越南北部淡水虾类(十足目:匙指虾科,长臂虾科)

CARIDEAN PRAWNS OF NORTHERN VIETNAM (DECAPODA:ATYIDAE,PALAEMONIDAE)

报道了采自越南北部的 11种 (亚种 )淡水虾类 ,包括 2个新种、3个新异名和 1个越南新纪录。新种模式标本保存在中国科学院动物研究所。

The morphology of Caridean Prawns of Northern Vietnam was studied based on the material deposited in the Chinese Academy of Sciences and the Beijing and Shanghai Fisheries Universities Shanghai. A detailed description of two new species ( Caridina nguyeni sp. nov. and Caridina caobangensis sp. nov.) and 9 known species/subspecies are given. In addition, the species Caridina flavilineata Dang, 1975 provied to be a junior synonym of Caridina lanceifrons Yu 1936, Caridina acuticaudata Dang, 1975 proved to be a junior synonym of Caridina longirostris H. Milne Edwards, 1837 and Caridine subnilotica Dang, 1975 proved to be a junior synonym of Caridina nilotica macrophora Kemp, 1918. 1\ Macrobrachium nipponense (de Haan, 1849) Palaemon nipponense de Haan, 1849: 171. Macrobrachium nipponense Holthuis 1950: 172. Distribution:China (Guizhou, Hunan); Vietnam (Cao Bang), Japan, Korea.2 Macrobrachium yui Holthuis, 1950 Palaemon brevicarpus heterochirus Yu, 1936: 305, figs. 1 2. Macrobrachium yui Holthuis, 1950: 19; 211. Macrobrachium yeti Dang, 1980: 386,hinh 221.Distribution.China (Yunnan); Vietnam (Ha Giang).3\ Macrobrachium javanicum (Heller, 1862) Palaemon javanicus Heller, 1862: 421, pl. 2: fig. 48. Palaemon (Eupalaemon) neglectus De Man, 1905: 201, pl. 15: fig. 6. Macrobrachium javanicum Holthuis, 1950: 190, fig. 38.Distribution.Vietnam (Ha Giang)4\ Neocaridina palmata (Shen, 1948) Caridina denticulata vietnamensis Dang, 1967: 157. h. 4. Caridina vietnamensis Dang, 1975: 72. Neocaridina palmata Cai et al ., 1999: 531.Distribution.China(Anhui, Chongqing, Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangxi, Sichuan, Zhejiang);Vietnam(Cao Bang, Long Son).5\ Caridina longirostris H. Milne Edwards, 1837 Caridina longirostris H. Milne Edwards, 1837: 363. Caridina acuticaudata Dang, 1975: 70, hinh 4; Dang, 1980: 407,hinh 232; Cai et al ., 1999: 531. (n. syn.) Distribution.China(Fujian, Guangdong, Hainan, Taiwan); Japan, Indonesia, New Scotland, Madagascar, Vietnam.6 Caridina nilotica macrophora Kemp,1918 Caridina nilotica macrophora Kemp, 1918: 277, fig.9. Caridina subnilotica Dang, 1975: 69, hinh 3; Dang, 1980: 405, hinh 231; Cai et al ., 1999: 531. (n.syn.)Distribution:China(Guangxi, Hainan);Thailand,Vietnam.7\ Caridina nilotica gracilipes De Man, 1908 Caridina nilotica gracilipes De Man, 1908: 207; 1918:275.Distribution. China(Anhui, Fujian, Guangdong, Hebei, Hubei, Hunan, Jiangsu, Jiangxi, Shandong, Shanghai, Zhejiang);Vietnam(Chi Ni),Bengal,India,Indonesia, Sri Lanka.8\ Caridina lanceifrons Yu, 1936 Caridina lanceifrons Yu, 1936: 89, figs 4 7; 1938: 281, fig. 3. Caridina flavilineata Dang, 1975: 70, hinh 5; Dang, 1980: 412, hinh 235. Cai et al ., 1999:531. (n. syn.)Distribution. China (Fujian, Guangdong, Guangxi, Hainan, Hunan);Vietnam(Song Tay).9\ Caridina cucphuongensis Dang, 1980 Caridina serrata cucphuongensis Dang, 1980: 404, hinh 230. Caridina cucphuongensis Cai et al ., 1999: 531.Distribution.Vietnam (Song Tay, Cao Bang).10\ Caridina nguyeni sp. nov.\ (Figs. 1 2)The present new species is closely allied to Caridina serratirostris De Man, but differs from the latter in the following features: 1) the stylocerite reaches to the end of the 2nd segment of the antennular peduncle; 2) the spines of the terminal portion of the telson are spine shaped , but set shaped in C. serratirostris ; 3) the dactylus of 1st pereiopod is shorter than the palm, but longer than the palm in C.serratirostris; 4)the spines of the dactylus of 3rd and 5th pereiopods are fewer, but more abundent in C.serratirostris ; 5) 1st male pleopod bears an appendix interna, absent in C.serratirostris .11 Caridina caobangensis sp. nov. (Figs. 3 4)The present new species is closely allied to Caridina cucphuongensis Dang, but differs from the latter in following features: 1) the teeth of the rostrum and diaeresis of the uropod are