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64 results for “Anomalodesmata”
Figure 10. Spheniopsis brasiliensis. A in The organs of prey capture and digestion in the miniature predatory bivalve Spheniopsis brasiliensis (Anomalodesmata: Cuspidarioidea: Spheniopsidae) expose a novel life-history trait
Figure 10. Spheniopsis brasiliensis. A transverse section through the heart. AM, Amoebocyte; AU, auricle; PE, pericardium; PEG, pericardial gland; R, rectum; SM, suspensory membrane; V, ventricle.
Figure 3. Spheniopsis brasiliensis. A in The organs of prey capture and digestion in the miniature predatory bivalve Spheniopsis brasiliensis (Anomalodesmata: Cuspidarioidea: Spheniopsidae) expose a novel life-history trait
Figure 3. Spheniopsis brasiliensis. A ventral view of the septum, foot and mouth. BG, Byssal groove; F, foot; F(T), 'toe' of foot; M, mouth; SE, septum; SEM, margin of septal membrane; SEP(1),(2),(3),(4), septal pores.
Figure 1 in The organs of prey capture and digestion in the miniature predatory bivalve Spheniopsis brasiliensis (Anomalodesmata: Cuspidarioidea: Spheniopsidae) expose a novel life-history trait
Figure 1. Spheniopsis brasiliensis. SEM views of the siphonal apparatus. (A) Posterior view of the exhalant and inhalant siphons, with three and four siphonal papillae, respectively. (B) Higher magnification view of a single siphonal papilla with a terminal array of sensory cilia. CI, Cilia; ES, exhalant siphon; IS, Inhalant siphon; SP, sensory papilla; SPB, base of sensory papillae.
Figure 9. Spheniopsis brasiliensis. A in The organs of prey capture and digestion in the miniature predatory bivalve Spheniopsis brasiliensis (Anomalodesmata: Cuspidarioidea: Spheniopsidae) expose a novel life-history trait
Figure 9. Spheniopsis brasiliensis. A transverse section through the pedal ganglia and the statocysts. PEGA, Pedal ganglia; STAT, statocyst; STL, statolith.
Figure 5 in The organs of prey capture and digestion in the miniature predatory bivalve Spheniopsis brasiliensis (Anomalodesmata: Cuspidarioidea: Spheniopsidae) expose a novel life-history trait
Figure 5. Spheniopsis brasiliensis. Transverse sections through the (A) oesophagous; (B) crystalline style sac; (C) mid gut; (D) hind gut; and (E) rectum, all drawn to the same scale. CC, Collagen coat; CS, crystalline style.
Figure 8. Spheniopsis brasiliensis. A transverse section through a in The organs of prey capture and digestion in the miniature predatory bivalve Spheniopsis brasiliensis (Anomalodesmata: Cuspidarioidea: Spheniopsidae) expose a novel life-history trait
Figure 8. Spheniopsis brasiliensis. A transverse section through a single digestive tubule. AM, Amoebocyte; CRC, crypt cell; DC, digestive cell.
Figure 4. Spheniopsis brasiliensis. A in The organs of prey capture and digestion in the miniature predatory bivalve Spheniopsis brasiliensis (Anomalodesmata: Cuspidarioidea: Spheniopsidae) expose a novel life-history trait
Figure 4. Spheniopsis brasiliensis. A transverse section through the stomach in the region of the conjoined style sac and mid gut. CS, Crystalline style; CSMG, conjoined style sac and mid gut; CSS, crystalline style sac; FIPI, fragments of ingested prey; GS, gastric shield; MG, mid gut; SC, secretory cells.
Figure 7 in The organs of prey capture and digestion in the miniature predatory bivalve Spheniopsis brasiliensis (Anomalodesmata: Cuspidarioidea: Spheniopsidae) expose a novel life-history trait
Figure 7. Spheniopsis brasiliensis. Histological sections through the visceral mass and ingested prey items. (A) A transverse section through the stomach with ingested prey items inside it. (B, C) The remains of captured and ingested ostracods. (D) The skeletal remains of an unknown prey item. CSS, Crystalline style sac; GS, gastric shield; IPI, ingested prey item; ST, stomach.
