Two new species of Xyalidae Chitwood, 1951 (Nematoda, Monhysterida) from Chinese Sea Area

被引：3
作者：
Li, Ting [1 ]
Ban, Shuyan [1 ]
Huang, Yong [1 ]
机构：
[1] Liaocheng Univ, Coll Life Sci, Liaocheng 252059, Peoples R China
来源：
ZOOTAXA | 2023年 / 5369卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Daptonema sinica sp. nov; Metadesmolaimus bulbosus sp. nov; biodiversity; free-living marine nematode; taxonomy; YELLOW SEA; GENUS; METADESMOLAIMUS; FILIPJEV; BAY;
D O I：
10.11646/zootaxa.5369.2.5
中图分类号：
Q95 [动物学];
学科分类号：
071002 ;
摘要：
Two new nematode species of the family Xyalidae were found in the intertidal zone of the Chinese coast, and they are described here as Daptonema sinica sp. nov. and Metadesmolaimus bulbosus sp. nov. Daptonema sinica sp. nov. is characterised by a relatively large body with a broad funnel-shaped buccal cavity; relatively long cephalic setae; a circular amphidial fovea posterior to the buccal cavity; slender spicules bending into a hook shape in the posterior half; a small plate-like gubernaculum without apophysis; and a conico-cylindrical slender tail with terminal setae. Metadesmolaimus bulbosus sp. nov. can be identified by its large buccal cavity, long cervical setae, multiple bulb-like pharyngeal muscular swellings, conico-cylindrical tail narrowing abruptly immediately posterior to the cloaca, straight clavated spicules with a broad proximal end and hooked distal end, and gubernaculum absent. An updated dichotomous key to the species of Metadesmolaimus is given.
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页码：255 / 268
页数：14
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