World Database of Nematodes

Liang, H.; Guo, W.; Wang, C. (2024). Two new species of Hypodontolaiminae (Nematoda, Chromadorida, Chromadoridae) from the Yellow Sea with a phylogenetic analysis in the subfamily. ZooKeys. 1190: 281-302.

481059

10.3897/zookeys.1190.113418 [view]

Liang, H.; Guo, W.; Wang, C.

2024

1190: 281-302

Publication

Available for editors   [request]

Two new species of Hypodontolaiminae, Dichromadora media sp. nov. and Neochromadora parabilineata sp. nov., were isolated and described from the Yellow Sea, China. Dichromadora media sp. nov. is characterized by four long cephalic setae, the amphidial fovea transverse oval in the male and slit-shaped in the female, the pharynx with a single posterior bulb, spicules curved and distally bifurcated, gubernaculum jointed, four (1+3) precloacal supplements papilliform, and the tail conical elongated with a short spinneret. Neochromadora parabilineata sp. nov. is characterized by the buccal cavity with one large hollow dorsal tooth and two small subventral teeth, the pharynx with an obvious posterior bulb, spicules L-shaped and widened medially, gubernaculum boatshaped, seven cup-shaped and equidistant precloacal supplements, and a long and gradually tapering tail. The phylogenetic analysis of maximum likelihood and Bayesian inference based on rDNA sequences confirmed the taxonomic positions of Neochromadora parabilineata sp. nov. and Dichromadora media sp. nov. within Hypodontolaiminae. Tree topology in Hypodontolaiminae shows the genera Neochromadora, Dichromadora, Ptycholaimellus, and Spilophorella as polyphyletic groups, and the genus Chromadorita as a paraphyletic group.

RIS (EndNote, Reference Manager, ProCite, RefWorks)
BibTex (BibDesk, LaTeX)

[Back to search]