Two New Free-Living Marine Nematode Species of the Genus Anoplostoma(Anoplostomatidae) from the Mangrove Habitats of Xiamen Bay,East China Sea  

作　　者：LI Yongxiang GUO Yuqing 

机构地区：[1]Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-Environment,Fisheries College,Jimei University

出　　处：《Journal of Ocean University of China》2016年第1期11-18,共8页中国海洋大学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (No.41176107);Open Research Fund Program of Provincial Key Laboratory of Marine Fishery Resources and Eco-environment of Fujian (No.fmfre2014012);the Training Program of Fujian Excellent Talents in University

摘　　要：Two new species of free-living marine nematode from mangrove habitats in Xiamen Bay are identified.Anoplostoma tumidum sp.nov.is characterized by relatively short outer labial setae(0.86–1.00 h.d.),long tail(c 7.2–8.9,c' 8.3–10.5),an instinct swollen distal portion of slender spicule(Sc 94–101 μm),and well developed copulatory bursae without bursal papillae.A.tumidum sp.nov.differs from all valid species of genus Anoplostoma in copulatory apparatus of males with a distinct swollen distal portion of spicule,and a relatively obvious constriction of head.A.paraviviparum sp.nov.is characterized by relatively long outer labial setae(1.11–1.22 h.d.),and tail(c 6.6–8.5,c' 8.6–10.2);elongated spicules with distinct knob-like proximal and pointed distal ends(Sc 46–69 μm);distinct strip-like gubernaculum(length with 11–15μm);well developed copulatory bursae with precloacal papillae and post-cloacal papillae;and a distinct constriction of head.A.paraviviparum sp.nov.is similar to A.viviparum Bastian,1865,but differs in the reproductive mode of female and the constriction of head.Two new species of free-living marine nematode from mangrove habitats in Xiamen Bay are identified. Anoplostoma tumidum sp. nov. is characterized by relatively short outer labial setae （0.86-1.00 h. d.）, long tail （c 7.2-8.9, c＇ 8.3-10.5）, an instinct swollen distal portion of slender spicule （Sc 94-101 μm）, and well developed copulatory bursae without bursal papillae. A. tumidum sp. nov. differs from all valid species of genus Anoplostoma in copulatory apparatus of males with a distinct swollen distal portion of spicule, and a relatively obvious constriction of head. A. paraviviparum sp. nov. is characterized by relatively long outer labial setae （1.11-1.22 h. d.）, and tail （c 6.6-8.5, c＇ 8.6-10.2）; elongated spicules with distinct knob-like proximal and pointed distal ends （Sc 46-69 μm）; distinct strip-like gubernaculum （length with 11-15μm）; well developed copulatory bursae with precloacal papillae and post-cloacal papillae; and a distinct constriction of head. A. paraviviparum sp. nov. is similar to A. viviparum Bastian, 1865, but differs in the reproductive mode of female and the constriction of head.

关 键 词：free-living marine nematode Anoplostoma MANGROVE new species East China Sea 

分 类 号：Q959[生物学—动物学]