NEW SPECIES AND NEW RECORD OF PALAEMONINAE FROM CHINA (CRUSTACEA DECAPODA)

The present paper deals with 2 new species of the genus Macrobrachium, and a new record, Leandrites deschampsi (Nobili) of the Subfamily Palaemoninae from China. The genus Leandrites is also recorded for the first time from China, The type specimens of the new species are kept in the Shanghai Fisheries College. The diagnosis of the new species is given below. Macrobrachium inflatum sp. nov. (fig. 3)Rostrum extends beyond the extremity of the antennular peduncle, it is rather narrow. The upper margin bears 12-17 teeth, 3-4 of which are situated on the carapace behind orbit. The extremity portion of the rostrum is somewhat curved upwards, a rather small tooth is always placed dose to the apex. The lower margin bears 3-5 teeth.Second legs are equal, and shorter than the body in adult males. Dactylus is as long as palm. Movable finger bears 2 smaller teeth, anterior one of which is situated on the proximal one eight of cutting edge, fixed finger of the proximal bears a very small tooth. Palm is expansive. Carpus is longer than palm, about 0.72 times as long as chela. Merus is shorter than palm. Ischium is longer than merus or palm, about 1.1 times as long as merus.The present new species is closely resembles Macrobrachium superbum (Heller) and Macrobrachium guangxiense Liang et Yan. Dactylus of the second legs of the new species is as long as palm, cutting edge of the movable or fixed finger of the proximal bears teeth at the each side, palm is expansive, and a rather small tooth is always placed close to apex. Those differ from Macrobrachium superbum (Heller). The ischium of the second legs of the new species is longer then the merus or carpus, the rostrum is narrow and longer, and extremity portion is somewhat curved upwards . Those differ from Macrobrachium guangxiense Liang et Yan.Type locality: Kunshan County (31°20′N, 120°58′E), Jiangsu Province.Macrobrachium jiangxiense sp. nov.(fig. 4)Rostrum, reaches beyond the extremity of the antennular peduncle. The upper margin bears 11-15 teeth, 2-4 of which are situated on the carapace behind orbit. The lower margin bears 2-4 teeth.Second legs are equal in both sexes. All joints are covered with small spinules. Cutting edge of movable or fixed finger bears two teeth at each side on the proximal portion. Daetylus is shorter than palm, about 0.63 times as long as carpus. Ischium is longer than merus, about 1.1 times as long as merus.The carpus of the 2nd legs of the present new species is longer than ehela which is closely resembles Macrobrachium idae (Heller) and Macrobrachium idella (Hilg-endort), but differs from the latter two species in the following features. 1. rostrum is longer, and the extremity portion is somewhat curved upwards; 2. the teeth of the lower margin are less; 3. proportion of all joints of the second legs is different.Type locality: Boyang County (29°N, 116°40′E), Jiangxi Province.