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82 results for “Maldives”
FIGURE 1 in Ontogenetic instars of Lepidacarus maafushiensis sp. nov. from the Maldives, with remarks on morphological ontogeny of Lohmanniidae (Acari, Oribatida)
FIGURE 1. Lepidacarus maafushiensis sp. nov., adult: A—dorsal view; B—ventral view (gnathosoma and legs except trochanters not shown). Scale bar 100 μm.
FIGURE 9 in Ontogenetic instars of Lepidacarus maafushiensis sp. nov. from the Maldives, with remarks on morphological ontogeny of Lohmanniidae (Acari, Oribatida)
FIGURE 9. Lepidacarus maafushiensis sp. nov., anogenital region of juvenile instars: A –protonymph; B—deutonymph; C— tritonymph. Scale bar 50 μm.
FIGURE 10 in Ontogenetic instars of Lepidacarus maafushiensis sp. nov. from the Maldives, with remarks on morphological ontogeny of Lohmanniidae (Acari, Oribatida)
FIGURE 10. Lepidacarus maafushiensis sp. nov., larva (A–C) and protonymph (D): A—leg I, without trochanter, left, paraxial view; B—leg II, without trochanter, left, paraxial view; C—leg III, without trochanter, left, antiaxial view; D—leg IV, without trochanter, right, antiaxial view. Scale bar 20 μm.
FIGURE 2 in A new species of the calcareous sponge genus Leuclathrina (Calcarea: Calcinea: Clathrinida) from the Maldives
FIGURE 2. Leuclathrina translucida sp. nov. A: Typical growth form in situ (holotype). The inset shows an opening at the end of an exhalant tube of another specimen, possibly an osculum; B: Specimen (SNSB-BSPG 30280) with a hanging growth form and smaller exhalant tubes. C: Detail of the outer sponge wall of the inhalant region with inhalant openings; C: Detail of the outer sponge wall of the exhalant tubes, showing the hexagonally arranged triactines around the translucent tissue areas (C-D: material fixed in 80 % ethanol); E-G: Section through the sponge wall at different regions of the sponge body; E: In the inhalant region the skeleton consists of several layers of tangential triactines, the choanosome is free of spicules; F: Transition between the inhalant and exhalant region: the choanosome gets thinner and is replaced by a layer of endopinacoderm. G: The thickness of the sponge wall is strongly reduced in the more distal parts of the exhalant tubes. H: Spicules (triactines); I: 3D reconstruction of the skeleton and the choanosome (coloured). Abbreviations: c= canal (inhalant or exhalant); ch= choanosome; enp= endopinacoderm; ex= exterior of the sponge wall; exh= exhalant body part; exp= exopinacoderm; inh= inhalant body part or inhalant opening; sk= skeleton.
FIGURE 3 in A new species of the calcareous sponge genus Leuclathrina (Calcarea: Calcinea: Clathrinida) from the Maldives
FIGURE 3. Histology of L. translucida sp. nov. (SNSB-BSPG 30279), decalcified: A: Section through the sponge wall including the outer skeletal layer, the choanosome and the atrial cavity; B: Detail of an inhalant opening leading to an inhalant canal; C: Detail of the outer skeletal layer, which is delimited by exopinacocytes on the external surface; only few cells occur in the mesohyl of this layer; D: Detail of the choanosome, with spherical choanocyte chambers and canals of the aquiferous system (inhalant or exhalant), the latter is lined by endopinacocytes. E: Choanoderm adjacent to the atrial cavity. The wall of the atrial cavity is lined by endopinacocytes. F: Section through the wall of an exhalant tube, consisting of an external layer of exopinacocytes and an internal layer of endopinacocytes, and a thin mesohyl layer in between (originally with a few spicules). Abbreviations: at: atrial cavity; c: canal (inhalant or exhalant); ch: choanocyte; chc: choanocyte chamber; enp: endopinacoderm; ex: external side of the sponge; exc: exhalant canal; exp: exopinacoderm; inc: inhalant canal; inh: inhalant opening; mc: mesohyl cell; me= mesohyl; sp: dissolved spicule.
