A NEW SPECIES OF CARIDINA(CRUSTACEA,DECAPODA)FROM HUBEI,CHINA

Abstract:

In the present paper a new species of Caridina is described. The speci-mens were collected from Hubei in 1989. Caridina hubeiensis sp. nov. Rostrum reaches beyond extremity of second segment of antennalar peduncle, itsdorsal border bears 14-20 teeth, 2-4 of which are situated on the carapace behind orbit;its ventral border bears 2-4 teeth. The posterior margin of the telson is rounded and ends a short median tooth. Thereare 3 pairs intermediate spines, which are shorter than the lateral spines. Carpus of the 1st leg is 1.4-1.5 times as long as wide, and the chela is 1.8-2.0times as long as wide. Carpus of the 2nd leg is 4.9-5.0 times as long as wide, and thechela is 2.4-2.5 times as long as wide. Endopod of the 1st male pleopod is leaf-shaped. The appendix interna is bend,and folds at the extremity portion of the endopod. Comparison The present new species closely allied to Caridina baojingensis, butdiffers from the latter in the following feature: 1. The rostrum is longer and bearsteeth in the dorsal and ventral borders. 2. The telson bears 3 pairs intermediatespines. 3. The chelae of the 1st and 2nd legs are shorter and coarser. 4. Carpus of the1st and 2nd legs is shorter.