Description of Spinocephalus tessellatus n. gen., n. sp. (Rhabditida, Cephalobidae) from Iran, a nematode with a new morphological pattern at lip region
, e | 01 ott 2021
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Pubblicato online: 01 ott 2021
Pagine: 1 - 16
DOI: https://doi.org/10.21307/jofnem-2021-078
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© 2021 Joaquín Abolafia et al., published by Sciendo.
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
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Morphometrics of Spinocephalus tessellatus n. gen., n. sp
| Sex | Holotype | Paratypes | |
|---|---|---|---|
|
|
Female | 11 females | 6 males |
| L | 575 | 612.4 ± 34.8 (552–668) | 596.0 ± 25.3 (578–645) |
| a | 21.3 | 21.0 ± 0.6 (20.0–22.0) | 24.1 ± 2.5 (20.2–27.9) |
| b | 3.7 | 4.3 ± 0.1 (4.0–4.5) | 3.5 ± 0.2 (3.2-3.8) |
| c | 14.0 | 15.4 ± 1.2 (13.8–17.7) | 14.5 ± 0.6 (13.9–15.7) |
| c' | 2.3 | 2.0 ± 0.1 (1.8–2.3) | 2.0 ± 0.1 (2.0–2.2) |
| V | 62 | 61.2 ± 0.9 (60–63) | – |
| Lip region width | 9 | 5.5 ± 0.4 (5–6) | 5.1 ± 0.4 (5–6) |
| Stoma length | 13 | 12.1 ± 0.4 (11–13) | 11.5 ± 0.5 (11–12) |
| Corpus length | 73 | 70.6 ± 4.3 (63–76) | 88.1 ± 7.1 (81–101) |
| Isthmus length | 46 | 45.2 ± 1.3 (44–48) | 45.3 ± 2.4 (42–49) |
| Bulbus length | 25 | 25.9 ± 1.5 (24–28) | 24.3 ± 0.6 (24–25) |
| Pharynx length | 144 | 141.8 ± 4.7 (134–148) | 157.8 ± 6.9 (150–168) |
| Neck length | 157 | 154.0 ± 4.9 (146–161) | 169.3 ± 7 (162–180) |
| Nerve ring-ant. end | 89 | 98.7 ± 8.9 (85–112) | 100.8 ± 9.1 (86–110) |
| Excretorypore-ant. end | 94 | 104.2 ± 5.6 (94–113) | 100.2 ± 4.5 (95–106) |
| Deirid-ant. end | 117 | 110.0 ± 4.2 (107–113) | 122.0 ± 3.6 (118–125) |
| Cuticle thickness | 3 | 2.6 ± 0.1 (2–3) | 2.2 ± 0.2 (2–3) |
| Annuli width | 4 | 5.1 ± 0.5 (4–6) | 5.0 ± 0.2 (4–5) |
| Body width neck base | 26 | 27.6 ± 1.5 (26–30) | 23.8 ± 1.7 (21–27) |
| Body width mid-body | 27 | 29.0 ± 1.7 (26–32) | 24.9 ± 2.7 (21–29) |
| Lateral field width | 7 | 8.2 ± 0.8 (7–10) | 7.3 ± 0.5 (7–8) |
| Ovary length | 120 | 122.0 ± 20.7 (96–142) | – |
| Oviduct length | 9 | 11.2 ± 2.2 (8–13) | – |
| Spermatheca length | 32 | 31.6 ± 7.1 (23–39) | – |
| Uterus length | 70 | 68.2 ± 16.9 (43–79) | – |
| Vagina length | 9 | 7.6 ± 0.7 (7–9) | – |
| Post-vulval uterinesac | 29 | 25.7 ± 1.4 (23–28) | – |
| Vulva-ant. end | 357 | 375 ± 25.8 (331–418) | – |
| Rectum length | 23 | 19.4 ± 1.9 (17–22) | – |
| Body width anus | 18 | 18.9 ± 1.1 (17-21) | 19.8 ± 0.6 (19–21) |
| Tail length | 41 | 39.8 ± 2.6 (37–44) | 40.9 ± 0.6 (40–42) |
| Phasmid-anus distance | 18 | 22.4 ± 10.4 (17–41) | 19.1 ± 2.4 (18–23) |
| Spicules length | – | – | 24.5 ± 0.8 (24–26) |
| Gubernaculum length | – | – | 12.4 ± 1.1 (11–14) |