Two new species of Promonhystera Wieser, 1956 (Nematoda: Monhysterida: Xyalidae) from the South China Sea
Author
Huang, Mian
0000-0003-3343-1520
College of Life Sciences, Liaocheng University, Liaocheng 252059, China. & Laboratory of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
huangmian@lcu.edu.cn
Author
Xu, Kuidong
Laboratory of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China & Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China & University of Chinese Academy of Sciences, Beijing 100039, China
text
Zootaxa
2024
2024-01-11
5399
2
130
140
http://dx.doi.org/10.11646/zootaxa.5399.2.2
journal article
284899
10.11646/zootaxa.5399.2.2
3c95d96e-84b7-4bf4-93fc-0c78b52a5728
1175-5326
10494007
8ACF97BC-35FA-4F59-9C61-5961A37D75A5
TABLE 1. Individual measurements of two new Promonhystera species (in µm, except a, b, c, c′ and a.b.d). Abbreviations are as follows: 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.b.d.: corresponding body diameter; c′: ratio of tail length to cloacal or anal body diameter; sp/a.b.d.: ratio of spicule length to cloacal body diameter. | | P. papilla | | P. fluctispicula | |
|---|
| Characters | Holotype | | Paratypes | | Holotype | Paratypes |
|---|
| M1 | M2 | M3 | J1 | M1 | M2 | M3 |
|---|
| Total body length | 2247 | 2196 | 2240 | 2145 | 1293 | 1185 | 1222 |
|---|
| a | 39 | 37.2 | 37.3 | 37.6 | 38 | 38.2 | 38.1 |
|---|
| b | 6.4 | 6.3 | 5.9 | 6.1 | 5.2 | 4.85 | 4.88 |
|---|
| c | 9.4 | 9.5 | 8.8 | 9.4 | 8.7 | 7.7 | 8.3 |
|---|
| c' | 5.6 | 6.2 | 6.3 | 6.2 | 6.1 | 5.7 | 5.9 |
|---|
| Maximum body diameter | 57 | 59 | 60 | 57 | 34 | 31 | 32 |
|---|
| Head diameter | 28 | 28 | 29 | 28 | 19 | 23 | 20 |
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| Length of inner labial setae | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
|---|
| Length of cephalic setae | 19 | 19 | 20 | 19 | 15 | 13 | 15 |
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| Amphideal fovea as % of c.b.d. | 45 | 45 | 42 | 43 | 50 | 46 | 48 |
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| Amphids from anterior end | 16 | 16 | 16 | 18 | 11 | 11 | 11 |
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| Pharynx length | 350 | 350 | 375 | 350 | 244 | 244 | 250 |
|---|
| Body diameter at pharyngeal base | 49 | 50 | 55 | 50 | 28 | 30 | 28 |
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| Length of spicules | 176 | 170 | 181 | - | 83 | 95 | 88 |
|---|
| sp/a.b.d. | 4.1 | 4.6 | 4.5 | - | 3.5 | 3.5 | 3.5 |
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| Number of precloacal supplements | 3 | 3 | 3 | - | - | - | - |
|---|
| Cloacal or anal body diameter | 43 | 37 | 40 | 37 | 24 | 27 | 25 |
|---|
| Tail length | 239 | 229 | 254 | 229 | 147 | 153 | 147 |
|---|