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Fig. 4 in Morphology and biometry of two Chinese diploid parthenogenetic Artemia populations with a special emphasis on the gonopods and frontal knobs of rare males

Fig. 4. Scatterplots of discriminant analyses. A–D: Using 13 parameters suggested by Hontoria & Amat (1992) and Triantaphyllidis et al. (1997a) (A) female, two dimension plot (B) female, three dimension plot (C) male, two dimension plot (D) male, three dimension plot. E–F: Using 12 parameters of gonopod and frontal knob suggested by Zheng & Sun (2008) (E) two dimension plot (F) three dimension plot. G–H: Using all aforementioned parameters (G) two dimension plot (H) three dimension plot.

Fig. 2 in Morphology and biometry of two Chinese diploid parthenogenetic Artemia populations with a special emphasis on the gonopods and frontal knobs of rare males

Fig. 2. Frontal knobs of rare males of parthenogenetic Artemia (A) GH, lateral view (B) CK-par, lateral view (C) GH, frontal view (D) CK-par, frontal view (E) GH, enlargement to show arrangement of spines (F) CK-par, enlargement to show arrangement of spines.

Fig. 1 in Morphology and biometry of two Chinese diploid parthenogenetic Artemia populations with a special emphasis on the gonopods and frontal knobs of rare males

Fig. 1. Gonopods of rare males of parthenogenetic Artemia and spines on the surface of gonopods (A) the gonopod of GH (B) the gonopod of CK-par; C. basal part of the gonopod of GH (D) exo-lateral spines of GH (E) exo-lateral spines of CK-par (F) the basal gonopod spine of CK-par in detail (G) posterior spines of GH (H) posterior spines of CK-par. BG = basal portion of gonopod. DG = distal portion of gonopod. DA = digitiform apex. ES = exo-lateral spines. PS = posterior spines. BGS = basal gonopod spines.

Fig. 3 in Morphology and biometry of two Chinese diploid parthenogenetic Artemia populations with a special emphasis on the gonopods and frontal knobs of rare males

Fig. 3. Percentage composition of specimens with different LD/SD (ratio of large diameter to small diameter of frontal knob) in 15 Artemia populations.

FIGURE 6 in Taxonomic consideration of eight Chinese bisexual Artemia populations, based on the morphology of frontal knob and gonopod and the result of cross-breeding tests

FIGURE 6. Distal gonopod spines of different Artemia populations. (A, B) Gonopods of URM to show the position of spines on distal gonopod (in A, the thickness of finger-like tip is inflated because the specimen is molting and the old skeleton has not been stripped from the finger-like tip). (C, D) Exolateral spines of URM. (E) Posterior spines of URM. (F) Gonopod of SAL to show the position of spines on distal gonopod. (G) Posterior spines of SAL. (H) Exolateral spines of SAL. (I) An exolateral spine of SAL with bifurcated tip. (J) Gonopod of SFB to show the position of spines on distal gonopod. (K, L) Exolateral spines of SFB. (M) A spine located on the anterior surface of distal gonopod of SFB. (N) Gonopod of PER to show the position of spines on distal gonopod. BG = basal gonopod; BGS = basal gonopod spine; DG = distal gonopod; ES = exolateral spines; FT = finger-like tip; PS = posterior spines. Abbreviations of Artemia populations see Table 1. Scale bars: A, B, F, J and N = 50 µm; C, E, G, H and I = 10 µm; D, K, L and M = 5 µm.

FIGURE 3 in Taxonomic consideration of eight Chinese bisexual Artemia populations, based on the morphology of frontal knob and gonopod and the result of cross-breeding tests

FIGURE 3. SEM photographs of the frontal knobs of Chinese bisexual Artemia populations to show the appearance of frontal knobs (A, C, E and G; frontal view) and the arrangement of spines (B, D, F and H). (A, B) LGC. (C, D) CMC. (E, F) DDC. (G, H) JBCK. Abbreviations of Artemia populations see Table 1. Scale bars: A, C, E and G = 100 µm; B, D, F and H = 20 µm.

