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Figure 6 in A geometric morphometric approach to the analysis of the shape variability of the haptoral attachment structures of Ligophorus species (Platyhelminthes: Monogenea)

Figure 6. Combination of the outlines of all dorsal anchors of each analyzed Ligophorus species (other haptoral structures outlines see http://marineparasites.org/morphometry/

Figure 5 in A geometric morphometric approach to the analysis of the shape variability of the haptoral attachment structures of Ligophorus species (Platyhelminthes: Monogenea)

Figure 5. Cluster (A, C) and PC analysis (B, D) of the combinations of four harmonics for each dorsal and ventral anchors, and ventral bar obtained for each Ligophorus specimens. Upper graphs (A, B) are based on the size-invariant EFDs; lower graphs (C, D) – on the size-considered EFDs.

Figure 4 in A geometric morphometric approach to the analysis of the shape variability of the haptoral attachment structures of Ligophorus species (Platyhelminthes: Monogenea)

Figure 4. PCA of the size-invariant (A, C, E) and size-considered (B, D, F) harmonics of the dorsal (А, B) and ventral (C, D) anchors, and the ventral bars (E, F) of Ligophorus species. All graphs are based on fifty harmonics. Keys: dots – dorsal anchors; triangles – ventral anchors; rhombus – ventral bars.

Figure 2. A in A geometric morphometric approach to the analysis of the shape variability of the haptoral attachment structures of Ligophorus species (Platyhelminthes: Monogenea)

Figure 2. A After the automatic normalization, the outlines of anchors still have different orientation of the blades, different positions of the digitization starting point and directions of digitization; this affects the signs of the first harmonic components, which are shown in pink rectangle, and the signs of identical components differ. B, C After manual correction of the orientation of anchors (B) and bars (C), the outlines and signs of first harmonic components are identical.

Figure 3 in A geometric morphometric approach to the analysis of the shape variability of the haptoral attachment structures of Ligophorus species (Platyhelminthes: Monogenea)

Figure 3. PCA of the size-invariant (A, B) and the size-considered (C, D) harmonics of all dorsal and ventral anchors of analyzed Ligophorus species. Left graphs (A, C) are based on fifty harmonics; right graphs (B, D) – on four ones. Keys: dots – dorsal anchors; triangles – ventral anchors.

Figure 1. A in A geometric morphometric approach to the analysis of the shape variability of the haptoral attachment structures of Ligophorus species (Platyhelminthes: Monogenea)

Figure 1. A Ligophorus szidati dorsal (top) and ventral (bottom) anchors were outlined by cubic Bezier polylines and stored in SVG files. B ElFourier computer program converted digitized outlines into 50 EFDs. Only first four harmonics are visible at the screenshot's bottom; the negative components of harmonics are colored in light gray. The restored outline perfectly satisfies the shape of anchor (red line around gray anchor). At the left side used anchors are shown; they differ by orientation of blades and direction of digitization; outlines oriented counterclockwise are filled.

Fig. 14 in Eight New Species Of Ligophorus Euzet & Suriano, 1977 (Monogenea: Ancyrocephalidae) From Mugilids Off Peninsular Malaysia

Fig. 14. Ligophorus fenestrum, new species: A, dorsal anchors; B, dorsal bar; C, ventral anchors; D, ventral bar; E, marginal hook; F, male copulatory organ.

Fig. 9 in Eight New Species Of Ligophorus Euzet & Suriano, 1977 (Monogenea: Ancyrocephalidae) From Mugilids Off Peninsular Malaysia

Fig. 9. Ligophorus funnelus, new species: A, dorsal anchors; B, dorsal bar; C, ventral anchors; D, ventral bar (two forms); E, marginal hook; F, male copulatory organ; G, vaginal opening and seminal receptacle.

Fig. 1 in Eight New Species Of Ligophorus Euzet & Suriano, 1977 (Monogenea: Ancyrocephalidae) From Mugilids Off Peninsular Malaysia

Fig. 1. Parameters measured: A, anchor; Bi, Bii, ventral bar; C, marginal hook; D, vagina; E, copulatory organ.

