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Figure 4 in Predator-prey-scavenging interactions between Nucella lapillus, Carcinus maenas and Eulalia viridis all exploiting Mytilus galloprovincialis on a rocky shore recovering from tributyl-tin (TBT) pollution

Figure 4. An experimentally derived three-dimensional regression plot of the relationship between Nucella lapillus shell height (y-axis), the shell lengths of their chosen Mytilus galloprovincialis prey (z-axis) and the time spent atop each prey item (x-axis).

Figure 3 in Predator-prey-scavenging interactions between Nucella lapillus, Carcinus maenas and Eulalia viridis all exploiting Mytilus galloprovincialis on a rocky shore recovering from tributyl-tin (TBT) pollution

Figure 3. The relationship between the time Nucella lapillus spent atop its Mytilus galloprovincialis prey in laboratory experiments.

Figure 9 in Predator-prey-scavenging interactions between Nucella lapillus, Carcinus maenas and Eulalia viridis all exploiting Mytilus galloprovincialis on a rocky shore recovering from tributyl-tin (TBT) pollution

Figure 9. The relationship between the log-transformed numbers of Nucella lapillus recorded from the eastern side of the Mewsbrook Groyne (and the western side in September 2010) and the similarly log-transformed numbers of Eulalia viridis recorded on the occasions when they were observed to be moving over the rock surfaces

Figure 10 in Predator-prey-scavenging interactions between Nucella lapillus, Carcinus maenas and Eulalia viridis all exploiting Mytilus galloprovincialis on a rocky shore recovering from tributyl-tin (TBT) pollution

Figure 10. Plots showing, as a proportion of 100%, all the causes of death of individuals of Mytilus galloprovincialis collected from the Mewsbrook Groyne over the course of the 25-month period from September 2006 until September 2008.

Figure 1 in Predator-prey-scavenging interactions between Nucella lapillus, Carcinus maenas and Eulalia viridis all exploiting Mytilus galloprovincialis on a rocky shore recovering from tributyl-tin (TBT) pollution

Figure 1. The numbers of Nucella lapillus recorded from the Mewsbrook Groyne over the period from May 2004 to late August 2010. The first and last three open histograms represent counts from both sides of the groyne in May 2004 (25 individuals) and September 2009 (551 individuals), March 2010 (458 individuals) and late August 2010 (1241 individuals), the closed histograms represent numbers from the east side only.

Figure 2 in Predator-prey-scavenging interactions between Nucella lapillus, Carcinus maenas and Eulalia viridis all exploiting Mytilus galloprovincialis on a rocky shore recovering from tributyl-tin (TBT) pollution

Figure 2. The relationship between the shell heights of Nucella lapillus and the shell lengths of its Mytilus galloprovincialis prey on the Mewsbrook Groyne from May 2004 to August 2008.

Figure 6 in Karyotypes of water scavenger beetles (Coleoptera: Hydrophilidae): new data and review of published records

Figure 6. Karyotypes of the Hydrophilini. A–C, Hydrophilus, mitotic karyotype from embryo (A–B, Hydrophilus piceus; C, Hydrophilus pistaceus). D–H, Hydrochara: (D–F) Hydrochara caraboides, mitotic karyotype, embryo; (G–H) Hydrochara flavipes, mitotic karyotype, midgut. I–J, Sternolophus solieri (I, male mitotic karyotype; J, meiotic first metaphase from testes). A, C, D, G, I, without treatment. B, E, F, H, C-banded. Habitus figures: (K) Sternolophus solieri; (L) Hydrochara caraboides; (M) Hydrophilus piceus, from Short & Fikáček (2013).

Figure 5 in Karyotypes of water scavenger beetles (Coleoptera: Hydrophilidae): new data and review of published records

Figure 5. Karyotypes of the Hydrobiusini. A–D, Limnohydrobius convexus: (A–B) mitosis, midgut; (C–D): testis, prometaphase. F–J, Limnoxenus niger: (F–H) midgut; (I–J) meiotic metaphase I, testes. A–C, E–F, I, without treatment. D, G, H, J, C-banded. Habitus figures: (E) Limnohydrobius convexus; (K) Limnoxenus niger.

Figure 3 in Karyotypes of water scavenger beetles (Coleoptera: Hydrophilidae): new data and review of published records

Figure 3. Karyotypes of the Laccobiini, without treatment. A–H, Paracymus: (A–B) Paracymus aeneus, mitotic metaphase from midgut; (C–D) Paracymus scutellaris (C, spermatogonial mitosis, metaphase; D, mitotic metaphase from midgut.); (E–G) meiotic metaphase I from testes (E, Paracymus aeneus; F–G, Paracymus scutellaris). I–M, Tormus, mitotic metaphase from midgut: (I, K) Tormus posticalis; (J, L) Tormus helmsi. Habitus figures: (G) Paracymus scutellaris; (M) Tormus helmsi, from Fikáček et al. (2013).

Figure 1 in Karyotypes of water scavenger beetles (Coleoptera: Hydrophilidae): new data and review of published records

Figure 1. Tissues of hydrophiloid beetles used for chromosome preparations (as dissected, without any additional treatment, (B–E) in dorsal view; (A) Helophorus grandis; (B, C, I) Laccobius bipunctatus; (D–H) Coelostoma orbiculare). A, egg with a developing embryo. B–C, internal organs of the same male specimen in translucent light (B) and on black background (C). D, internal organs of a female with digestive system pulled aside. E, internal organs of male specimen. F, details of ovarioles and associated accessory glands. G–I, detail of midgut structure on black background (G) and in translucent light (H, I). Abbreviations: accg, accessory glands; aed, aedeagus; hg, hindgut; mg, midgut; Mt, Malpighian tubes; oo, ovarioles; ovi, ovipositor; rc, regeneration crypts; tes, testes. Not to scale.

