Table 3. Measurements (in μm) and pt of selected morphological structures of individuals of Macrobiotus azzunae sp. nov. mounted in Faure-Berlese. Abbreviations: Nr = number of specimens/structures measured; Range = smallest–largest value; SD = standard deviation. * Three animals below 200 μm in length were not considered in the analysis. Two were not measurable, while data of the only measurable animal below 200 μm is available in the supplementary material (Supp. file 1).
Character Nr Range µm Mean ± SD Holotype µm
Body length 10 * 246.0–410.3 374.0
Buccal tube length 13 29.4–38.5 36.6
pt µm pt
Buccal tube external width 13 11.6–15.9 13.3 ± 1.2 5.8 15.9
Stylet support insertion point 13 75.1–80.5 76.7 ± 1.5 27.9 76.1
Placoid row 13 50.1–57.7 51.8 ± 2.4 18.9 51.5
Macroplacoid row 13 37.7–48.7 44.6 ± 3.1 15.7 42.7
First macroplacoid 13 24.3–29.7 26.6 ± 2.2 9.3 25.5
Second macroplacoid 13 16.0–20.7 18.3 ± 1.5 6.6 18.1
Microplacoid 13 5.9–8.6 6.9 ± 1.0 2.6 7.0
External Claws III main branch 13 27.1–31.3 29.8 ± 1.3 11.5 31.3
External Claws III secondary branch 13 20.1–25.8 22.5 ± 1.6 8.1 22.1
Internal Claws III main branch 13 24.9–30.2 27.7 ± 1.6 10.2 27.9
Internal Claws III secondary branch 13 18.8–24.2 21.4 ± 1.7 7.2 19.7
Posterior Claws IV main branch 9 29.1–34.6 32.7 ± 1.8 12.2 33.2
Posterior Claws IV secondary branch 9 21.6–24.9 23.8 ± 1.6 9.1 24.9
Anterior Claws IV main branch 10 28.2–32.5 30.1 ± 1.9 11.1 30.3
Anterior Claws IV secondary branch 10 20.4–26.2 23.2 ± 1. 7 8.8 24.0