Table 7.
Measurements [in µm] and pt values of selected morphological structures of individuals of Paramacrobiotus fairbanksi Schill, Förster, Dandekar & Wolf 2010 Mongolian population mounted in Hoyer’s medium (N—number of specimens/structures measured; RANGE refers to the smallest and the largest structure among all measured specimens; SD—standard deviation, pt—ratio of the length of a given structure to the length of the buccal tube expressed as a percentage).
| CHARACTER | N | RANGE | MEAN | SD | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| µm | pt | µm | pt | µm | pt | ||||||
| Body length | 14 | 553 | – | 864 | – | 717 | 104 | ||||
| Buccopharyngeal tube | |||||||||||
| Buccal tube length | 14 | 53.7 | – | 67.6 | – | 61.5 | – | 3.6 | – | ||
| Stylet support insertion point | 13 | 40.7 | – | 51.2 | 73.4 | – | 78.8 | 46.9 | 76.9 | 2.8 | 1.4 |
| Buccal tube external width | 14 | 12.3 | – | 18.1 | 20.1 | – | 26.8 | 13.7 | 22.2 | 1.6 | 1.9 |
| Buccal tube internal width | 14 | 9.0 | – | 14.8 | 14.3 | – | 21.9 | 10.5 | 17.0 | 1.4 | 1.7 |
| Ventral lamina length | 11 | 36.0 | – | 43.1 | 60.0 | – | 65.8 | 39.0 | 62.9 | 2.2 | 1.8 |
| Placoid lengths | |||||||||||
| Macroplacoid 1 | 14 | 10.4 | – | 13.1 | 16.2 | – | 21.8 | 11.4 | 18.6 | 0.9 | 1.5 |
| Macroplacoid 2 | 14 | 8.7 | – | 11.2 | 14.1 | – | 18.8 | 10.0 | 16.3 | 0.8 | 1.4 |
| Macroplacoid 3 | 14 | 11.0 | – | 15.0 | 17.5 | – | 25.0 | 12.7 | 20.8 | 1.1 | 1.8 |
| Microplacoid | 14 | 4.6 | – | 7.1 | 6.8 | – | 10.9 | 5.6 | 9.1 | 0.7 | 1.0 |
| Macroplacoid row | 14 | 33.2 | – | 41.4 | 56.6 | – | 64.9 | 37.0 | 60.2 | 2.0 | 2.5 |
| Placoid row | 14 | 43.9 | – | 54.8 | 74.1 | – | 84.6 | 49.4 | 80.5 | 2.6 | 3.1 |
| Claw 1 heights | |||||||||||
| External primary branch | 14 | 15.1 | – | 18.1 | 23.7 | – | 30.1 | 16.8 | 27.3 | 1.0 | 1.9 |
| External secondary branch | 14 | 11.7 | – | 15.2 | 18.7 | – | 24.3 | 13.6 | 22.2 | 1.1 | 1.9 |
| Internal primary branch | 14 | 14.8 | – | 18.2 | 23.6 | – | 29.9 | 16.5 | 27.0 | 1.1 | 2.2 |
| Internal secondary branch | 14 | 11.6 | – | 15.1 | 18.7 | – | 24.4 | 13.1 | 21.3 | 1.0 | 1.9 |
| Claw 2 heights | |||||||||||
| External primary branch | 14 | 16.2 | – | 21.0 | 26.2 | – | 35.1 | 18.0 | 29.4 | 1.3 | 2.5 |
| External secondary branch | 14 | 12.6 | – | 16.9 | 19.7 | – | 28.2 | 14.6 | 23.8 | 1.3 | 2.2 |
| Internal primary branch | 14 | 13.0 | – | 19.6 | 20.9 | – | 32.0 | 15.9 | 25.9 | 2.1 | 3.0 |
| Internal secondary branch | 14 | 9.6 | – | 15.0 | 15.5 | – | 24.6 | 13.0 | 21.2 | 1.7 | 2.3 |
| Claw 3 heights | |||||||||||
| External primary branch | 14 | 13.6 | – | 19.6 | 21.8 | – | 31.5 | 17.2 | 28.0 | 1.6 | 2.8 |
| External secondary branch | 14 | 10.7 | – | 16.4 | 18.5 | – | 25.2 | 13.4 | 21.7 | 1.7 | 2.3 |
| Internal primary branch | 14 | 13.6 | – | 18.0 | 21.8 | – | 30.8 | 16.5 | 26.8 | 1.4 | 2.2 |
| Internal secondary branch | 14 | 11.1 | – | 16.4 | 17.9 | – | 25.1 | 13.4 | 21.8 | 1.6 | 2.3 |
| Claw 4 heights | |||||||||||
| Anterior primary branch | 14 | 15.6 | – | 21.9 | 26.4 | – | 35.1 | 18.6 | 30.3 | 1.7 | 2.6 |
| Anterior secondary branch | 14 | 10.7 | – | 17.1 | 16.7 | – | 26.4 | 14.3 | 23.3 | 1.7 | 2.8 |
| Posterior primary branch | 14 | 14.5 | – | 22.8 | 23.6 | – | 34.5 | 18.5 | 30.1 | 2.0 | 2.9 |
| Posterior secondary branch | 14 | 11.0 | – | 17.5 | 18.5 | – | 28.5 | 14.2 | 23.1 | 2.2 | 3.3 |
pt values are in italics.