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91 results for “Lepidopleurida”
FIGURE 30. Leptochiton peruvianus n in Shallow and deep-sea chitons of the genus Leptochiton Gray, 1847 (Mollusca: Polyplacophora: Lepidopleurida) from Peruvian and Chilean waters
FIGURE 30. Leptochiton peruvianus n. sp. Holotype, (ZISP 2209). Peru-Chile Trench, RV Akademik Kurchatov, st.274. BL—5.0 mm. A. Valve I, dorsal view; B. Valve IV, ventral view; C. Valve VIII, dorsal view; D. Valve V, dorsal view; E. Valve V, detail of tegmentum surface in between central and lateral areas; F. Valve VIII, detail of tegmentum surface near mucro. Scale bar 1 mm (A–D), 100 µm (E, F).
FIGURE 18 in Shallow and deep-sea chitons of the genus Leptochiton Gray, 1847 (Mollusca: Polyplacophora: Lepidopleurida) from Peruvian and Chilean waters
FIGURE 18. Leptochiton sykesi (Sowerby III, 1905), (ZISP 2266). South Africa, near Cape Town, one specimen deposited in ZISP, BL—18.0 mm. A. Dorsal, marginal and ventral scales and needles; B, D. Central portion of radula; C. Dorsal scales and needles.
FIGURE 11 in Shallow and deep-sea chitons of the genus Leptochiton Gray, 1847 (Mollusca: Polyplacophora: Lepidopleurida) from Peruvian and Chilean waters
FIGURE 11. Leptochiton laurae Schwabe & Sellanes, 2010, (ZISP 2262). South Shetland Ids., RV Polarstern, st.145, BL— 10.0 mm. A. Sutural needle; B, C. Dorsal scales; D. Marginal needle; E, F. Ventral scales; G. Head of major lateral tooth; H. Valve V, rostral view; I. Valve VIII, lateral view; J. Aesthete group in central area. Scale bar 100 µm (A–G) and 1.0 mm (H, I).
FIGURE 10 in Shallow and deep-sea chitons of the genus Leptochiton Gray, 1847 (Mollusca: Polyplacophora: Lepidopleurida) from Peruvian and Chilean waters
FIGURE 10. Leptochiton laurae Schwabe & Sellanes, 2010, (ZISP 2262). South Shetland Ids., RV Polarstern, st.145, BL— 10.0 mm. A. Dorsal, marginal and ventral scales and needles; B. Central portion of radula.
FIGURE 9 in Shallow and deep-sea chitons of the genus Leptochiton Gray, 1847 (Mollusca: Polyplacophora: Lepidopleurida) from Peruvian and Chilean waters
FIGURE 9. Leptochiton laurae Schwabe & Sellanes, 2010, (ZISP 2262). South Shetland Ids., RV Polarstern, st.145, BL—10.0 mm. A. Valve I, dorsal view; B. Valve V, dorsal view; C. Valve VIII, dorsal view; D. Valve V, detail of tegmentum surface of central area; E. Valve VIII, lateral view.
FIGURE 8 in Shallow and deep-sea chitons of the genus Leptochiton Gray, 1847 (Mollusca: Polyplacophora: Lepidopleurida) from Peruvian and Chilean waters
FIGURE 8. Preserved specimens of three species. A. Leptochiton laurae Schwabe & Sellanes, 2010, (ZISP 2259). Chile, near Valdivia, BL—16.0 mm, dorsal and lateral views; B. L. laurae, (ZISP 2260). South Orkney Ids, RV Evrika, dredge 32, BL— 13.0 mm, dorsal and lateral views; C. L. laurae, (ZISP 2261). South Shetland Ids., RV Polarstern, st.149, BL—10 mm, dorsal and lateral views; D. Leptochiton longibranchiae n. sp., paratype, (ZISP 2213) BL—9.0 mm, ventral view; E. Leptochiton peruvianus n. sp., paratype, (ZISP 2211), BL—6.5 mm, dorsal and lateral views. Scale bars 1.0 mm.
FIGURE 6. Leptochiton medinae Plate, 1899 in Shallow and deep-sea chitons of the genus Leptochiton Gray, 1847 (Mollusca: Polyplacophora: Lepidopleurida) from Peruvian and Chilean waters
FIGURE 6. Leptochiton medinae Plate, 1899, (ZISP 2258). Magellan Strait, RV Victor Hensen st.884, BL—5 mm. A. Dorsal, marginal and ventral scales; B. Central portion of radula; C. Sutural and dorsal needles and scales; D. Dorsal scales.
