Narayanan S Prasanth, Jose Divya, C Bijoy, Kurien Vijo Thomas, Thomas A P
Advanced Centre of Environmental Studies and Sustainable Development; Mahatma Gandhi University; Priyadarsini Hills; Kottayam- 686560; Kerala; India.
Department of Zoology; Christ College (Autonomous); Affiliated with University of Calicut; Irinjalakuda; Thrissur-680 125; Kerala; India.
Zootaxa. 2024 Nov 28;5541(4):563-581. doi: 10.11646/zootaxa.5541.4.8.
Three new earthworm species of the genus Drawida Michaelsen, 1900, namely D. jatinderi Narayanan, sp. nov., D. paliwali Narayanan, sp. nov. and D. proboscidea Narayanan, sp. nov., are described from materials collected from the Kerala state of south-western India. D. jatinderi Narayanan, sp. nov., belongs to D. travancorensis Michaelsen, 1910 species group, characterized by spermathecal pores at C setal line, male pores at mid bc setal lines, glandular prostate, spermathecal atrium present, dorsal pores, and genital markings absent. Whereas D. paliwali Narayanan, sp. nov., and D. proboscidea Narayanan, sp. nov. belong to the D. robusta robusta (Bourne, 1886) group, characterized by glandular prostates and bilobed spermathecal atria. D. jatinderi Narayanan, sp. nov., and D. proboscidea Narayanan, sp. nov. were collected from the midlands of Ernakulam district, and D. paliwali Narayanan, sp. nov., was collected from the higher altitude evergreen forest of the Parambikulam Tiger Reserve of Palakkad district. Here we provide a detailed description of the external and internal characteristics of the new species, along with illustrations of the key characters. With the new findings, a total of 52 Drawida species are known from the Western Ghats biodiversity hotspot.
本文描述了采自印度西南部喀拉拉邦的3种新的链胃蚓属(Drawida Michaelsen,1900)蚯蚓,分别为贾廷德链胃蚓(Drawida jatinderi Narayanan,新种)、帕利瓦利链胃蚓(Drawida paliwali Narayanan,新种)和长吻链胃蚓(Drawida proboscidea Narayanan,新种)。贾廷德链胃蚓属于1910年发现的特拉凡哥尔链胃蚓(Drawida travancorensis Michaelsen)物种组,其特征为受精囊孔位于C刚毛线处,雄孔位于bc刚毛线中部,前列腺有腺,有受精囊腔,有背孔,无生殖斑纹。而帕利瓦利链胃蚓和长吻链胃蚓属于粗壮链胃蚓(Drawida robusta robusta (Bourne, 1886))物种组,其特征为前列腺有腺,受精囊腔分两叶。贾廷德链胃蚓和长吻链胃蚓采自埃纳库勒姆区中部,帕利瓦利链胃蚓采自帕拉卡德区帕兰比库拉姆老虎保护区海拔较高的常绿森林。本文详细描述了新物种的外部和内部特征,并配有关键特征的插图。基于这些新发现,西高止山脉生物多样性热点地区共已知52种链胃蚓属物种。