FIGURE 4 in Taxonomic consideration of eight Chinese bisexual Artemia populations, based on the morphology of frontal knob and gonopod and the result of cross-breeding tests

FIGURE 4. The appearance of the distal gonopod of five bisexual Artemia populations. (A) SIN. (B) LGC. (C) URM. (D) SAL. (E) SFB. (F) PER. BG = basal gonopod; DG = distal gonopod; FT = finger-like tip. Basal gonopod spine is arrowed. Abbreviations of Artemia populations see Table 1. Scale bars = 100 µm.

FIGURE 1 in Taxonomic consideration of eight Chinese bisexual Artemia populations, based on the morphology of frontal knob and gonopod and the result of cross-breeding tests

FIGURE 1. Ventral view of the head of Artemia (Lagkor Co population), showing the position of frontal knobs and their appearance in frontal view. CE = compound eye. E = exopodite of second antenna. FA = first antenna. FK = frontal knob. P = protopodite of second antenna. Scale bar = 1 mm.

FIGURE 2 in Taxonomic consideration of eight Chinese bisexual Artemia populations, based on the morphology of frontal knob and gonopod and the result of cross-breeding tests

FIGURE 2. SEM photographs of the frontal knobs of Chinese bisexual Artemia populations to show the appearance of frontal knobs (A, C, E and H; frontal view) and the arrangement of spines (B, D, F, G and I). (A, B) SIN. (C, D) BDJR. (E, F, G) YIM (arrows in F point to spines arranged in a pattern of sextuplet; G is an enlarged image of a cluster of spines in septuplet pattern). (H, I) JYH. Abbreviations of Artemia populations see Table 1. Scale bars: A, C, E and H = 100 µm; B, D, F and I = 20 µm; G = 10 µm.

FIGURE 5 in Taxonomic consideration of eight Chinese bisexual Artemia populations, based on the morphology of frontal knob and gonopod and the result of cross-breeding tests

FIGURE 5. The distal gonopod spines of the bisexual Artemia from China. (A, B) Panoramic images of the gonopods of LGC (A) and BDJR (B) to show the position of three groups of distal gonopod spines (in B, the position of exolateral spines is arrowed). (C) Orthostichous spines of LGC. (D) Orthostichous spines of BDJR. (E) Posterior spines of LGC. (F) Exolateral spines of YIM. (G) Exolateral spine and spinules (arrowed) of CMC. BG = basal gonopod; BGS = basal gonopod spine; DG = distal gonopod; ES = exolateral spines; FT = finger-like tip; OS = orthostichous spines; PS = posterior spines. Abbreviations of Artemia populations see Table 1. Scale bars: A and B = 100 µm; C–F = 10 µm; G = 5 µm.

FIGURE 7 in Taxonomic consideration of eight Chinese bisexual Artemia populations, based on the morphology of frontal knob and gonopod and the result of cross-breeding tests

FIGURE 7. Scatterplot of the first two canonical discriminant functions (group centroids) results from the discriminant analysis of six morphometric characters in eight Chinese Artemia populations. Abbreviations of Artemia populations see Table 1.

FIGURE 3. Figs. 3A–C in Redescription of Sartoriana trilobata (Alcock, 1909) (Crustacea: Decapoda: Brachyura: Gecarcinucidae) from Assam, Northeast India, with notes on the morphology of male gonopods

FIGURE 3. Figs. 3A–C: Sartoriana trilobata, 3A, dorsal view of left G1; 3B, ventral view of right G1; 3C, dorsal view of G2 (ZSI C8071/2) (scale bar 1 mm). Figs. 3D–F: Sartoriana spinigera, 3D, dorsal view of left G1; 3E, ventral view of right G2; 3F, dorsal view of G2 (ZSI C6070/2) (scale bar 1 mm).

FIGURE 2. Figs. 2A–B in Redescription of Sartoriana trilobata (Alcock, 1909) (Crustacea: Decapoda: Brachyura: Gecarcinucidae) from Assam, Northeast India, with notes on the morphology of male gonopods

FIGURE 2. Figs. 2A–B: Sartoriana trilobata, 2A, ventral view of female pleon; 2B, gonopore on pleon (ZSI C8071/2) (scale bar 10 mm).

