摘要
关公蟹属Dorippe系Weber于1795年建立的。Serène and Romimohtarto,1969年主要根据雄性第1腹肢构造的不同,将原关公蟹属分为三属四亚属,即Dorippe(Dorippe),Dorippe(Dorippoides),Neodorippe(Neodorippe),Neodorippe(Nebilum)和Paradorippe。在这些属中,关公蟹属和亚属在印度西太平洋区仅记述过一种,即Dorippe(Dorippe)frascone(Herbst)。历年来,我所在全国沿海进行采集和全国海洋综合调查中获得了一些关公蟹标本,其中有两个新种,特报道如下。
While studying the crab fauna of the South China Sea,the writer found two new species of the genus Dorippe(Dorippe),the descriptions of which are given below.Type specimens of these two new species are deposited in the Institute of Ocea-nology,Academia Sinica,Qingdao,China.Dorippe(Dorippe)sinica sp.nov.(Pl.Ⅰ,fig.1)Holotype 1♂(000117),Nanao Island,Guangdong Province,1954,Ⅲ.8.Allotype 1♂(K117 B-2).21°N,112°E,depth 48m,bottom muddy sand 1960,Ⅱ.5.Paratype 1♂,1♀(C00115),Shanwei,Guangdong Province,1955,Ⅰ.15.Large species.Body thickly covered with brown hairs(excepting manus and fingers of chelipeds,two terminal segments of first and second ambulatory legs).Carapace broader than long,dorsal face uneven and wrinkled,with very well defined regions and with about seventeen tubercles which are covered with granules.Front small,with two triangular teeth.Outer orbital tooth long,acute and projected beyond frontal teeth.Infraorbital tooth large,curved and with 4-6 teeth along its outer lateral border and slightly projected beyond outer orbital tooth.Teeth present along the anterolateral border of carapace of young male,but absent in the full-grown male;in the female,present in both young and adult.Chelipeds of the adult male asymmetrical or symmetrical.Surface of ischium,merus and carpus covered with small,more or less pointed,tubercles.Palm smooth,if asymmetrical much swollen.Fingers with blunt teeth along its inner border.Second ambulatory leg longest,about 2.6 times as long as carapace.First ambulatory leg shorter than the second but longer than the rest.Posterior two pairs of ambulatory legs short and slender,located on the dorsal face.Palm short,base of posterior border with a blunt tubercle.Finger short,hooked.Abdomen of seven segments in both sexes:in the male,the second and third segments each with a transverse row of three small blunt or acute teeth:fourth segment with only a single median tooth.Male 1st pleopod strong,with some setae,tapering toward its extremity.Extremity of chitinous process projecting laterally.Each of third to fifth abdominal segments of female with a transversely denticulated ridge,the median tooth of third to fourth segments conical,the other teeth small and acute,the outer one longest.Dorippe(Dorippe)tenuipes sp.nov.(Pl.Ⅱ:3,5,7,8,fig.2)Holotype 1♂(L46B-28),20°N.113°30’E,depth 76 m,bottom sand mud,1959,Ⅳ.12.Allotype 1♀(K89B-62),20°30’N,113°E,depth 92m,bottom muddy sand,1959,X.20.Paratype 4♂,2♀(K81B-39),21°15’N,113°30’E,depth 52m,bottom sand,1959,X.1εThis species closely resembles Dorippe(Dorippe)sinica sp.nov.,but differs from the latter in being smaller in size.Dorsal face of carapace without wrinkles,its nodules small but distinct.Cardiac-intestinal region armed with a Y-shaped granular ridge.Anterolateral border toothed.Chelipeds of the adult male(53 specimens)symmetrical.Surface of merus covered with small granules.Pereiopods slender,anterior two pairs not hairy.Second pair 6 times as long as broad.Second and third male abdominal segments with a transverse row of three indistinet granular tubercules.Telson bluntly triangular.Extremity of chitinous process of 1st male pleopod rather long.These two new species bear some resemblance to Dorippe(Dorippe)frascone(Herbst,1782)(Pl.Ⅱ:1,2,4,6,fig.3),but they may be distinguished from each other by the characters as shown in below.
作者
陈惠莲
Chen Huilian(Institute of Oceanology,Academia Sinica)
出处
《海洋与湖沼》
1980年第2期154-160,192-193,共9页
Oceanologia Et Limnologia Sinica