Figure 12. Spheniopsis brasiliensis. A section through a in The organs of prey capture and digestion in the miniature predatory bivalve Spheniopsis brasiliensis (Anomalodesmata: Cuspidarioidea: Spheniopsidae) expose a novel life-history trait
Figure 12. Spheniopsis brasiliensis. A section through a portion of a gonadial follicle. C, Cuticle; DN, dividing nucleus; DO, developing oocyte; EO, encapsulated oocyte; GE, germinal epithelium; N, nucleus; RT, regressing testes; STA, stalk; SPZ, spermatozoan; Y, yolk.
РИС. 6. Распространение Cuspidaria trosaetes Dall, 1925 (черные линии), отдельные находки отмечены символами раЗных цветов: голубой, типовое местонахоЖдение [Dall, 1925]; красный, Живые ЭкЗемпляры (наши данные); синий, Живой ЭкЗемпляр [Belan, Belan, 2008, как "C. glacialis"]; Зеленый, пустые раковины [Lutaenko, 2009]; Желтый, находка под вопросом [Lee, Kim, 2002, как C. (C.) obtusirostris]. in New records of Cuspidaria trosaetes Dall, 1925 (Bivalvia: Anomalodesmata: Cuspidariidae) in the Sea of Japan with notes on the genus Nordoneaera
РИС. 6. Распространение Cuspidaria trosaetes Dall, 1925 (черные линии), отдельные находки отмечены символами раЗных цветов: голубой, типовое местонахоЖдение [Dall, 1925]; красный, Живые ЭкЗемпляры (наши данные); синий, Живой ЭкЗемпляр [Belan, Belan, 2008, как "C. glacialis"]; Зеленый, пустые раковины [Lutaenko, 2009]; Желтый, находка под вопросом [Lee, Kim, 2002, как C. (C.) obtusirostris].
FIG. 1 in New records of Cuspidaria trosaetes Dall, 1925 (Bivalvia: Anomalodesmata: Cuspidariidae) in the Sea of Japan with notes on the genus Nordoneaera
FIG. 1. Shell measurements: L – shell length; H – height; R – rostrum length; P – distance from beak to posterior end of rostrum.
Figure 10. Hinge architecture. A in Reconstructing the Anomalodesmata (Mollusca: Bivalvia): morphology and molecules
Figure 10. Hinge architecture. A, Pandora patula; B, Laternula constricta; C, Myochama anomioides; D, Cleidothaerus albidus; E, Lyonsiella formosa; F, Poromya buttoni; G, Euciroa galatheae; H, Cuspidaria undata. A–D, F, G redrawn from Prezant (1998), E redrawn from Allen & Turner (1974), H redrawn from Poutiers (1984).
Figure 9 in Reconstructing the Anomalodesmata (Mollusca: Bivalvia): morphology and molecules
Figure 9. Scanning electron micrograph of (A) spicule on the outer surface of the juvenile shell of Brechites vaginiferus (Clavagellidae). Scale bar = 2 µm. B, arenophilic threads with associated debris on the external surface of the shell of Lyonsia sp. Scale bar = 50 µm.
Figure 8 in Reconstructing the Anomalodesmata (Mollusca: Bivalvia): morphology and molecules
Figure 8. Scanning electron micrographs of different anomalodesmatan shell microstructures. A, sheet nacre (Cleidothaerus albidus). Scale bar = 5 µm; B, coarse homogeneous (Entodesma saxicola). Scale bar = 20 µm; C, fine homogeneous (Cuspidaria cuspidata). Scale bar = 2 µm.