FIGURE 5. Figs. 5A–C in Redescription of Sartoriana trilobata (Alcock, 1909) (Crustacea: Decapoda: Brachyura: Gecarcinucidae) from Assam, Northeast India, with notes on the morphology of male gonopods

FIGURE 5. Figs. 5A–C collection sites of Sartoriana trilobata in Lakhimpur district of Assam. Figs. 5A–B, collection sites of Ranganadi River (Lakhimpur district), 5C, Bosagaon beel (Lakhimpur district). Fig. 5D, collection site of Darika River (Sivasagar district of Assam).

FIGURE 1. Figs. 1A–D in Redescription of Sartoriana trilobata (Alcock, 1909) (Crustacea: Decapoda: Brachyura: Gecarcinucidae) from Assam, Northeast India, with notes on the morphology of male gonopods

FIGURE 1. Figs. 1A–D: Sartoriana trilobata (Alcock, 1909), Lakhimpur, Assam, ZSI C8071/2; 1A, dorsal view of carapace; 1B, frontal view of cephalothorax; 1C, ventral view of male pleon; 1D, major cheliped (ZSI C8071/2) (scale bar 10 mm). Figs. 1E–H: Sartoriana spinigera, 1E, dorsal view of carapace; 1F, frontal view of cephalothorax; 1G, ventral view of male pleon; 1H, major cheliped (ZSI C6070/2) (scale bar 10 mm).

FIGURE 4 in Redescription of Sartoriana trilobata (Alcock, 1909) (Crustacea: Decapoda: Brachyura: Gecarcinucidae) from Assam, Northeast India, with notes on the morphology of male gonopods

FIGURE 4. The Map of North-east India; the highlighted areas are [Assam (Sivasagar, Lakhimpur), Mizoram (Lunglei)] habitats of Sartoriana trilobata.

Figure 7 in Morphological changes during ontogeny of the male first and second gonopods of Mithraculus forceps A. Milne-Edwards, 1875 (Brachyura: Majoidea: Mithracidae)

Figure 7. Gonopods of Mithraculus forceps A. Milne-Edwards, 1875 (CW 21.9 mm – size class 15). (a-f), first gonopod. (g, h), second gonopod. (a), general view. (b), apical plate. (c), ejaculatory canal aperture. (d), spines of apex. (e), sensillum. (f), simple setae of shaft; (g), general view, simple setae in detail. (h), apex.

Figure 1. Mithraculus forceps A in Morphological changes during ontogeny of the male first and second gonopods of Mithraculus forceps A. Milne-Edwards, 1875 (Brachyura: Majoidea: Mithracidae)

Figure 1. Mithraculus forceps A. Milne-Edwards, 1875, dorsal view. 15 Males (CW 4.0 to 21.9 mm). Scale bar 1 cm.

Figure 6 in Morphological changes during ontogeny of the male first and second gonopods of Mithraculus forceps A. Milne-Edwards, 1875 (Brachyura: Majoidea: Mithracidae)

Figure 6. Gonopods of Mithraculus forceps A. Milne-Edwards, 1875 (CW 18.1 mm – size class 12). (a-f), first gonopod. (g, h), second gonopod. (a), general view. (b), apical plate. (c), ejaculatory canal aperture. (d), spines of apex. (e), sensillum. (f), plumodenticulate setae of base; (g), general view, plumose setae in detail. (h), apex.

Figure 3 in Morphological changes during ontogeny of the male first and second gonopods of Mithraculus forceps A. Milne-Edwards, 1875 (Brachyura: Majoidea: Mithracidae)

Figure 3. Gonopods of Mithraculus forceps A. Milne-Edwards, 1875 (CW 4.0 mm – size class 1). (a-f), first gonopod. (g, h), second gonopod. (a), general view. (b), distal view. (c), apex view. (d), spines of apex. (e), sensillum. (f), plumose seta of base; (g), general view, plumodenticulate setae in detail. (h), apex.