FIGURE 7. Leptochiton medinae Plate, 1899 in Shallow and deep-sea chitons of the genus Leptochiton Gray, 1847 (Mollusca: Polyplacophora: Lepidopleurida) from Peruvian and Chilean waters
FIGURE 7. Leptochiton medinae Plate, 1899, (ZISP 2258). Magellan Strait, RV Victor Hensen st.884, BL—5 mm. A. Sutural needle; B. Dorsal scale; C. Marginal needle; D. Marginal scale; E. Ventral scale; F. Central and first lateral teeth; G. Heads of major lateral tooth; H. Aesthete group in central area. Scale bar 100 µm (A–G).
FIGURE 3. Leptochiton kerguelensis Haddon, 1864 in Shallow and deep-sea chitons of the genus Leptochiton Gray, 1847 (Mollusca: Polyplacophora: Lepidopleurida) from Peruvian and Chilean waters
FIGURE 3. Leptochiton kerguelensis Haddon, 1864, (ZISP 2257). Beagle Channel, RV Victor Hensen, st.1213. BL—4.0 mm. A, B. Central portion of radula.
FIGURE 2. Leptochiton kerguelensis Haddon, 1864 in Shallow and deep-sea chitons of the genus Leptochiton Gray, 1847 (Mollusca: Polyplacophora: Lepidopleurida) from Peruvian and Chilean waters
FIGURE 2. Leptochiton kerguelensis Haddon, 1864, (ZISP 2257). Beagle Channel, RV Victor Hensen, st.1213. BL—4.0 mm. A. Tegmentum of valve V; B, C. Armature of girdle; D. dorsal, marginal and ventral scales.
FIGURE 5. Leptochiton medinae Plate, 1899 in Shallow and deep-sea chitons of the genus Leptochiton Gray, 1847 (Mollusca: Polyplacophora: Lepidopleurida) from Peruvian and Chilean waters
FIGURE 5. Leptochiton medinae Plate, 1899, (ZISP 2258). Magellan Strait, RV Victor Hensen st.884, BL—5 mm. A. Valve I, dorsal view; B. Valve V, dorsal view; C. Valve VIII, dorsal view; D. Valve IV, ventral view; E. Valve V, detail of tegmentum surface of central area; F. Valve VIII, lateral view; G. Valve V, rostral view.
FIGURE 4. Leptochiton kerguelensis Haddon, 1864 in Shallow and deep-sea chitons of the genus Leptochiton Gray, 1847 (Mollusca: Polyplacophora: Lepidopleurida) from Peruvian and Chilean waters
FIGURE 4. Leptochiton kerguelensis Haddon, 1864, (ZISP 2257). Beagle Channel, RV Victor Hensen, st.1213. BL—4.0 mm. A. Sutural needle; B. Sutural scale; C. Dorsal scale; D. Marginal needle; E. Marginal scale; F. Ventral scale; G. Central and two lateral teeth; H. Heads of major lateral tooth; I. Aesthete in central area. Scale bar 100 µm (A–H).
FIGURE 1. Leptochiton kerguelensis Haddon, 1864 in Shallow and deep-sea chitons of the genus Leptochiton Gray, 1847 (Mollusca: Polyplacophora: Lepidopleurida) from Peruvian and Chilean waters
FIGURE 1. Leptochiton kerguelensis Haddon, 1864, (ZISP 2257). Beagle Channel, RV Victor Hensen, st.1213. BL—4.0 mm. A. Complete specimen, dorsal view; B. Complete specimen, lateral view; C. Valve I, dorsal view; D. Valve V, dorsal view; E. Valve VIII, dorsal view; F. Valve IV, ventral view; G. Valve VIII, lateral view; H. Valve V, rostral view.
