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23 results for “Penetrantiidae”
Fig. 24 in Boring bryozoans: an investigation into the endolithic bryozoan family Penetrantiidae
Fig. 24 Musculature of the gonozooid in Penetrantia parva from northern New Zealand. a Overview of the gonozooid and brood chamber and their exterior cuticle. b Polypide within zooidal tube and embryo within brood chamber. c–d Musculature of gonozooid and brood chamber. Note: the additional brood chamber plug muscle. bch brood chamber, bpm brood chamber plug muscle, e embryo, mo mouth opening, oo operculum occlusor, op operculum, ply polypide, pm parietal muscles, pvm parieto-vestibular muscle, rm retractor muscle, ttm tentacle muscle
Fig. 23 in Boring bryozoans: an investigation into the endolithic bryozoan family Penetrantiidae
Fig. 23 Histology of the gonozooid in Penetrantia concharum from Sweden. a–c Longitudinal semi thin sections through a gonozooid with the brood chamber and anal side on the left. b Close-up of lophophore and tentacles. c Close-up of brood chamber and embryo. d Volume rendering based on a section series with the anal side on the left. at atrium, bc body cavity, bp brood chamber plug, bpm brood chamber plug muscle, c collar, d diaphragm, e embryo, exc exterior cuticle, ic interior cuticle, ics inter- cuticular space, l lophophore, ooc oocyte, op operculum, rm retractor muscle, sop secondary operculum, t tentacle, ts tentacle sheath, v vestibulum, vw vestibular wall
Fig. 21 in Boring bryozoans: an investigation into the endolithic bryozoan family Penetrantiidae
Fig. 21 Stereomicroscopic images of whole mounts of gonozooids of six different penetrantiids. a Penetrantia concharum from Sweden. b–c P. irregularis from southern New Zealand. d P. parva from northern New Zealand. e P. parva from southern New Zealand. f P. cf. parva from New Caledonia. g P. clionoides from Guam. h Penetrantia sp. from Japan. bch brood chamber, e embryo, ooc oocyte, op operculum, rm retractor muscle, rp remains of polypide, st stolon
Fig. 19 in Boring bryozoans: an investigation into the endolithic bryozoan family Penetrantiidae
Fig. 19 Musculature of the lophophore and digestive tract of Penetrantia parva from northern New Zealand. Each image is oriented with the frontal side upwards and the basal side downwards. a, b Overview of an entire autozooid. c Lophophore base. d–e Details of the basal part of the polypide. f Tentacle tip musculature. g Caecum musculature. al abfrontal lophophoral base muscle, bd buccal dilatator, cac cardiac constrictor, cae caecum, db duplicature band, dis diaphragmatic sphincter, es esophagus, fl frontal lophophoral base muscle, lbm lophophoral base muscles, mo mouth opening, op operculum, pd parieto-diaphragmatic muscle, ph pharynx, pm parietal muscles, pvm parieto-vestibular muscle, rm retractor muscle, s septum, tt tentacle tips, ttm tentacle muscle, vm "v" shaped lophophoral base muscles
Fig. 20 in Boring bryozoans: an investigation into the endolithic bryozoan family Penetrantiidae
Fig. 20 Nervous system of an autozooid in Penetrantia parva from northern New Zealand. Based on staining against acetylated alpha-tubulin indicated in green. a–b Apertural innervation. c Visceral innervation. d Lophophoral base innervation. e–f Tentacle innervation. afn abfrontal neurite bundle., cg cerebral ganglion, con circumoral nerve ring, db duplicature band, itp intertentacular pit, mfn mediofrontal neurite bundle, mln medio-lateral visceral neurite bundle, mvn medio-visceral neurite bundle, oo operculum occlusor, op operculum, pm parietal muscles, pp parietal plexus, pvm parieto-vestibular muscle, t tentacle
Fig. 18 in Boring bryozoans: an investigation into the endolithic bryozoan family Penetrantiidae
Fig. 18 Apertural musculature, operculum, and stolon morphology of Penetrantia. a–c Musculature of aperture area in Penetrantia parva from northern New Zealand. d Operculum in P. cf. concharum from northern France. e Operculum and underlying musculature in P. concharum from Sweden. f Operculum and underlying musculature in P. parva from northern New Zealand. g Sac zooid in P. cf. concharum from northern France. h–i Stolonal network in P. cf. concharum from northern France. Asterisk indicates granules within a stolon. db duplicature band, dis diaphragmatic sphincter, oo operculum occlusor, op operculum, pd parieto-diaphragmatic muscle, pm parietal muscles, pvm parieto-vestibular muscle, s septum, st stolon, sz sac zooid, ttm tentacle muscles
