Table 12 Measurements [in μm] of selected morphological structures of individuals of Macrobiotus margoae sp. nov. from the USA (US.057) mounted in Hoyer’s medium (N–number of specimens/structures measured, RANGE refers to the smallest and largest structures among all measured specimens; SD–standard deviation)
CHARACTER | N | RANGE | MEAN | SD | Holotype | ||||
|---|---|---|---|---|---|---|---|---|---|
μm | pt | μm | pt | μm | pt | μm | pt | ||
Body length | 30 | 239 – 443 | 690 – 1220 | 338 | 973 | 47 | 114 | 443 | 1220 |
Buccal tube | |||||||||
Buccal tube length | 30 | 29.4 – 41.9 | – | 34.8 | – | 2.9 | – | 36.3 | – |
Stylet support insertion point | 30 | 23.4 – 32.7 | 76.2 – 79.8 | 27.1 | 77.8 | 2.3 | 1.0 | 28.4 | 78.2 |
Buccal tube external width | 30 | 3.1 – 6.3 | 9.5 – 16.8 | 4.9 | 14.1 | 0.7 | 1.7 | 6.1 | 16.8 |
Buccal tube internal width | 30 | 2.8 – 4.9 | 8.6 – 15.7 | 3.8 | 11.0 | 0.5 | 1.4 | 4.2 | 11.6 |
Ventral lamina length | 30 | 18.4 – 25.2 | 55.0 – 65.8 | 21.6 | 62.0 | 1.9 | 2.7 | 20.7 | 57.0 |
Placoid lengths | |||||||||
Macroplacoid 1 | 30 | 6.3 – 11.8 | 20.0 – 29.9 | 9.0 | 25.8 | 1.2 | 2.2 | 10.1 | 27.8 |
Macroplacoid 2 | 30 | 4.1 – 7.1 | 11.1 – 19.7 | 5.8 | 16.6 | 0.9 | 2.1 | 7.1 | 19.6 |
Microplacoid | 30 | 1.7 – 6.1 | 4.8 – 16.8 | 3.0 | 8.5 | 0.8 | 2.0 | 3.5 | 9.6 |
Macroplacoid row | 30 | 11.7 – 20.3 | 40.0 – 55.9 | 16.0 | 45.9 | 2.0 | 3.4 | 20.3 | 55.9 |
Placoid row | 30 | 16.0 – 24.7 | 52.1 – 68.0 | 19.8 | 56.8 | 2.1 | 3.1 | 24.7 | 68.0 |
Claw 1 heights | |||||||||
External primary branch | 25 | 6.3 – 11.1 | 20.4 – 30.6 | 8.5 | 24.2 | 0.9 | 2.0 | 11.1 | 30.6 |
External secondary branch | 25 | 5.0 – 8.0 | 16.6 – 24.7 | 6.9 | 20.0 | 0.7 | 2.2 | 7.8 | 21.5 |
Internal primary branch | 24 | 6.8 – 9.9 | 18.7 – 27.3 | 8.0 | 22.9 | 0.7 | 1.9 | 9.9 | 27.3 |
Internal secondary branch | 22 | 5.5 – 7.5 | 14.8 – 21.4 | 6.5 | 18.7 | 0.5 | 1.8 | 7.5 | 20.7 |
Claw 2 heights | |||||||||
External primary branch | 24 | 7.7 – 10.4 | 20.3 – 28.6 | 8.9 | 25.5 | 0.7 | 2.0 | 10.1 | 27.8 |
External secondary branch | 18 | 5.9 – 8.1 | 16.5 – 25.2 | 7.1 | 20.1 | 0.7 | 2.4 | 7.6 | 20.9 |
Internal primary branch | 22 | 6.4 – 9.7 | 18.3 – 27.8 | 8.3 | 23.8 | 0.8 | 2.2 | 9.5 | 26.2 |
Internal secondary branch | 20 | 5.4 – 7.7 | 15.3 – 22.2 | 6.7 | 19.3 | 0.6 | 2.1 | 7.5 | 20.7 |
Claw 3 heights | |||||||||
External primary branch | 22 | 7.2 – 10.3 | 21.0 – 27.6 | 8.9 | 25.2 | 0.9 | 2.0 | 10.0 | 27.5 |
External secondary branch | 24 | 5.8 – 8.2 | 16.8 – 23.9 | 7.1 | 20.3 | 0.7 | 2.1 | 7.9 | 21.8 |
Internal primary branch | 23 | 7.1 – 9.4 | 20.0 – 28.0 | 8.3 | 23.6 | 0.7 | 1.9 | 8.2 | 22.6 |
Internal secondary branch | 18 | 5.4 – 8.0 | 14.4 – 22.3 | 6.5 | 18.3 | 0.8 | 2.2 | ? | ? |
Claw 4 heights | |||||||||
Anterior primary branch | 16 | 8.2 – 11.3 | 22.7 – 31.1 | 9.5 | 27.6 | 0.8 | 2.2 | 11.3 | 31.1 |
Anterior secondary branch | 13 | 6.1 – 8.9 | 16.4 – 24.7 | 7.4 | 21.2 | 0.9 | 2.6 | 8.9 | 24.5 |
Posterior primary branch | 14 | 8.4 – 11.5 | 24.5 – 32.6 | 9.9 | 28.8 | 0.8 | 2.6 | 11.5 | 31.7 |
Posterior secondary branch | 18 | 6.4 – 9.0 | 20.1 – 26.7 | 7.6 | 22.0 | 0.8 | 1.7 | ? | ? |