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67 results for “Aplysia”
Fig. 4 in First Specimen Based Record of Anthessius cucullatus (Copepoda: Cyclopoida: Anthessiidae) Associated with Aplysia spp. (Gastropoda: Aplysiida: Aplysiidae) from Coastal Waters of Kagoshima, Southern Japan
Fig. 4. Anthessius cucullatus, adult male, NSMT-Cr 31493. A, Right antennule, posterior; B, left maxilliped, posterior; C, terminal endopodal segment of right leg 1, anterior; D, terminal endopodal segment of right leg 4, anterior; E, left leg 5, dorsal. Scale bars: A–D = 100 µm; E = 200 µm.
Fig. 2 in First Specimen Based Record of Anthessius cucullatus (Copepoda: Cyclopoida: Anthessiidae) Associated with Aplysia spp. (Gastropoda: Aplysiida: Aplysiidae) from Coastal Waters of Kagoshima, Southern Japan
Fig. 2. Anthessius cucullatus, adult female, NSMT-Cr 31493. A, Labrum, ventral; B, left mandible, posterior; C, left maxillule, anterior; D, left maxilla, posterior; E, right maxilliped, posterior; F, left leg 1, anterior; G, right leg 2, anterior. Scale bars: A = 50 µm; B–G = 100 µm.
Fig. 3 in First Specimen Based Record of Anthessius cucullatus (Copepoda: Cyclopoida: Anthessiidae) Associated with Aplysia spp. (Gastropoda: Aplysiida: Aplysiidae) from Coastal Waters of Kagoshima, Southern Japan
Fig. 3. Anthessius cucullatus, adult female, NSMT-Cr 31493 (A–C), adult male, NSMT-Cr 31493 (D, E). A, Left leg 3, anterior; B, right leg 4, anterior; C, right leg 5, dorsal; D, habitus, dorsal; E, urosome, ventral. Scale bars: A–C, E = 100 µm; D = 500 µm.
Fig. 5 in First Specimen Based Record of Anthessius cucullatus (Copepoda: Cyclopoida: Anthessiidae) Associated with Aplysia spp. (Gastropoda: Aplysiida: Aplysiidae) from Coastal Waters of Kagoshima, Southern Japan
Fig. 5. Coloration of fresh specimens of Anthessius cucullatus. A, Adult female, habitus, dorsal; B, adult male, habitus, dorsal; C, mating pair, showing adult male grasping urosome of adult female. Scale bars: 1 mm.
Fig. 1 in First Specimen Based Record of Anthessius cucullatus (Copepoda: Cyclopoida: Anthessiidae) Associated with Aplysia spp. (Gastropoda: Aplysiida: Aplysiidae) from Coastal Waters of Kagoshima, Southern Japan
Fig. 1. Anthessius cucullatus, adult female, NSMT-Cr 31493. A, Habitus, dorsal; B, urosome, dorsal; C, genital double somite, ventral; D, right caudal rami, dorsal; E, rostrum area, ventral; F, left antennule, posterior; G, left antenna, posterior. Scale bars: A, B = 200 µm; C–G = 100 µm.
Figure 3 in Designation of a Neotype for the Dwarf Sea Hare Aplysia concava G. B. Sowerby I, 1833, and a Review of the Status of Aplysia norfolkensis G. B. Sowerby II, 1869 (Mollusca: Heterobranchia)
Figure 3. Light microscope image of Aplysia norfolkensis shell, (a) dorsal view, (b) ventral view, specimen AMS C.55733, collected by Brazier, J., 25 June 1892, Bradleys Head, Port Jackson, Sydney, NSW, Australia. Photograph: M. Nimbs.
Figure 2 in Designation of a Neotype for the Dwarf Sea Hare Aplysia concava G. B. Sowerby I, 1833, and a Review of the Status of Aplysia norfolkensis G. B. Sowerby II, 1869 (Mollusca: Heterobranchia)
Figure 2. Original descriptions and figure illustrations of shells for Aplysia concava G. B. Sowerby I, 1833: vol. 2, p. 243, pl. 235, figs 24a,b; and Aplysia norfolkensis G. B. Sowerby II, 1869: vol. 17, p. 216, pl. 10, figs 42a,b. Sourced from Biodiversity Heritage Library, (see Sowerby I, 1833; Sowerby II, 1869).
