a finely granulated raised ridge.Anterolateral bor-der longer than posterolateral border,at the point where the anterolateral and po-sterolateral borders meet,there is an inwardly directed,oblique,slightly raised ridge,which together with the posterolateral border delineates a small,elongate triangular,slightly sloping area of the carapace.Merus of third maxilliped longer than ischium.Palm and dactylus of equal length,with long plumose hairs.Cheliped stout.Merus with a cluster of long hairs at inner and outer borders.Palm short and stout,its outer border much elevated;near the outer border of the outer lateral face is a hairy,longitudinal groove,near its inner border there is a smoothly elevated ridge;middle of inner lateral face also has a hairy,longitudinal groove.Inner borders of its two fingers with some small teeth.The basal half of the inner border of movable finger with two blunt teeth.The basal Portion of the inner border of immovable finger with two relatively big teeth.Second pair of ambulatory legs longest,fourth shortest and smallest.Posterior border of merus of the second pair serrated,with about 43 teeth.Merus of third pair two times as broad as long.Telson of male abdomen bluntly triangular.First abdominal appendage of the male stout,its distal portion bluntly rounded,with plumose hairs.
作者
陈惠莲
Chen Huilian(Institute of Oceanology,Academia Sinica)
出处
《海洋与湖沼》
1979年第4期334-337,共4页
Oceanologia Et Limnologia Sinica
