Thacker Dimple, Myers Alan A, Trivedi Jigneshkumar N
Department of Life sciences; Hemchandracharya North Gujarat University; Patan- 384265; Gujarat; India.
School of Biological; Earth and Environmental Sciences; University College Cork; Cork Enterprise Centre; Distillery Fields; North Mall; Cork; Ireland.
Zootaxa. 2024 Jul 2;5474(5):563-583. doi: 10.11646/zootaxa.5474.5.7.
The present study was based on amphipod specimens collected from the coastal areas of Gujarat state, India. From the collection, four species belonging to the family Maeridae Krapp-Schickel, 2008 were identified. Two species, Ceradomaera plumosa Ledoyer, 1973 and Ceradocus (Denticeradocus) alama Myers & Nithyanandan, 2016 are reported for the first time from Gujarat state and India, respectively. Two more species, Maera gujaratensis sp. nov. and Quadrimaera okha sp. nov. are described as new species. Maera gujaratensis sp. nov. can be differentiated from its closely related congener M. hirondellei Chevreux, 1900 on the basis of shape of male gnathopod 1 coxa and number of setae present on the telson. Quadrimaera okha sp. nov. can be differentiated from its closely related congeners Q. brownorum Hughes, 2015 and Q. caliban (Ruffo, Krapp & Gable, 2000) by the non-lobate anterodistal corner of gnathopod 2 basis, by the shape of the propodus of the male gnathopod 2, and in having a comparatively smaller uropod 3 peduncle to rami ratio.
本研究基于从印度古吉拉特邦沿海地区采集的端足目动物标本。从这些标本中，鉴定出了属于Maeridae Krapp-Schickel科（2008年）的4个物种。其中，Ceradomaera plumosa Ledoyer（1973年）和Ceradocus (Denticeradocus) alama Myers & Nithyanandan（2016年）分别首次在古吉拉特邦和印度被报道。另外两个物种，即新物种Maera gujaratensis sp. nov.和Quadrimaera okha sp. nov.也被描述。新物种Maera gujaratensis sp. nov.可根据雄性第1颚足基节的形状和尾节上刚毛的数量，与其近缘同属物种M. hirondellei Chevreux（1900年）相区分。新物种Quadrimaera okha sp. nov.可通过第2颚足基部非叶状的前远端角、雄性第2颚足腕节的形状，以及第3尾肢柄节与分肢的比例相对较小，与其近缘同属物种Q. brownorum Hughes（2015年）和Q. caliban (Ruffo, Krapp & Gable, 2000)相区分。
