A new species and a new record of free-living marine nematode of genus Diplolaimelloides(Monhysteridae)from Futian mangrove reservation in Shenzhen,China  

作　　者：Yuzhen CHEN Huilan ZHU Yuqing GUO 

机构地区：[1]Fisheries College,Jimei University,Xiamen 361021,China

出　　处：《Journal of Oceanology and Limnology》2023年第1期314-326,共13页海洋湖沼学报（英文）

基　　金：Supported by the National Natural Science Foundation of China(No.31772416)。

摘　　要：A new species and a new record of free-living marine nematode of genus Diplolaimelloides’(Monhysteridae)inhabiting the sediment of mangrove reservation in Shenzhen,China are described and illustrated.Diplolaimelloides contortus sp.nov.is characterized by the combination of the following characters:ocelli present;four pairs of post-cloacal papillae arranged in(2+2)pattern,two midway on bursa and two near posterior extremities;spicules complicated in shape,twisted and curved at middle portion;gubernaculum wedge-shaped,with distal dorsal ridge well cuticularized,proximal dorsal ridge obscure sleeve-like,proximal end wrap the spicule;vulva located at 52.1%-53.6%of body length;male tail slender,10.0-11.4 times of anal body diameter,and female tail long filiform,13.1-13.6 times of anal body diameter.Diplolaimelloides delyi Andras sy,1958 is first recorded from China and redescribed in detail,it differs from the original description by Andrassy in 1958 for having larger body size of male,shorter tail,and posterior situation of vulva.However,it is much conform to the redescription to specimens from East Pakistan by Timm in 1966,except for shorter tail in female and absent pre-anal seta.Specimens are deposited in the Institute of Oceanology,Chinese Academy of Sciences.

关 键 词：taxonomy Diplolaimelloides contortus sp.nov Diplolaimelloides delyi Andrássy 1958 mangrove nematode China 

分 类 号：Q959[生物学—动物学]