Figure 2 in Karyotypes of water scavenger beetles (Coleoptera: Hydrophilidae): new data and review of published records

Figure 2. Karyotypes of the Amphiopini and Laccobiini. A–E, Amphiops mater, mitotic methaphase from midgut. F–L, Laccobius decorus, mitotic metaphase from midgut. A, C, F, H, J, without treatment. B, D, G, I, K, C-banded. Habitus figures: (E) Amphiops mater; (L) Laccobius decorus.

Figures 72–77 in Larval chaetotaxy and morphology are highly homoplastic yet phylogenetically informative in Hydrobiusini water scavenger beetles (Coleoptera: Hydrophilidae)

Figures 72–77. Larva of Limnoxenus niger, first instar (72–74) and third instar (75–77). 72, 75, labroclypeus. 73, 76, head capsule in dorsal view. 74, 77, head capsule in ventral view. Scale bars: Figs 72, 75: 0.05 mm, Figs 73–74, 76–59: 0.1 mm.

Figures 54–59 in Larval chaetotaxy and morphology are highly homoplastic yet phylogenetically informative in Hydrobiusini water scavenger beetles (Coleoptera: Hydrophilidae)

Figures 54–59. Larva of Limnohydrobius melaenus, first instar (54–56) and third instar (57–59). 54, 57, labroclypeus. 55, 58, head capsule in dorsal view. 56, 59, head capsule in ventral view. Scale bars: Figs 54, 57: 0.05 mm, Figs 55–56, 58–59: 0.1 mm.

Figures 68–71 in Larval chaetotaxy and morphology are highly homoplastic yet phylogenetically informative in Hydrobiusini water scavenger beetles (Coleoptera: Hydrophilidae)

Figures 68–71. Larva of Limnohydrobius melaenus, first instar (68–69) and third instar (70–71). 68, 70, mentum and prementum, dorsal view. 69, 71, mentum and prementum, ventral view. Scale bars: 0.05 mm.

Figures 44–53. Hybogralius hartmeyeri, third instar larva. 44–46 in Larval chaetotaxy and morphology are highly homoplastic yet phylogenetically informative in Hydrobiusini water scavenger beetles (Coleoptera: Hydrophilidae)

Figures 44–53. Hybogralius hartmeyeri, third instar larva. 44–46, head capsule (44, dorsally; 45, ventrally; 46, labroclypeus). 47–48, mandibles, dorsal view (47, left mandible; 48, right mandible). 49, antenna, dorsal view. 50–51, maxilla (50, dorsal view; 51, ventral view). 52, mentum and prementum, dorsal view. 53, prementum, ventral view. Scale bars: Figs 44–45: 0.1 mm, Figs 46–53: 0.05 mm.

Figures 35–43. Ametor scabrosus, first instar larva. 35–37 in Larval chaetotaxy and morphology are highly homoplastic yet phylogenetically informative in Hydrobiusini water scavenger beetles (Coleoptera: Hydrophilidae)

Figures 35–43. Ametor scabrosus, first instar larva. 35–37, head capsule (35, dorsally; 36, ventrally; 37, labroclypeus). 38, antenna, dorsal view. 39, right mandible, dorsal view. 40–41, maxilla (40, dorsal view; 41, ventral view). 42–43, mentum and prementum (42, dorsal view; 43, ventral view). Scale bars: Figs 35–36: 0.1 mm, Figs 37–43: 0.05 mm.

Figures 31–34 in Larval chaetotaxy and morphology are highly homoplastic yet phylogenetically informative in Hydrobiusini water scavenger beetles (Coleoptera: Hydrophilidae)

Figures 31–34. Larva of Hydramara argentina, first instar (31–32) and third instar (33–34). 31, 33, mentum and prementum, dorsal view. 32, 34, mentum and prementum, ventral view. Scale bars: 0.05 mm.

Figures 1–12 in Larval chaetotaxy and morphology are highly homoplastic yet phylogenetically informative in Hydrobiusini water scavenger beetles (Coleoptera: Hydrophilidae)

Figures 1–12. Hydrobiusini larvae, third instar larval habitus in dorsal, lateral and ventral view: 1–3, Hydramara argentina. 4–6, Limnohydrobius melaenus. 7–9, Sperchopsis tessellata. 10–12, Limnoxenus niger. Scale bars: 2 mm.

Figures 17–22 in Larval chaetotaxy and morphology are highly homoplastic yet phylogenetically informative in Hydrobiusini water scavenger beetles (Coleoptera: Hydrophilidae)

Figures 17–22. Larva of Hydramara argentina, first instar (17–19) and third instar (20–22). 17, 20, clypeolabrum. 18, 21, head capsule in dorsal view. 19, 22, head capsule in ventral view. Scale bars: Figs 17, 20: 0.05 mm, Figs 18–19, 21–22: 0.1 mm.

Figures 13–16. 13–14 in Larval chaetotaxy and morphology are highly homoplastic yet phylogenetically informative in Hydrobiusini water scavenger beetles (Coleoptera: Hydrophilidae)

Figures 13–16. 13–14, cuticular projections on head capsule: 13, Ametor scabrosus. 14, Sperchopsis tessellata. 15, Hydramara argentina, antenna of third instar larva showing secondary setae on A1 (gAN2) and basal pores on A2 (AN6 refers to the pore that is on the antennal segment). 16, Hydramara argentina, symmetrical nasale of one atypical first instar larva.