FIGURE 1 in A new species of the calcareous sponge genus Leuclathrina (Calcarea: Calcinea: Clathrinida) from the Maldives
FIGURE 1. Sample localities (red dots) of Leuclathrina translucida sp. nov.: A: Location in the Indian Ocean (map generated with SimpleMappr, Shorthouse 2010); B: Location of the Lahviyani Atoll and the Fafuu Atoll in the Maldives; C: Detail of the type locality in the Lahviyani Atoll (1); D: Detail of the sample localities in the Fafuu Atoll. Dive sites: (2) Wallino, (3) Route 66 BIS, (4) Coral Garden, (5) Route 66, (6) Wall Street, (7) M&Ms, (8) Beyrufushi.
FIGURE 4 in A new species of the calcareous sponge genus Leuclathrina (Calcarea: Calcinea: Clathrinida) from the Maldives
FIGURE 4. Phylogenetic position (arrow) of Leuclathrina translucida sp. nov. within Calcinea (midpoint rooted Bayesian phylogeny). Posterior probability (BI) and bootstrap values of the Maximum Likelihood (ML) analysis are given at the nodes, respectively ('-'= node not present in ML tree, '<'= bootstrap values below 50). For undetermined species that probably belong to more recently established genera, the original genus affiliation is provided in brackets, '?' marks a sample of uncertain identification. The organisation of the aquiferous system of the species is provided (see legend in the inset).
Maldives and Laccadives LifeDesk (maldivesnlaccadives): Maldives and Laccadives LifeDesk (262) DwCA
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FIGURE 7A–D in Chitons (Mollusca, Polyplacophora) from the Maldive islands
FIGURE 7A–D, Acanthochitona penicillata (Deshayes, 1863), Maldive. A–C, intermediate valve, MLD02A. A, dorsal view. B–C, granules, dorsal and lateral views, respectively. D, dorsal view of tail valve, LB05,. E–G, Acanthochitona sp., LB05, intermediate valve. E, dorsal view. F–G, granules, dorsal and lateral views. H–Q, Craspedochiton cf. laqueatus (Sowerby, 1842), Maldive, valves dismounted from living specimen, M59. H–J, head valve. H, dorsal view. I, detail of the sculpture. J, frontal view. K–M, intermediate valve. K, dorsal view. L, frontal view. M, detail of the sculpture. N–Q, tail valve. N, dorsal view. O, ventral view. P, lateral view. Q, posterior view. Scale bars 1 mm: H, J–L, N–P; 500 µm: A, D, Q; 100 µm: E, I, M; 50 µm: B, C, F, G.
FIGURE 9A–G in Chitons (Mollusca, Polyplacophora) from the Maldive islands
FIGURE 9A–G. Craspedochiton cf. laqueatus (Sowerby, 1842), valves, Maldive, MLD02A. A–C, head valve. A, dorsal view. B, detail of the sculpture. C, posterior view. D–G, intermediate valve. D–E, dorsal and frontal views, respectively. F–G, detail of the sculpture of the pleural areas. H–K, Craspedochiton sp., tail valve, Maldive, M65. H, dorsal view. I, detail of the right side. J, detail of the insertion lamina teeth. K, lateral view. Scale bars 1 mm: A, D, E, H, K; 500 µm: C, I, J; 100 µm: B, F, G.
FIGURE 5A–B in Chitons (Mollusca, Polyplacophora) from the Maldive islands
FIGURE 5A–B, Lucilina perligera Thiele, 1909, Maldive, M13, intermediate valve. A, dorsal view. B, tegmentum granules of the central area. C–L, Lucilina carnosa (Kaas, 1979), Maldive. C–D, head valve, MLD02A. C, dorsal view. D, detail of the sculpture. E–F, intermediate valve, MLD02A. E, dorsal view. F, detail of the sculpture. G–I, intermediate valve, M23. G, dorsal view. H, frontal view. I, detail of the sculpture. J–L, tail valve, MLD02A. J. dorsal view. K, lateral view. L, detail of the sculpture of the antemucronal area. Scale bars 1 mm: A, C, E, G, H, J, K; 500 µm: I; 100 µm: B, D, F, L.