Figure 7 in The deep-sea chiton Nierstraszella (Mollusca: Polyplacophora: Lepidopleurida) in the Indo-West Pacific: taxonomy, morphology and a bizarre ectosymbiont
Figure 7. Distribution of Nierstraszella andamanica comb. nov., nom. rev. (grey dots) and N. lineata (black circles) in the Solomon Islands, collected by the ''Salomon 1'' (partim) and ''Salomon 2'' expeditions. Grey dots with black outlines indicate co-occurrence of the two species. Pie charts for each collecting station indicate the fraction (in black) of N. andamanica specimens colonized with the epibiotic bryozoan Pseudobathyalozoon. Inset shows the map area relative to the island of New Guinea and surrounding islands.
Figure 6 in The deep-sea chiton Nierstraszella (Mollusca: Polyplacophora: Lepidopleurida) in the Indo-West Pacific: taxonomy, morphology and a bizarre ectosymbiont
Figure 6. Distribution of Nierstraszella andamanica comb. nov., nom. rev. (grey dots) and N. lineata (black circles) in the Philippines, collected by the Panglao 2005 expedition. Grey dots with black outlines indicate co-occurrence of the two species. Pie charts for each collecting station indicate the fraction (in black) of N. andamanica specimens colonized with the epibiotic bryozoan Pseudobathyalozoon. Inset shows the map area relative to the island of New Guinea and surrounding islands.
Figure 3 in The deep-sea chiton Nierstraszella (Mollusca: Polyplacophora: Lepidopleurida) in the Indo-West Pacific: taxonomy, morphology and a bizarre ectosymbiont
Figure 3. Nierstraszella lineata. (A) Valves I, II and VIII (with periostracum intact), white lines indicate original shape of apophyses broken on specimen during preparation, scale bar is 1 mm, specimen RMNH MOL.K.4966 (Philippines, 13°039 S 122°379 E, 1030–1190 m); (B) close up of texture on valve I shown in (A); (C) close up of texture on valve II shown in (A); (D) dorsal girdle
Figure 1 in The deep-sea chiton Nierstraszella (Mollusca: Polyplacophora: Lepidopleurida) in the Indo-West Pacific: taxonomy, morphology and a bizarre ectosymbiont
Figure 1. Two species of Nierstraszella; N. andamanica comb. nov., nom. rev. (top) and N. lineata (bottom). Note the raised texture created by periostracum pustules on N. lineata, and the abraded patches (white) where periostracum as rubbed away on N. andamanica. Scale bar applies to both images. Specimens are from the Solomon Islands, ''Salomon 2'' sta. CP2264 (N. andamanica) and sta. CP2226 (N. lineata).
Figure 2 in The deep-sea chiton Nierstraszella (Mollusca: Polyplacophora: Lepidopleurida) in the Indo-West Pacific: taxonomy, morphology and a bizarre ectosymbiont
Figure 2. Scanning electron micrograph of aesthete cluster morphology in Nierstraszella, where valve periostracum has been removed by bleach; N. andamanica comb. nov., nom. rev. (top) and N. lineata (bottom). Specimens of N. lineata are from Solomon Islands, ''Salomon 2'' sta. CP2226 (top left) and from Japan (identified as Leptochiton diomedeae), RMNH MOL.HLS.2010 (top right). Specimens of N. andamanica are from Solomon Islands, ''Salomon 2'' sta. CP2264 (bottom left) and sta. CP2280 (bottom right).
Figure 5 in The deep-sea chiton Nierstraszella (Mollusca: Polyplacophora: Lepidopleurida) in the Indo-West Pacific: taxonomy, morphology and a bizarre ectosymbiont
Figure 5. Position of the epibiotic ctenostome bryozoans colonizing the pallial cavity of Nierstraszella andamanica comb. nov., nom. rev. with photograph of pallial cavity (left) and drawing (right). Line drawing of ventral surface of a chiton indicates the area shown in detail. Line drawing from photograph of pallial cavity shows bryozoans (zooids in grey) with the presumed position of the stolon (dotted line); black outline trapezoids indicate gill tips.
Figure 4 in The deep-sea chiton Nierstraszella (Mollusca: Polyplacophora: Lepidopleurida) in the Indo-West Pacific: taxonomy, morphology and a bizarre ectosymbiont
Figure 4. Nierstraszella andamanica comb. nov., nom. rev. (A) Valves I, II, and VIII (with periostracum intact), white lines indicate original shape of apophyses broken on specimen during preparation, scale bar is 1 mm, specimen RMNH MOL.HLS.2010 (Japan, Suruga Bay); (B) close up of texture on valve I shown in (A); (C) close up of texture on valve II shown
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