Figure 1 in Designation of a Neotype for the Dwarf Sea Hare Aplysia concava G. B. Sowerby I, 1833, and a Review of the Status of Aplysia norfolkensis G. B. Sowerby II, 1869 (Mollusca: Heterobranchia)
Figure 1. Photograph of living neotype of Aplysia concava, specimen AMS C.574820, Newcastle, NSW, Australia, collected 14 December 2016, by Stephen D. A. Smith. Photograph: M. Nimbs.
Activity of individual neurons in the Aplysia buccal ganglion before and after in vitro operant conditioning
<p>Dataset for Costa RM, Baxter DA, Byrne JH (2021) Neuronal population activity dynamics reveal a low-dimensional signature of operant learning in Aplysia. Commun Biol. BioRxiv preprint 2021.12.06.471434</p> <p>Data collected by using voltage-sensitive dye imaging to capture population-wide, single neuron resolution activity in the isolated <em>Aplysia</em> buccal ganglion before and after <em>in vitro</em> operant conditioning. Data for 7 contingently trained and 7 yoked control animals includes population spike trains, timing of buccal motor patterns, ganglia images, and pixel coordinates for each neuron (kernels). In addition, the data includes results of the non-negative matrix factorization analyses described in the article.</p> <p>The dataset is organized as a Matlab structure variable.</p>
Activity of individual neurons in the Aplysia buccal ganglion before and after in vitro operant conditioning
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Data from: Soft-surface grasping: radular opening in Aplysia californica
Grasping soft, irregular material is challenging both for animals and robots. The feeding systems of many animals have adapted to this challenge. In particular, the feeding system of the marine mollusk, Aplysia californica, a generalist herbivore, allows it to grasp and ingest seaweeds of varying shapes, textures and toughness. On the surface of Aplysia's grasper is a structure known as the radula, a thin flexible cartilaginous sheet with fine teeth. Previous in vitro studies suggested that an intrinsic muscle, I7, is responsible for opening the radula. Lesioning I7 in vivo does reduce opening width, but does not prevent animals from grasping and ingesting food. New in vitro studies demonstrate that a set of fine muscle fibers on the ventral surface of the radula, the subradular fibers (SRFs), mediate opening movements even if the I7 muscles are absent. Both in vitro and in vivo lesions demonstrate that removing the subradular fibers leads to profound deficits in radular opening, and significantly reduces feeding efficiency. A theoretical biomechanical analysis of the actions of the subradular fibers suggests that they induce the radular surface to open around a central crease in the radular surface and to arch the radular surface, allowing it to softly conform to irregular material. A three-dimensional model of the radular surface, based on in vivo observations and magnetic resonance imaging of intact animals, provides support for the biomechanical analysis. These results suggest how a soft grasper can work during feeding, and suggest novel designs for artificial soft graspers.
FIGURE 5. A, Dondice occidentalis. B, Godiva rubrolineata. C, Favorinus auritulus. D, Phidiana lynceus. E, Spurilla sargassicola. F, Eubranchus conicla. G, Scyllaea pelagica. H, Doto casandra. I, Chelidonura cubana. J, Aplysia parvula. K, Syphonota geographica. L, Pleurobranchus areolatus. M, Elysia papillosa. N in The opisthobranch gastropods (Mollusca: Heterobranchia) from Venezuela: an annotated and illustrated inventory of species
FIGURE 5. A, Dondice occidentalis. B, Godiva rubrolineata. C, Favorinus auritulus. D, Phidiana lynceus. E, Spurilla sargassicola. F, Eubranchus conicla. G, Scyllaea pelagica. H, Doto casandra. I, Chelidonura cubana. J, Aplysia parvula. K, Syphonota geographica. L, Pleurobranchus areolatus. M, Elysia papillosa. N, Thuridilla malaquita. Ο-P, Placida cremoniana. Q, Okenia zoobotryon. I-Q, Sea s1ugs in their natura1 envirοnment (Gaby Carias).
