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Table 3.
Morphometric variations in maxillary palps and laciniae in Tunga species.
| Species of Tunga | Maxillary palps (MP) |
Laciniae (Lac) |
Preoral internal sclerotization |
||
|---|---|---|---|---|---|
| Measurements (µm) | In decreasing order of length | Measurements (µm) | Ratio Lac/MP | Ratio posterior arm/anterior arm | |
| T. penetrans | I = 71.2; II = 75.0; III = 52.5; IV = 67.5 | II = I = IV > III; II = 1.5 > III | 362.5 | 1.36 | 1.53 |
| T. caecata | I = 45.0; II = 40.0; III = 30.0; IV = 52.5 | IV > I = II > III | 257.5 | 1.53 | 10.00 |
| T. travassosi | I = 69.5; II = 63.9; III = 53.5; IV = 84.9 | IV > I > II > III; IV = 1.5 > III | 336.4 | 1.23 | 2.00 |
| T. terasma | I = 85.0; II = 82.5; III = 60.0; IV = 77.5 | I = II = IV > III; III = 2/3 II | 400.0 | 1.31 | 1.50 |
| T. bondari | I = 55.0; II = 70.0; III = 37.5; IV = 62.5 | II > IV > I > III; II = 2 > III | 455.0 | 2.02 | 2.00 |
| T. caecigena | IV > I = II > III | ~1.0 | 3.00 | ||
| T. callida | IV > I > II > III* | 1.5 | 3.00 | ||
| T. libis | IV > I = II > III; IV = 2 > III | 1.5 | 1.50 | ||
| T. monositus | I = 78.0; II = 40.0; III = 35.0; IV = 81.0 | I = IV > II ≥ III | 330.0 | 1.4 | 2.00 |
| T. trimamillata | I = 110.7; II = 73.8; III = 44.3; IV = 68.9 | I > II = IV > III; I = 2 > III | 403.4 | 1.35 | 3.98 |
| T. bossii | I = 49.2; II = 31.5; III = 30.0; IV = 71.3 | IV > I > II > III | 233.7 | 1.28 | 2.00 |
| T. bonneti | IV > I = II = III | 1.5 | |||
| T. hexalobulata | I = 122.5; II = 92.0; III = 52.0; IV = 74.3 | I > II > IV > III; I = 2 > III | 434.0 | 1.27 | 4.68 |
*
Calculated from the figures included in Liu et al. [36]: Fauna sinica, p. 139, Figure 54.
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