World Database of Nematodes

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Gagarin, V. G. (2021). Two Nematode Species New to Science of Genus Daptonema (Nematoda, Monhysterida) Found in Artificial Reservoirs in Vietnam. Inland Water Biology. 14(3): 247-255.
414770
10.1134/s1995082921030068 [view]
Gagarin, V. G.
2021
Two Nematode Species New to Science of Genus Daptonema (Nematoda, Monhysterida) Found in Artificial Reservoirs in Vietnam
Inland Water Biology
14(3): 247-255
Publication
Available for editors  PDF available [request]
An illustrated description of two nematode species (D. lutosum sp. n. and D. stagnalis sp. n.) of the genus Daptonema Cobb, 1920, found in artificial reservoirs for shrimp farming in Vietnam and new to science, is provided. D. lutosum sp. n. is similar to D. borealis Gagarin, 2020 and D. dihystera Gagarin, Nguyen Vu Thanh, 2005 in the structure of the specular apparatus and body sizes. It differs from D. borealis Gagarin, 2020 in longer outer labial setae, amphidial foveae extending from the anterior body end, shorter spicules, and the posterior uterus present in females. It differs from D. dihystera Gagarin, Nguyen Vu Thanh, 2005 in a shorter pharynx, longer outer labial setae, amphidial fovea extending from the body anterior end, and longer terminal setae at the tail tip. D. stagnalis sp. n. is most similar to D. dihystera and D. lutosum sp. n. in the structure of the spicule apparatus and body size. It differs from both species in a thicker body, a thicker tail, and the lack of a posterior uterus in females. A table of the main morphometric traits of males of the valid species identified to the swalbardensis species group of the genus Daptonema is given.
Asia
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Date
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2021-10-23 11:23:54Z
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2022-12-02 15:11:23Z
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Daptonema lutosum Gagarin, 2021 (original description)
Daptonema stagnalis Gagarin, 2021 (original description)
Holotype VNMN ND 1.2.5., geounit Vietnam, identified as Daptonema lutosum Gagarin, 2021
Holotype VNMN ND 3.2.2, geounit Vietnam, identified as Daptonema stagnalis Gagarin, 2021

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