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106 results for “Arthrotardigrada”
Fig. 6 in A new genus and five new species of the subfamily Florarctinae (Tardigrada, Arthrotardigrada)
Fig. 6. Higginsarctus signeae gen. et sp. nov., allotype, ♂ (NHMD-293900). Dorsal overview. Abbreviations: see Material and methods. Drawing by Stine B. Elle.
Fig. 1 in A new genus and five new species of the subfamily Florarctinae (Tardigrada, Arthrotardigrada)
Fig. 1. General features of the lateral alae of Higginsarctus gen. nov. The procuticle sends out branches (ramuli) to the edge of the alae. Drawing by Stine B. Elle.
Fig 5 in A new genus and five new species of the subfamily Florarctinae (Tardigrada, Arthrotardigrada)
Fig 5. SEM-micrographs of Higginsarctus signeae gen. et sp. nov., paratype, ♀ (NHMD-293902). A. Dorso-lateral overview. B. Digits and claws of leg I. C. Digits and claws of leg II and leg III. D. Caudal end, dorsal view. Arrows indicate the large dorsal pores. E. Close up on the sculpture of the dorsal cuticle. The small knob-like structures arranged in rosettes are indicated by white polygons. The larger knob-like structures are indicated by white circles. Abbreviations: see Material and methods.
Fig. 11 in A new genus and five new species of the subfamily Florarctinae (Tardigrada, Arthrotardigrada)
Fig. 11. PhC-micrographs of Higginsarctus lassei gen. et sp. nov., holotype, ♀ (NHMD-293913). A. Ventral overview. B. Dorsal overview showing the metameric folds of the dorsal cuticle. C. Close up on the head, ventral view showing the weak indication of secondary clava (white solid arrow), internal cirri and primary clavae with van der Land's body. Abbreviations: see Material and methods.
Fig. 12 in A new genus and five new species of the subfamily Florarctinae (Tardigrada, Arthrotardigrada)
Fig. 12. Higginsarctus martini gen. et sp. nov., holotype, ♀ (NHMD-293903). Ventral overview. Abbreviations: see Material and methods. Drawing by Stine B. Elle.
FIGURE 4 in Marine Tardigrada from the Mexican Caribbean with the description of Styraconyx robertoi sp. nov. (Arthrotardigrada: Styraconyxidae)
FIGURE 4. DIC-micrographs of Styraconyx robertoi sp. nov. A. Median cirrus, holotypic female. B. Internal cirrus, holotypic female. C. External cirrus, holotypic female. D. Primary clava and lateral cirrus with expanded base (arrow), female paratype. E. Ventro-lateral view of secondary clava (arrow), female paratype. F. Dorso-lateral view of secondary clava (arrow), female paratype. G. Sense organ of leg I, female paratype. H. Cirrus E and leg IV sense organ, female paratype. I. Cirrus E and leg IV sense organ from another angle, female paratype.
FIGURE 2 in Marine Tardigrada from the Mexican Caribbean with the description of Styraconyx robertoi sp. nov. (Arthrotardigrada: Styraconyxidae)
FIGURE 2. DIC-micrographs of Styraconyx robertoi sp. nov., holotypic female. A. Overview. B. Grid-like sculpture of the dorsal cuticle. C. Gonopore and anus.
FIGURE 6 in Marine Tardigrada from the Mexican Caribbean with the description of Styraconyx robertoi sp. nov. (Arthrotardigrada: Styraconyxidae)
FIGURE 6. SEM-micrographs of Styraconyx robertoi sp. nov. A. Median cirrus. B. Internal cirrus. C. External cirrus. D. Sense organ of leg I. E. Sense organ of leg II. F. Sense organ of leg III.
