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40 results for “gastrotrich”
FIGURE 4. Dasydytes lamellatus differential interference contrast photomicrographs. A–B, D in New data on Brazilian semiplanktonic gastrotrichs (Gastrotricha: Chaetonotida)
FIGURE 4. Dasydytes lamellatus differential interference contrast photomicrographs. A–B, D: Ventral View, C: egg, E: Dorsal view. at: anterior cilia tuft; ca–b: cephalic long spines; db: dorsal cilia band; ta–tb: trunk spines; pt: posterior cilia tuft; r: rear spine; vt1–3: ventral cilia tufts.
FIGURE 9 in New data on Brazilian semiplanktonic gastrotrichs (Gastrotricha: Chaetonotida)
FIGURE 9. Phylogenetic relationships of Chaetonotida inferred from the maximum likelihood analysis of the concatenated data set, bootstrap support value threshold above 70. Yellow and Green: "Dasydytidae", Cyan: Neogosseide, Orange: "Chaetonotidae".
FIGURE 1. Dasydytes lamellatus differential interference contrast photomicrographs. A in New data on Brazilian semiplanktonic gastrotrichs (Gastrotricha: Chaetonotida)
FIGURE 1. Dasydytes lamellatus differential interference contrast photomicrographs. A: Dorsal view, B: Ventral view, spined scales at posterior protuberance, C: Ventral motile spines with two lamella-like denticles, D: Ventral spine groups inserted at the head and trunk, E: Lateral view, F: egg. at: anterior tuft; ca–cb: cephalic long spines; db: cephalic dorsal cilia band; de: denticle; lt: lateral tuft; ss: short spines; ta–tb: trunk spines; r: rear spine.
FIGURE 7. Neogossea acanthocolla differential interference contrast photomicrographs. A–B in New data on Brazilian semiplanktonic gastrotrichs (Gastrotricha: Chaetonotida)
FIGURE 7. Neogossea acanthocolla differential interference contrast photomicrographs. A–B: dorsal view, C–E: Lateral view, F–G: Dorsal view. ac: anterior constriction; at: anterior cilia tuft; br: neck brush spines; cs: cephalic short spines; db: dorsal cilia band; mv: median ciliary tuft; pb: posterior bulb; ts: trunk scales.
FIGURE 3. Dasydytes lamellatus scanning electron microscope photomicrographs. A in New data on Brazilian semiplanktonic gastrotrichs (Gastrotricha: Chaetonotida)
FIGURE 3. Dasydytes lamellatus scanning electron microscope photomicrographs. A: Ventral view, B, C: Ventral view, ventral short spine group. D: Dorsal view, mouth tentacles, E: Spine lamella-like denticle. db: dorsal cilia band; de: denticle mo: mouth; hy: hypostomion; ss: short spines; vps: ventral posterior scales; vt1–3: ventral cilia tufts.
FIGURE 2. Dasydytes lamellatus differential interference contrast photomicrographs. A in New data on Brazilian semiplanktonic gastrotrichs (Gastrotricha: Chaetonotida)
FIGURE 2. Dasydytes lamellatus differential interference contrast photomicrographs. A: Dorsal view, B: Ventral view, ciliature tufts, C: lateral ciliature tuft, D: E: Cephalic ciliature. at: anterior cilia tuft; ca–cb: cephalic long spine; ce: cephalion; db: dorsal cilia band; lt: lateral cilia tuft; ta–tb: trunk spines; r: rear spine; ss: short spines; ta: trunk spines; vt1–3: ventral cilia tufts.
FIGURE 6. Haltidytes pseudosquamosus differential interference contrast photomicrographs. A in New data on Brazilian semiplanktonic gastrotrichs (Gastrotricha: Chaetonotida)
FIGURE 6. Haltidytes pseudosquamosus differential interference contrast photomicrographs. A: Dorsal view, B: Dorsal view, ciliature tufts, C: Dorsal view, spines path, D, E: Cephalic ciliature. at: anterior cilia tuft; db: dorsal cilia band; nb: neck sensory bristle; nf: nefridia; pt: posterior cilia tuft.
FIGURE 5. Haltidytes pseudosquamosus differential interference contrast photomicrographs. A in New data on Brazilian semiplanktonic gastrotrichs (Gastrotricha: Chaetonotida)
FIGURE 5. Haltidytes pseudosquamosus differential interference contrast photomicrographs. A: Dorsal view, B: Ventral view, spines insertion, C: Dorsal view, spines insertion, D, dorsal view, spine paths, E: posterior spine denticle. de: denticles; nf: nefridia; ta–d: trunk spines.