Fig. 3 in Boring bryozoans: an investigation into the endolithic bryozoan family Penetrantiidae
Fig. 3 Scanning electron microscopic images of the apertures and opercula of five different penetrantiids. a Penetrantia concharum from Sweden. b P. cf. concharum from northern France. c–e P. irregularis from southern New Zealand. f P. parva from northern New Zealand. g P. parva from southern New Zealand. h P. cf. parva from New Caledonia. i–k Penetrantia sp. from Japan. Asterisk: rough surface area made of calcium carbonate chips. apn apertural notches, bt boring trace, exc exterior cuticle, op operculum, opg opercular groove, st stolon
Fig. 7 in Boring bryozoans: an investigation into the endolithic bryozoan family Penetrantiidae
Fig. 7 Scanning electron microscopic image of resin casts showing autozooids and their stolonal connection. a Penetrantia concharum from Sweden. b P. irregularis from southern New Zealand. c P. parva from northern New Zealand. d Younger bud of Penetrantia sp. from Japan. e Stolon with tubulets of P. parva from northern New Zealand. f Branching stolons and two early buds in P. parva from northern New Zealand. g Branching of the principal stolon in Penetrantia sp. from Japan. az autozooid, b bud, ped peduncle, st stolon, tu tubulet
Fig. 16 3D in Boring bryozoans: an investigation into the endolithic bryozoan family Penetrantiidae
Fig. 16 3D-reconstruction based on semi thin section series of Penetrantia concharum from Sweden. a Oral perspective. b Lateral perspective with the anal side on the right. c Anal perspective. d Lateral perspective with the anal side on the left. Blue: lophophore, green: digestive system, red: muscu-
Fig. 14 in Boring bryozoans: an investigation into the endolithic bryozoan family Penetrantiidae
Fig. 14 Histological semi thin cross sections through the lophophore and tentacles of the autozooids of six different penetrantiids. a Penetrantia concharum from Sweden. b P. cf. concharum from France. c P. parva from northern New Zealand. d Detail of cross section through tentacles of P. parva from northern New Zealand. e P. parva from southern New Zealand. f P. irregularis from southern New Zealand. g P. clionoides from Guam. h Penetrantia sp. from Japan. at atrium, bc body cavity, cae caecum, es esophagus, ftc frontal cilia, lc lateral cilia, pv proventriculus, t tentacle, ts tentacle sheath
Fig. 10 in Boring bryozoans: an investigation into the endolithic bryozoan family Penetrantiidae
Fig. 10 Schematic drawing based on Penetrantia concharum from Sweden. a Autozooid in longitudinal section from an oral view. b Autozooid in longitudinal section from a lateral view with the anal side on the right. c Gonozooid in longitudinal section from a lateral view with the anal side on the right. Blue: lophophore, green: digestive system, red: musculature, orange: duplicature bands. a anus, at atrium, bc body cavity, bch brood chamber, bp brood chamber plug, bpm brood chamber plug muscle, c
Fig. 11 in Boring bryozoans: an investigation into the endolithic bryozoan family Penetrantiidae
Fig. 11 Schematic drawing of all members of the family Penetrantiidae. In the upper row are the autozooids and below the corresponding gonozooid where information was available. a Penetrantia densa according to Silén (1946). b P. concharum from Sweden. c P. brevis according to Silén (1946). d P. parva from northern New Zealand. e P. sileni according to Soule (1950). f P. irregularis from southern
Fig. 6 in Boring bryozoans: an investigation into the endolithic bryozoan family Penetrantiidae
Fig. 6 Overview of the stolonal network in the family Penetrantiidae. a Scanning electron microscopic image of Penetrantia cf. parva from New Caledonia. Stolonal network marked in green. b Scanning electron microscopic image of Penetrantia sp. from Japan. Stolon marked in green. c Stereomicroscopic image of a young colony of P. cf. concharum from France. d Scanning electron microscopic image of a resin cast of P. parva from northern New Zealand. ap aperture, az autozooid, anc ancestrula, gz gonozooid, op operculum, st stolon, tu tubulet
Fig. 15 in Boring bryozoans: an investigation into the endolithic bryozoan family Penetrantiidae