Fig. 5 in Eight New Species Of Ligophorus Euzet & Suriano, 1977 (Monogenea: Ancyrocephalidae) From Mugilids Off Peninsular Malaysia

Fig. 5. Dendrogram of 50 Ligophorus species based on the accessory piece of the copulatory organs (abbreviations for new species as in Fig. 3).

Fig. 12 in Eight New Species Of Ligophorus Euzet & Suriano, 1977 (Monogenea: Ancyrocephalidae) From Mugilids Off Peninsular Malaysia

Fig. 12. Ligophorus careyensis, new species: A, dorsal anchors; B, dorsal bar; C, ventral anchors; D, ventral bar (two forms); E, marginal hook; F, male copulatory organ; G, vaginal opening and seminal receptacle.

Fig. 4 in Eight New Species Of Ligophorus Euzet & Suriano, 1977 (Monogenea: Ancyrocephalidae) From Mugilids Off Peninsular Malaysia

Fig. 4. Dendrogram of 50 Ligophorus species based on characteristics of the bars (abbreviations for new species as in Fig. 3).

Fig. 11 in Eight New Species Of Ligophorus Euzet & Suriano, 1977 (Monogenea: Ancyrocephalidae) From Mugilids Off Peninsular Malaysia

Fig. 11. Ligophorus bantingensis, new species: A, dorsal anchors; B, dorsal bar; C, ventral anchors; D, ventral bar; E, marginal hook; F, male copulatory organ; G, vaginal opening and seminal receptacle.

Fig. 7. Ligophorus navjotsodhii, new species. 7i in Eight New Species Of Ligophorus Euzet & Suriano, 1977 (Monogenea: Ancyrocephalidae) From Mugilids Off Peninsular Malaysia

Fig. 7. Ligophorus navjotsodhii, new species. 7i, composite illustration of entire worm (dorsal view). 7A–F, sclerotised hard parts: A, dorsal anchors; B, dorsal bar; C, ventral anchors; D, ventral bar (two forms); E, marginal hook; F, male copulatory organ.

Fig. 10 in Eight New Species Of Ligophorus Euzet & Suriano, 1977 (Monogenea: Ancyrocephalidae) From Mugilids Off Peninsular Malaysia

Fig. 10. Ligophorus parvicopulatrix, new species: A, dorsal anchors; B, dorsal bar; C, ventral anchors; D, ventral bar (two forms); E, marginal hook; F, male copulatory organ.

Fig. 2 in Eight New Species Of Ligophorus Euzet & Suriano, 1977 (Monogenea: Ancyrocephalidae) From Mugilids Off Peninsular Malaysia

Fig. 2. Principle Component Analysis (PCA) scatterplot of 318 Ligophorus specimens. The vertical and horizontal bar plots indicate one-dimensional summary of the principle component axes.

Fig. 8. Ligophorus chelatus, new species. 8i in Eight New Species Of Ligophorus Euzet & Suriano, 1977 (Monogenea: Ancyrocephalidae) From Mugilids Off Peninsular Malaysia

Fig. 8. Ligophorus chelatus, new species. 8i, composite illustration of entire worm (dorsal view). A–G, sclerotised hard parts: A, dorsal anchors; B, dorsal bar; C, ventral anchors; D, ventral bar (two forms); E, marginal hook; F, male copulatory organ; G, vaginal opening and seminal receptacle.

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Fig. 6 in Three new species of Ligophorus Euzet & Suriano, 1977 (Monogenea: Ancyrocephalidae) from Moolgarda buchanani (Bleeker) off Johor, Malaysia based on morphological, morphometric and molecular data

Fig. 6. Sclerotised hard parts of L. grandis, new species: A, dorsal anchors; B, dorsal bar; C, ventral anchors; D, ventral bar (dorsal view); E, marginal hook; F, male copulatory organ.

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Fig. 5 in Three new species of Ligophorus Euzet & Suriano, 1977 (Monogenea: Ancyrocephalidae) from Moolgarda buchanani (Bleeker) off Johor, Malaysia based on morphological, morphometric and molecular data

Fig. 5. Sclerotised hard parts of L. liewi, new species (A–F) and L. johorensis, new species (G–L): A & G, dorsal anchors; B & H, dorsal bar; C & I, ventral anchors; D & J, ventral bar (dorsal view); E & K, marginal hook; F & L, male copulatory organ.