FIGURE 3 in Contribution to the freshwater gastrotrich fauna of wetland areas of southwestern Ontario (Canada) with redescriptions of seven species and a check-list for North America
FIGURE 3. Schematic drawing of Setopus lemnicola. A) Dorsal view. B) Distal end of a macrospine.
FIGURE 4 in Contribution to the freshwater gastrotrich fauna of wetland areas of southwestern Ontario (Canada) with redescriptions of seven species and a check-list for North America
FIGURE 4. Schematic drawing of Aspidophorus ontarioniensis. A) Dorsal view. B) Lateral view.
Figure 2 from: Minowa AK, Garraffoni ARS (2018) Redescription of the dasydytid gastrotrich Haltidytes ooëides (Brunson, 1950) based on type material. ZooKeys 785: 41-48. https://doi.org/10.3897/zookeys.785.28382
Figure 2 Light micrographs (DIC) and redrawing of the schematic drawing of Haltidytesooëides (Brunson, 1950). A whole animal view B redrawing of the schematic drawing of the original description C the same image of A in which the arrangement of the trunk spines is highlighted D schematic drawing of the dorsal view E schematic drawing of the ventral view. Scales bars: 50 µm. Abbreviations: alt anterior lateral ciliary tuft att anterior locomotory ciliation tuft cd caudal bristle ce cephalion hy: hypostomion mlt mediolateral ciliary tuft mo mouth ph pharynx plb posterior lateral ciliary band ptt: posterior locomotory ciliation tuft ta1-2 trunk spines tb1-2 trunk spines tc1-2 trunk spines td trunk spines.
Figure 1 from: Minowa AK, Garraffoni ARS (2018) Redescription of the dasydytid gastrotrich Haltidytes ooëides (Brunson, 1950) based on type material. ZooKeys 785: 41-48. https://doi.org/10.3897/zookeys.785.28382
Figure 1 Light micrographs (DIC) of Haltidytesooëides (Brunson, 1950). A dorsal view, B–C ventral view showing the insertion of trunk spines D dorsal view of the head E–F ventral view of the head. Asterisks (*) indicate the body cuticle. Scales bars: A–C 50 µm, D–F 25 µm. Abbreviations: alt anterior lateral ciliary tuft att anterior locomotory ciliation tuft ce cephalion, hy: hypostomion mf middle furrow mlt mediolateral ciliary tuft mo mouth plb posterior lateral ciliary band ptt posterior locomotory ciliation tuft tb1-2 trunk spines tc1-2 trunk spines td trunk spines.
Figure 1 from: Todaro M (2012) A new marine gastrotrich from the State of São Paulo (Brazil), with a key to species of Pseudostomella (Gastrotricha, Thaumastodermatidae). ZooKeys 223: 39-51. https://doi.org/10.3897/zookeys.223.3975
Figure 1 - Localities along the cost of the State of São Paulo (Brazil) where Pseudostomella dolichopoda sp. n. was found. 1 praia Grande 2 praia Prumirim 3 Ilha do Prumirim 4 praia do Tenório (Ubatuba district) 5 praia de Guaecá 6 praia de Santiago 7 praia do Saí 8 praia Preta e Conchas(São Sebastião district) 9 praia de Castelhanos (Ilhabela island). For geographic coordinates and characteristics of the microhabitat see Todaro and Rocha (2004).
Figure 4 from: Todaro M (2012) A new marine gastrotrich from the State of São Paulo (Brazil), with a key to species of Pseudostomella (Gastrotricha, Thaumastodermatidae). ZooKeys 223: 39-51. https://doi.org/10.3897/zookeys.223.3975
Figure 4 - Pseudostomella dolichopoda sp. n. SEM photomicrographs. A habitus, dorsal view B habitus, ventral view; C close-up of the anterior region, dorsal view D close-up of the anterior region, ventrolateral view E close-up of the posterior region, dorsal view F close-up of the posterior region, ventral view, arrow shows the two ventrolateral adhesive tubes borne from a common base.