Fig. 15 Histological semi thin sections of the digestive tract in Penetrantia. a Longitudinal section through an autozooid of P. concharum from Sweden. b Longitudinal section through the proventriculus and caecum of P. concharum from Sweden. c Proventriculus of P. concharum from Sweden. d Proventriculus P. cf. concharum from France. e Longitudinal section through intestine of P. concharum from Sweden. f Cross section through the pharynx of P. concharum from Sweden. g Cross section through a brown body in P. concharum from Sweden. a anus, at atrium, bb brown body, bc body cavity, bw body wall, cae caecum, es esophagus, exc exterior cuticle, int intestine, l lophophore, lb lophophoral base, oo operculum occlusor, op operculum, ph pharynx, pv proventriculus, pvm parieto-vestibular muscle, rm retractor muscle, ts tentacle sheath, v vestibulum, vw vestibular wall
Fig. 4 in Boring bryozoans: an investigation into the endolithic bryozoan family Penetrantiidae
Fig. 4 Stereomicroscopic overview of colonies and apertures of Penetrantia parva and P. irregularis from Southern New Zealand within the same fragment of undetermined bivalve shell. a Overview of outer shell surface with P. irregularis and sponge borings. b Over-
Fig. 5 in Boring bryozoans: an investigation into the endolithic bryozoan family Penetrantiidae
Fig. 5 Stereomicroscopic overview of colonies and apertures. a–d Penetrantia clionoides from Guam in Drupa morum Röding, 1798. e–g Penetrantia sp. from Japan in Japeuthria ferrea (Reeve, 1847). a Overview of Drupa morum shell. Square marks area of magnification. b Detailed overview of borings close to aperture of shell. c Close-ups of apertures with opercula. d Stolon with tubulets and developing bud. e Overview of live Japeuthria ferrea shell. Square marks area of magnification. f Detailed overview of borings close to aperture of shell. g Close-ups of apertures and tubulets. ap aperture, b bud, op operculum, st stolon, tu tubulet
Fig. 8 in Boring bryozoans: an investigation into the endolithic bryozoan family Penetrantiidae
Fig. 8 Stolon morphology of the family Penetrantiidae. a–d Stereomicroscopic images of stolons and tubulets of Penetrantia sp. from Japan after decalcification of substrate. d Sac zooid in Penetrantia concharum from Sweden. e Histological semi thin section through the peduncle of P. clionoides from Guam. f Histological semi thin section through the peduncle of Penetrantia sp. from Japan. g Histological semi thin cross section through the stolon of P. concharum from Sweden. h Histological semi thin cross section through the stolon of Penetrantia sp. from Japan. i Adventitious stolon connecting to an autozooid in P. concharum from Sweden. az autozooid, bc body cavity, pc pore complex, s septum, st stolon, sz sac zooid, ts tentacle sheath, tu tubulet
Fig. 22 in Boring bryozoans: an investigation into the endolithic bryozoan family Penetrantiidae
Fig. 22 Scanning electron microscopic images of resin casts of gonozooids in four different penetrantiids. a Penetrantia sp. from Spain. b P. irregularis from southern New Zealand. c–d P. parva from northern New Zealand. e–f Penetrantia sp. from Japan. ast adventitious stolon, bch brood chamber, op operculum, ped peduncle, st stolon, zt zooidal tube
Fig. 17 3D in Boring bryozoans: an investigation into the endolithic bryozoan family Penetrantiidae
Fig. 17 3D-reconstruction based on semi thin section series of three different penetrantiids. a–d Penetrantia cf. concharum from northern France. e–h P. parva from northern New Zealand. i–l Penetrantia sp. from Japan. a, e, i Oral perspective. b, f, j Lateral perspective with the anal side on the right. c, g, k Anal perspective. d, h, l Lateral perspective with the anal side on the left. Blue: lophophore, green: digestive system, red: musculature, orange: duplicature bands. a anus, cae caecum, db duplicature band, es esophagus, int intestine, l lophophore, lb lophophoral base, oo operculum occlusor, op operculum, ph pharynx, pv proventriculus, pvm parieto-vestibular muscle, py pylorus, rm retractor muscle
Fig. 13 in Boring bryozoans: an investigation into the endolithic bryozoan family Penetrantiidae
Fig. 13 Histological semi thin sections through the orifice and vestibular area of four different penetrantiids. a–b Penetrantia cf. concharum from France. c–d P. concharum from Sweden. e P. parva from Northern New Zealand. f Stereomicroscopic image of an autozooid of Penetrantia sp. from Japan. g–h Penetrantia sp. from Japan. ap aperture, at atrium, bc body cavity, c collar, d diaphragm, exc exterior cuticle, ic inner cuticle, op operculum, pd parieto-diaphragmatic muscle, ped peduncle, ply polypide, pvm parieto-vestibular muscle, s septum, st stolon, t tentacle, ts tentacle sheath, v vestibulum, vl vestibular lip, vw vestibular wall
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