FIGURE 4 in Moebjergarctus clarionclippertonensis, a new abyssal tardigrade (Arthrotardigrada, Halechiniscidae, Euclavarctinae) from the Clarion-Clipperton Fracture Zone, North-East Pacific
FIGURE 4. Moebjergarctus clarionclippertonensis sp. nov.—the head and cephalic appendages. A. The head of a paratype (B6418500012), showing the separation of the cirrus A and primary clava; B. Ventral view of the head, showing the ventral location of external cirri (paratype B6418500016); C. Cirrus A (paratype B6418500005); D. Median cirrus (paratype B6418500013); E. External cirrus (paratype B6418500005); F. Internal cirrus (paratype B6418500013). SEM photos; scale bars A–B 6 µm; C–F 1 µm. Abbreviations: cr—cirrophore; ec—external cirrus; fl—flagellum; ic—internal cirrus; ca—cirrus A; mc—median cirrus; pc—primary clava; sa—annulated portion of the scapus; sc—secondary clava; ss—smooth portion of the scapus.
FIGURE 2 in Moebjergarctus clarionclippertonensis, a new abyssal tardigrade (Arthrotardigrada, Halechiniscidae, Euclavarctinae) from the Clarion-Clipperton Fracture Zone, North-East Pacific
FIGURE 2. Moebjergarctus clarionclippertonensis sp. nov. A. Habitus (LM photo of the holotype, B6418500008, scale bar=50 µm); B. Schematic drawing of the holotype (scale bar=50 µm); C. Dorsal view (SEM photo of a paratype, B6418500005, scale bar=20 µm). Abbreviations: an—anus; bt—buccal tube; bu—caudodorsal bulge; ce—cirrus E; ec—external cirrus; go—gonopore; ic—internal cirrus; ca—cirrus A; mc—median cirrus; pb—pharyngeal bulb; pc—primary clava; p1–p4—sensory organs on legs I–IV; sc—secondary clava; sr—seminal receptacle; st—stylet.
FIGURE 2 in A new tardigrade, Mutaparadoxipus duodigifinis gen. nov., sp. nov. (Heterotardigrada: Arthrotardigrada), from the Southeastern United States
FIGURE 2. Mutaparadoxipus duodigifinis gen. nov., sp. nov. Differential interference contrast optics. A. Anterior region showing full complement of cephalic appendages. Numerals I–IV indicate toes, numbered from anterior to posterior or medial to lateral, depending on the specimen orientation. B. Posterior region. Note that leg IV is turned backwards, as is characteristic of all tardigrades. Scale bars: 10 µm.
FIGURE 3 in A new tardigrade, Mutaparadoxipus duodigifinis gen. nov., sp. nov. (Heterotardigrada: Arthrotardigrada), from the Southeastern United States
FIGURE 3. Mutaparadoxipus duodigifinis gen. nov., sp. nov. A. Anterior region, ventral view. Scanning electron micrograph. Anterior is left. B. Foot of leg I, ventral view. Scanning electron micrograph. Note that each claw can be retracted into a claw sheath. C. Posterior region, ventral view. Differential interference contrast optics. Posterior is down. Scale bars: A and C, 10 µm; B, 2 µm.
FIGURE 4 in A new Stygarctus (Arthrotardigrada: Stygarctidae) from Japan, with entangled seminal receptacle ducts
FIGURE 4. Drawings of Stygarctus ayatori sp. nov. (A) Bucco-pharyngeal apparatus of specimen mounted in distilled water; (B) female genital structure of paratype [KUZ Z681]; (C) male genital structure of paratype [KUZ Z683]. a, anus; ap, apophysis; bt, buccal tube; fg, female gonopore; f, furca; it, internal thickening; mg, male gonopore; pl, placoid; sr, seminal receptacle; st, stylet.
FIGURE 6 in A new Stygarctus (Arthrotardigrada: Stygarctidae) from Japan, with entangled seminal receptacle ducts
FIGURE 6. Scanning electron mircographs of Stygarctus ayatori sp. nov., adult female. (A) Dorsal view, scale bar= 20 µm; (B) lateral view, scale bar= 20 µm; (C) cephalic view, scale bar= 10 µm; (D) female gonopore, scale bar= 2 µm. a, anus; fg, female gonopore; o, opening of seminal receptacle.
