TAILIEUCHUNG - First record of Longidorella Xenura and Oriverutus parvus in Cuc Phuong national park, Vietnam
In this paper, two species of Longidorella xenura and Oriverutus parvus in this area were recorded for the first time in Vietnam. Based on high resolution microphotographs, our study allows having better characterization of those species. | TẠP CHÍ SINH HỌC, 2013, 35(2): 133-139 FIRST RECORD OF LONGIDORELLA XENURA AND ORIVERUTUS PARVUS (NEMATODA: NODIIDAE) IN CUC PHUONG NATIONAL PARK, VIETNAM Nguyen Thi Anh Duong1*, Vu Thi Thanh Tam1, Reyes Peña-Santiago2 1 Institute of Ecology and Biological Resources, VAST, *nad2807@ 2 University of Jaén, Spain ABSTRACT: Longidorella xenura and Oriverutus parvus from Cuc Phuong National Park are described and illustrated for the first time in Vietnam. Longidorella xenura species is characterized by its small body mm long; lip region continuous; odontostyle typical of the genus, slightly arched; odontophore linear, rod-like; female genital system didelphic-amphidelphic; tail conical elongated with finely rounded tip. Oriverutus parvus species is characterized by its body mm long; lip region slightly angular, offset by depression or weak constriction; lips moderately amalgamated with protruding papillae but not typically lobe-like; odontostyle moderately robust; odontophore rod-like; female genital system didelphicamphidelphic; tail conical with pointed tip. Keywords: Dorylaimida, Nordiidae, Longidorella xenura, Oriverutus parvus, morphology, Vietnam. INTRODUCTION Nordiidae is poorly known dorylaimid family of free-living nematodes in Vietnam, with only one described species as Actinolaimoides angolensis (Andrássy, 1963) Siddiqi, 1982, which was collected from Cuc Phuong National Park in northern Vietnam by Andrássy (1970). In this paper, two species of Longidorella xenura and Oriverutus parvus in this area were recorded for the first time in Vietnam. Based on high resolution microphotographs, our study allows having better characterization of those species. MATERIALS AND METHODS Soil samples were collected from a pristine tropical forest in Cuc Phuong national park, Vietnam. Nematodes were extracted from soil sample by modified Baermann funnel technique [3], killed by heat, fixed in formaldehyde 4%, transferred to anhydrous glycerol .
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