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Journals
Journal of Nematology
Volume 52 (2020): Issue 1 (January 2020)
Open Access
Amphimermis enzoni
n. sp. (Nematoda: Mermithidae) parasitizing damselflies and dragonflies in Argentina
José Matias Rusconi
José Matias Rusconi
,
Cristian Di Battista
Cristian Di Battista
,
Darío Balcazar
Darío Balcazar
,
Matías Rosales
Matías Rosales
and
María Fernanda Achinelly
María Fernanda Achinelly
| May 18, 2020
Journal of Nematology
Volume 52 (2020): Issue 1 (January 2020)
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Published Online:
May 18, 2020
Page range:
1 - 9
Received:
Mar 10, 2020
DOI:
https://doi.org/10.21307/jofnem-2020-051
Keywords
Argentina
,
Mermithida
,
Odonata
,
Parasitism
,
Stream
© 2020 José Matias Rusconi et al., published by Sciendo.
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Figure 1:
A. Nematode inside I. fluviatilis. (arrowhead) B. Post-parasitic juvenile (J4) emerging from R. bonaerensis. Scale bars: 1 mm.
Figure 2:
Female (A-C). A. Head. B. Vulva (arrowhead). C. Tail. Post-parasitic juvenile (D, E). D. Head. E. Tail with appendage (arrowhead). Scale bars: 50 µm.
Figure 3:
Male (A-F). A. Head showing cephalic papillae (arrowheads) and amphids (arrows). B. Tail showing the spicule. C. Proximal part of the spicule (white arrowheads showing the beginning of the spicule and black arrowhead showing a section of the proximal twisted part). D. Untwisted part of the spicule. E. Distal twisted part of the spicule (arrowhead). F. Tip of the spicule (arrowhead). Scale bars: 50 µm (A-F), 200 µm (B).
Figure 4:
Male tail (A, B). A. First papilla separated from the rest (arrow) of the cephalic papillae. B. Cloaca (arrow). Female (C, D). C. Vulva. D. Tail.
Figure 5:
Male (A-D). A. Schematic arrangement of genital papillae. B. Tail, ventral view showing arrangement of genital papillae. C. Scheme of the spicule: 1 (proximal twisted part), 2 (untwisted part), 3 (distal twisted part), 4 (tip). D. Cross section, mid-body. d, dorsal chord; l, lateral chord; sv, subventral chord; v, ventral chord. Scale bars: 50 µm (A-C), 9 µm (D).
Figure 6:
Phylogeny of the Mermithidae family based on 18S rDNA data including the new species, Amphimermis enzoni. The tree topology is inferred by Bayesian inference (BI) and maximum likelihood (ML). Posterior probability and ultrafast bootstrap values are reported as BI/ML. Only node consistencies above 50% are shown. The tree is drawn to scale, with branch lengths in the same proportions as the evolutionary distances used to infer the phylogenetic tree.