Organelle calcium-derived voltage oscillations in pacemaker neurons drive the motor program for food-seeking behavior in Aplysia
<p><span>An atypical neuronal pacemaker mechanism, based on rhythmic intracellular calcium store release in an identified pair of interneurons (B63) and resulting oscillation of the neurons' membrane potential, acts as an autonomous releaser for the irregular occurrences of the <span>motor program for food-seeking behavior</span> in Aplysia. The rhythmic variations of the membrane potential in B63 neurons were analyzed by Fast Fourier Transform (FFT) analysis in a cycle period bandwidth of 512 s to 8 s. The resulting power spectral density periodograms were used to identify oscillation periods of peak magnitude. The periodograms were computed from the FFT frequency spectrograms by converting the frequency band (in Hz) to its reciprocal, period (in secs). These analysis were performed in isolated buccal ganglia preparations bathed in artifical sea water (ASW), in 'Low Ca+Co' saline to block chemical synapses, or in 'Low Ca+Co' saline and after an intracellular injection of organelle membrane calcium channel blocker heparin into either the bilateral B63 or B31 neurons. The oscillations of B63 membrane potential that were recorded in ASW persisted in 'Low Ca+Co', but were suppressed after heparin injection specifically into B63.</span></p>
FIGURE 32 in Anatomical redescription of Aplysia (Aplysia) nigra and Aplysia (Varria) inca (Mollusca: Heterobranchia) with comments on Aplysia from Peru
FIGURE 32. Nervous system of Aplysia inca. (A) Dorsal view of the nervous system. (B) Ventral view of the same. (C) Bucal ganglia. (D) Pedal ganglia. (E) Cerebral ganglia. (F) Abdominal ganglia.
FIGURE 30 in Anatomical redescription of Aplysia (Aplysia) nigra and Aplysia (Varria) inca (Mollusca: Heterobranchia) with comments on Aplysia from Peru
FIGURE 30. Details of the digestive system of Aplysia inca. (A) Gizzard and filter chamber. (B-D) Large gizzard plates. (E-F) Small gizzard plates. (G) Gastric hook. (H) Salivary gland ducts. (I) Digestive caecum.
FIGURE 29 in Anatomical redescription of Aplysia (Aplysia) nigra and Aplysia (Varria) inca (Mollusca: Heterobranchia) with comments on Aplysia from Peru
FIGURE 29. Digestive system of Aplysia inca. (A) Lateral view of the digestive system. (B) Digestive system open. (C) Intestine. (D) Oral cavity.
FIGURE 27 in Anatomical redescription of Aplysia (Aplysia) nigra and Aplysia (Varria) inca (Mollusca: Heterobranchia) with comments on Aplysia from Peru
FIGURE 27. Buccal mass and odontophore muscles of Aplysia inca. (A) Dorsal view of the buccal mass. (B) Ventral view of the same. (C) Lateral view of the same. (D) Lateral view of the odontophore. (E) Posterior view of the same. (F) Ventral view of the same. (G) Frontal view of the same. (H) Odontophore open showing the odontophore cartilagues.
FIGURE 23 in Anatomical redescription of Aplysia (Aplysia) nigra and Aplysia (Varria) inca (Mollusca: Heterobranchia) with comments on Aplysia from Peru
FIGURE 23. Ventral and dorsal view of the shell of Aplysia inca. (A) Ancón (LaBSIM 15.06-0022.1). (B) Chorrillos (LaBSIM 15.06-0025.4). (C) Pucusana (LaBSIM 15.06-0029.2). (D) Barranco (LaBSIM 15.06-0032.6). (E) Huanchaco (LaBSIM 15.06- 0034). (F) Laguna Grande (LaBSIM 15.06-0005).
FIGURE 31 in Anatomical redescription of Aplysia (Aplysia) nigra and Aplysia (Varria) inca (Mollusca: Heterobranchia) with comments on Aplysia from Peru
FIGURE 31. Reproductive system of Aplysia inca. (A) Retracted penis sheath. (B) Penis sheath open, Chorrillos (LaBSIM 15.06-0028). (C) Penis sheath open, Pucusana (LaBSIM 15.06-0030.2). (D) Penis sheath open, Ancón (LaBSIM 15.06-0022.1). (E) Transverse section of penis. (F) Hermaphrodite reproductive system.
FIGURE 28 in Anatomical redescription of Aplysia (Aplysia) nigra and Aplysia (Varria) inca (Mollusca: Heterobranchia) with comments on Aplysia from Peru
FIGURE 28. Radula of Aplysia inca. (A-B) Chorrillos (LaBSIM 15.06-0025.2). (C) Pucusana (LaBSIM 15.06-0030.2). (D) Ancón (LaBSIM 15.06-0022.2). (E) Laguna Grande (LaBSIM 15.06-0005). r, rachidian tooth; +1 to +30, lateral tooth.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
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