FIGURE 5 in A new Stygarctus (Arthrotardigrada: Stygarctidae) from Japan, with entangled seminal receptacle ducts
FIGURE 5. Differential interference contrast micrographs of Stygarctus ayatori sp. nov. (A) Dorsal view of holotype female [KUZ Z677], scale bar= 20 µm; (B) bucco-pharyngeal apparatus of specimen mounted in distilled water, scale bar= 10 µm; (C) female genital structure of paratype [KUZ Z681], scale bar= 5 µm.
FIGURE 4 in New records of marine tardigrades from Moorea, French Polynesia, with the description of Styraconyx turbinarium sp. nov. (Arthrotardigrada, Halechiniscidae)
FIGURE 4. Drawings of Styraconyx turbinarium sp. nov. A. Foot. B. Sense organ leg I. C. Sense organ leg II. D. Sense organ leg III. E. Sense organ leg IV. F. Internal cephalic cirrus. G. External cephalic cirrus. H. Median cirrus. I. Lateral cirrus A and primary clava. J. Cirrus E. Scale bar = 5 µm.
FIGURE 3 in New records of marine tardigrades from Moorea, French Polynesia, with the description of Styraconyx turbinarium sp. nov. (Arthrotardigrada, Halechiniscidae)
FIGURE 3. Styraconyx turbinarium sp. nov. Holotype. A. Habitus. Scale bar = 50 µm. B. Cuticular punctations. Scale bar = 25 µm. C. Detail of the primary clava (arrow 1) and lateral cirrus A (arrow 2). The segmented internal cephalic cirrus is also visible (arrow 3). Scale bar = 10 µm. D. Leg IV showing claws and peduncles (arrow). Scale bar = 10 µm.
FIGURE 2. Florarctus kwoni from Moorea, French Polynesia. A in New records of marine tardigrades from Moorea, French Polynesia, with the description of Styraconyx turbinarium sp. nov. (Arthrotardigrada, Halechiniscidae)
FIGURE 2. Florarctus kwoni from Moorea, French Polynesia. A. Habitus showing enlarged posterior margin of right lateral ala making up the right fin of the rocket-shaped alae. Scale bar = 100 µm. B. Second specimen with arrows indicating procuticular supports (caestus); leg with foot is leg III, leg to left of photo is leg IV. Scale bar = 10 µm.
FIGURE 1. Dipodarctus anaholiensis. A. Holotype from Hawaii, USA with arrow showing the smaller digit 4 in New records of marine tardigrades from Moorea, French Polynesia, with the description of Styraconyx turbinarium sp. nov. (Arthrotardigrada, Halechiniscidae)
FIGURE 1. Dipodarctus anaholiensis. A. Holotype from Hawaii, USA with arrow showing the smaller digit 4 on leg I. Scale bar = 50 µm. B. Specimen from Moorea, French Polynesia. Leg IV with arrow showing the cuticular folds on external digits. Scale bar = 10 µm. C. Specimen from Moorea, French Polynesia. Habitus. Scale bar = 100 µm.
FIGURE 1 in Quisarctus yasumurai gen. et sp. nov. (Arthrotardigrada: Halechiniscidae) from a submarine cave, off Iejima, Ryukyu Islands, Japan
FIGURE 1. Drawing of Quisarctus yasumurai gen. et sp. nov., holotypic female [KUZ Z1649]. (A) Dorsal view; (B) ventral view. a, anus; bt, buccal tube; cE, cirrus E; ec, external cirrus; ic, internal cirrus; g, gonopore; lc, lateral cirrus; mc, median cirrus; pb, pharyngeal bulb; pc, primary clava; pl, placoid; sr, seminal receptacle; st, stylet; s1–4, sense organs of legs I–IV.
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