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Issue: Vol. 5507 No. 3: 13 Sept. 2024
Type: Article
Published: 2024-09-13
DOI: 10.11646/zootaxa.5507.3.4
Page range: 456-466
Abstract views: 125
PDF downloaded: 11

Description of two new nematode species: Ingenia major sp. nov. (Tripyloididae) and Linhystera filiformis sp. nov. (Xyalidae) from an intertidal beach of the Yellow China Sea

College of Life Sciences; Liaocheng University; Liaocheng; 252059; P.R. China
College of Life Sciences; Liaocheng University; Liaocheng; 252059; P.R. China
College of Life Sciences; Liaocheng University; Liaocheng; 252059; P.R. China
Nematoda Bathylaimus marine nematode Rizhao Yantai coast

Abstract

Two new free-living nematode species, Ingenia major sp. nov. and Linhystera filiformis sp. nov., are described from the Yellow China Sea. Ingenia major sp. nov. is characterized by a large body size, six outer labial setae articulated, buccal cavity barrel-shaped with three teeth, amphidial fovea small and unispiral, spicules thin and almost straight with a pair of ventro-laterally directed teeth hooked distally, gubernaculum kidney-shaped with triangular cuticularized projection, tail conical and with swollen-terminus. Relationship between Ingenia and Bathylaimus is discussed, and Ingenia communis Gagarin & Thanh, 2007 is transferred as Bathylaimus communis comb. n. based on the buccal cavity shape. Linhystera filiformis sp. nov. is characterized by filiform body, buccal cavity minute and slit-like, six outer labial setae and four cephalic setae in the same circle and with the same length, amphidial fovea relatively small and circular, spicules short and sickle-shaped, gubernaculum boat-shaped, tail filiform with three terminal setae. An identification key for valid species of Linhystera is also given.

 

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