Two new species of Leptolaimus (Nematoda: Plectida) from Chinese sea area
Author
Gu, Huimin
0009-0008-5820-4678
College of Life Sciences, Liaocheng University, Liaocheng 252059, P. R. China
Author
Sun, Lingyun
0009-0005-3553-3645
College of Life Sciences, Liaocheng University, Liaocheng 252059, P. R. China
981779432@qq.com
Author
Huang, Yong
College of Life Sciences, Liaocheng University, Liaocheng 252059, P. R. China
text
Zootaxa
2024
2024-09-12
5507
2
384
394
http://dx.doi.org/10.11646/zootaxa.5507.2.9
journal article
303367
10.11646/zootaxa.5507.2.9
d2a691df-db6c-477d-9ee5-7f73b32c736e
1175-5326
13757765
732EF0D1-7CDA-4366-B164-156D4E2E8E7F
TABLE 1. Individual measurements of Leptolaimus gracilis sp. nov. and L. hamatus sp. nov. (in µm except a, b, c, c′ and V%) a, ratio of body length to maximum body diameter; b, ratio of body length to pharynx length; c, ratio of body length to tail length; c′, ratio of tail length to cloacal or anus body diameter; V%, position of vulva from anterior end expressed as a percentage of total body length; -, no data. | Leptolaimus gracilis sp. nov. | Leptolaimus hamatus sp. nov. |
|---|
| ♂1 | ♂2 | ♂3 | ♀1 | ♂1 | ♂2 | ♂3 | ♀1 | ♀2 |
|---|
| Total body length | 980 | 978 | 1001 | 936 | 690 | 642 | 624 | 700 | 682 |
|---|
| Maximum body diameter | 14.7 | 12.8 | 13.3 | 14.5 | 20 | 21 | 19.5 | 24 | 20 |
|---|
| Head diameter | 5 | 4.5 | 4.5 | 4 | 5 | 4.5 | 4 | 4 | 4 |
|---|
| Length of cephalic setae | 6 | 5 | 6 | 6 | 2.5 | 2 | 2 | 3 | 2.5 |
|---|
| Length of buccal cavity | 21 | 22 | 20 | 19 | 24 | - | 18 | 18 | 16 |
|---|
| Diameter of amphidial fovea | 4.5 | 3.5 | 4 | 4 | 4 | 4 | 3.5 | 3 | 3 |
|---|
| Body diameter at amphidial fovea | 8 | 7.5 | 7.5 | 7.5 | 8 | 8 | 8 | 8 | 8 |
|---|
| Amphidial fovea from anterior end | 14 | 14 | 15 | 11 | 13 | 12 | 12.5 | 13 | 12 |
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| Length of pharynx | 137 | 143 | 150 | 128 | 136 | 145 | 128 | 139 | 134 |
|---|
| Body diameter at pharyngeal base | 13 | 13 | 12 | 13 | 18 | 19 | 18.5 | 21 | 19 |
|---|
| Length of cardia | 6.5 | 7 | 10 | 7 | 8 | 9 | 7 | 9 | 8.5 |
|---|
| Spicules length along arc | 18 | 18 | 18 | - | 22 | 22 | 24 | - | - |
|---|
| Length of gubernaculum | 12 | 13 | 11 | - | 8 | 9 | 11 | - | - |
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| Number of precloacal supplements | 8 | 8 | 8 | - | 6 | 6 | 6 | - | - |
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| Vulva from anterior end | - | - | - | 456 | - | - | - | 334 | 341 |
|---|
| Body diameter at vulva | - | - | - | 14 | - | - | - | 24 | 20 |
|---|
| V% | - | - | - | 49 | - | - | - | 48 | 50 |
|---|
| Body diameter at cloaca or anus | 14.4 | 12.5 | 12.5 | 9.5 | 17 | 18 | 17 | 15 | 14 |
|---|
| Tail length | 105 | 111 | 84 | 116 | 110 | 102 | 101 | 118 | 106 |
|---|
| a | 66.7 | 76.4 | 75.2 | 64.6 | 34.5 | 30.6 | 33.1 | 29.2 | 34.1 |
|---|
| b | 7.1 | 6.9 | 6.7 | 7.3 | 5.1 | 4.4 | 5.0 | 5.0 | 5.1 |
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| c | 9.3 | 8.8 | 11.9 | 8.0 | 6.3 | 6.3 | 6.4 | 5.9 | 6.4 |
|---|
| c′ | 7.3 | 8.9 | 6.2 | 12.2 | 6.5 | 5.7 | 5.9 | 7.7 | 7.6 |
|---|