Figure 3 from: Todaro M (2012) A new marine gastrotrich from the State of São Paulo (Brazil), with a key to species of Pseudostomella (Gastrotricha, Thaumastodermatidae). ZooKeys 223: 39-51. https://doi.org/10.3897/zookeys.223.3975
Figure 3 - Pseudostomella dolichopoda sp. n. DIC photomicrographs. A habitus B close-up of the anterior region, dorsal view C Close-up of the anterior region, ventral view.
Figure 2 from: Todaro M (2012) A new marine gastrotrich from the State of São Paulo (Brazil), with a key to species of Pseudostomella (Gastrotricha, Thaumastodermatidae). ZooKeys 223: 39-51. https://doi.org/10.3897/zookeys.223.3975
Figure 2 - Pseudostomella dolichopoda sp. n. schematic drawing. Habitus as seen from the ventral side. CO caudal organ CP caudal pedicle DP dorsal papillae E egg FO frontal organ PhIJ pharyngeo-intestinal junction Pp pharyngeal pores T testicle TbA anterior adhesive tubes TbDL dorsolateral adhesive tubes TbL lateral adhesive tubes TbVL ventrolateral adhesive tubes VP ventral papillae.
Figure 3 from: Hochberg R, Atherton S, Gross V (2013) A new species of sublittoral marine gastrotrich, Lepidodasys ligni sp. n. (Macrodasyida, Lepidodasyidae), from the Atlantic coast of Florida. ZooKeys 289: 1-12. https://doi.org/10.3897/zookeys.289.4764
Figure 3 - The reproductive and muscular systems of Lepidodasys ligni sp. n. A Differential interference contrast photograph of the posterior end showing the accessory reproductive organs. B, C Confocal images (47 × 0.35 µm optical sections) of the musculature of the posterior end in lateral (B) and dorsal (C) views D Closeup of the caudal organ with DIC microscopy E Lateral view of an entire specimen revealing the muscular system (73 × 0.4 µm optical sections). Abbreviations: cg caudal gland; cm-co circular muscles of the caudal organ; cm-pc circular muscles of the posterior constriction; co caudal organ; coc caudal organ canal; dlm dorsal longitudinal muscle; dllm dorsal lateral longitudinal muscle; fo frontal organ; hm helicoidal muscle (end position on midgut); lh lateral sensory hair; ph pharynx; TbP posterior adhesive tube; scm somatic circular muscles (thoughout trunk); vllm ventrolateral longitudinal muscle.
Figure 2 from: Hochberg R, Atherton S, Gross V (2013) A new species of sublittoral marine gastrotrich, Lepidodasys ligni sp. n. (Macrodasyida, Lepidodasyidae), from the Atlantic coast of Florida. ZooKeys 289: 1-12. https://doi.org/10.3897/zookeys.289.4764
Figure 2 - Light micrographs of Lepidodasys ligni sp. n. (holotype). A Dorsal view B Closeup of anterior end with differential interference contrast (DIC) C Ventral view of anterior end with DIC. Abbreviations: co caudal organ; is interciliary scales; lc locomotory cilia; mo mouth; TbA anterior adhesive tubes; TbL lateral adhesive tubes.
Figure 1 from: Hochberg R, Atherton S, Gross V (2013) A new species of sublittoral marine gastrotrich, Lepidodasys ligni sp. n. (Macrodasyida, Lepidodasyidae), from the Atlantic coast of Florida. ZooKeys 289: 1-12. https://doi.org/10.3897/zookeys.289.4764
Figure 1 - Schematic of Lepidodasys ligni sp. n. showing the crossed-helical scale pattern and a closeup of the musculature in the caudal region. Abbreviations: cg caudal gland; cm-pc circular musculature of the posterior constriction; co caudal organ; dh dorsal sensory hairs; eg mature egg; ep epidermal gland; fo frontal organ; in intestine; is interciliary scales; lc locomotory cilia; lh lateral sensory hairs; lm longitudinal muscle; pc posterior constriction; ph pharynx; TbA anterior adhesive tubes; TbD dorsal adhesive tubes; TbL lateral adhesive tubes; TbP posterior adhesive tubes; vllm ventrolateral longitudinal muscle.
FIGURE 8 in New data on Brazilian semiplanktonic gastrotrichs (Gastrotricha: Chaetonotida)
FIGURE 8. Registers of semiplanktonic gastrotrichs of Brazil. A: Brazil, B: Teresina (Piauí state), C Paulínia (São Paulo state), D: São Paulo, E: Broa dam (São Paulo state). Red dots: reports on literature, blue dots: presente study records.
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