Figure 7 in Reconstructing the Anomalodesmata (Mollusca: Bivalvia): morphology and molecules
Figure 7. Key characters mapped on Maximum Likelihood tree topology constrained for monophyletic septibranchs in Figure 6. Filled diamonds indicate nonhomoplastic character state transitions, open diamonds indicate convergent changes or reversals [homoplastic changes]. Characters: 1, homogeneous shell microstructures, 0 – absent, 1 – fine crystals (<1 µm in diameter), 2 – coarse crystals (> 5 µm); 2, spicules, 0 – absent, 1 – present on juvenile shell only, 2 – present on adult shell; 3, chondrophores, 0 – absent, 1 – present; 4, lithodesma, 0 – absent, 1 – present in anterior position, 2 – present in more ventral position, 3 – only present in juvenile; 5, fourth pallial aperture, 0 – absent, 1 – present; 6, arenophilic glands, 0 – absent, 1 – present; 7, septum, 0 – absent, 1 – thin, 2 – muscular; 8, stomach type of Purchon (1987a), 0 – type IV, 1 – type II, 2 – type V.
Figure 5. 18S in Reconstructing the Anomalodesmata (Mollusca: Bivalvia): morphology and molecules
Figure 5. 18S rRNA Bayesian tree. Estimated marginal likelihood = −19982.61 (arithmetic mean); means of model parameters: gamma shape parameter for four categories of site rates alpha = 0.392537, proportion of invariable site = 0.195309, nucleotide frequencies: ~A = 0.231486, ~C = 0.250544, ~G = 0.27846, ~T = 0.239511, relative rate parameters: r(AC) = 0.953689, r(AG) = 1.736795, r(AT) = 0.854372, r(CG) = 1.204843, r(CT) = 2.892416, r(GT) = 1.0. Figures are posterior probabilities <0.95; bold branches have = 0.95. Arrows indicate the 'thraciid' (T) and 'lyonsiid' (L.) lineages.
Figure 4. 18S rRNA strict consensus tree from 12 in Reconstructing the Anomalodesmata (Mollusca: Bivalvia): morphology and molecules
Figure 4. 18S rRNA strict consensus tree from 12 most parsimonious trees (3228 steps, CI = 0.4786, RC = 0.3076). Above branches are 'bootstrap proportion | decay index', below are 'Bayesian posterior probability | ML-puzzling proportion'. Arrows indicate the 'thraciid' (T) and 'lyonsiid' (L) lineages.
Figure 6 in Reconstructing the Anomalodesmata (Mollusca: Bivalvia): morphology and molecules
Figure 6. Maximum Likelihood tree found with the constraint for monophyletic septibranchs applied. The –lnL of 19955.13 compares to 19953.80 of the unconstrained ML tree (delta –lnL = 1.33, p = 0.448). Estimated model parameters: gamma shape parameter for four categories of site rates alpha = 0.383579, proportion of invariable site = 0.189587, empirical nucleotide frequencies: ~A = 0.24431, ~C = 0.223609, ~G = 0.2775, ~T = 0.2421, relative rate parameters: r(AC) = 0.97176, r(AG) = 1.68869, r(AT) = 0.80549, r(CG) = 1.29472, r(CT) = 3.04142, r(GT) = 1.0. Arrows indicate the 'thraciid' (T) and 'lyonsiid' (L.) lineages.
Figure 2 in Reconstructing the Anomalodesmata (Mollusca: Bivalvia): morphology and molecules
Figure 2. Illustration of the range of morphologies displayed by extant anomalodesmatans. A, Laternula creccina (Laternulidae); B, Brechites vaginiferus (Clavagellidae); C, Cuspidaria cuspidata (Cuspidariidae); D, Myadora striata (Myochamidae). All scale bars = 10 mm.
Figure 3 in Reconstructing the Anomalodesmata (Mollusca: Bivalvia): morphology and molecules
Figure 3. Comparison of recently published phylogenetic trees based on morphological and molecular data.
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