Table 2 Morphometric data on Frontonia vernalis, Serchio population (IPSal+b) - Neotype, Italy
| Characters | \( \overline{\mathrm{X}} \) | SD | Min | Max | CV | n |
|---|---|---|---|---|---|---|
| Body, lengtha | 218.3 | 16.4 | 183.0 | 247.0 | 7.51 | 20 |
| Body, widtha | 99.5 | 14.3 | 73.3 | 120.0 | 14.4 | 20 |
| Somatic ciliary rows, ventral side, number | 66.7 | 3.9 | 60 | 72 | 5.8 | 12 |
| Somatic ciliary rows, dorsal side, number | 63.0 | 17.3 | 60 | 73 | 27.5 | 12 |
| Excretory pores, number | 1 | 0 | 1 | 1 | 0 | 15 |
| Macronucleus, lengthb | 75.9 | 8.0 | 62.0 | 85.5 | 10.5 | 18 |
| Macronucleus, widthb | 40.7 | 3.9 | 35.0 | 45.3 | 9.6 | 18 |
| Micronucleus, number | 5.1 | 1.9 | 3 | 9 | 36.6 | 16 |
| Micronucleus size, lengthb | 5.3 | 0.7 | 4.0 | 7.5 | 14.7 | 18 |
| Micronucleus size, widthb | 3.4 | 0.6 | 2.5 | 4.5 | 16.9 | 18 |