FIGURE 4A–C in Chitons (Mollusca, Polyplacophora) from the Maldive islands
FIGURE 4A–C, Callochiton clausadeae Kaas & Van Belle, 1985, tail valve, Maldive, M13. A–B, dorsal and lateral views, respectively. C, detail of the sculpture. D–F, Callochiton sp., S. Nilandu Atoll, Maldive, NHM 1903.4.11.71 (living specimen collected by J.S. Gardiner, not coated). D, detail of the sculpture of an intermediate valve. E, dorsal view of the complete specimen. F, girdle dorsal spicules in situ. G–I, Rhyssoplax maldivensis (E.A. Smith, 1903), Maldive, MLD02A. G, intermediate valve, dorsal view. H–I, tail valve, dorsal and lateral views, respectively. J–O, Tegulaplax hululensis (E.A. Smith, 1903), Maldive, M13. J–L, head valve. J–K, dorsal and lateral views. L, detail of the sculpture. M–O, tail valve. M–N, dorsal and lateral views, respectively. O, detail of the sculpture. Scale bars 1 mm: E, G, J, K, M, N; 500 µm: A, B, D, H, I; 100 µm: C, F, L; 50 µm: O.
FIGURE 3A–J in Chitons (Mollusca, Polyplacophora) from the Maldive islands
FIGURE 3A–J, Ischnochiton sp., Maldive, living specimen, MLD03A. A, complete specimen, lateral view. B, detail of valves vii viii, lateral view. C, close-up of head valve. D, detail of the tegmentum covered by very small apical caps patterned with a semi-spherical layout. E–F, half detached intermediate valve, ventral views. G, ventral (left) and dorsal (right) girdle elements in situ. H, detail of perinotum elements in situ. I, J, dorsal and lateral views (respectively) of the apical caps patterned with a semi-spherical layout. K–M, Ischnochiton feliduensis E.A. Smith, 1903, Maldive, Felidhoo Atoll, Holotype, BMNH 1903.9.17.25, an intermediate valve detached (not coated). K, dorsal view. L, close-up of K. M, granules of the central area. Scale bars 1 mm: A; 500 µm: C, K; 100 µm: B, E, F, L; 50 µm: D, G, I, M; 10 µm: H, J.
FIGURE 2A–Q in Chitons (Mollusca, Polyplacophora) from the Maldive islands
FIGURE 2A–Q, Ischnochiton albinus Thiele, 1911, Maldive, M13. A–E, L–Q, living specimen. A–B, dorsal and lateral view (respectively) of a complete specimen. C, close-up of the head valve. D, lateral view of valves vii-viii. E, close-up of the tail valve. L, perinotum elements in situ. M, detail of the perinotum elements, showing the sphaerules along the distal margin in situ. N, hyponotum elements in situ. O, radula. P, an isolated blade of the second lateral tooth. Q, detail of the central teeth. F–K, intermediate valve. F, dorsal view. G, frontal view. H, ventral view. I, detail of the sculpture, showing the contact between the right lateral and central areas. J, lateral view of elongate granules of the lateral area. K, the same, by a dorsal view. Scale bars 1 mm: A, B; 500 µm: C–H; 100 µm: I; 50 µm: J, K, N, O; 10 µm: L, M, P, Q.
FIGURE 6A–O in Chitons (Mollusca, Polyplacophora) from the Maldive islands
FIGURE 6A–O, Lucilina sp., Maldive. A–G, juvenile living specimen, M07. A, dorsal view of the complete specimen. B, close-up of the head valve. C, close-up of the tail valve. D, ocelli in the lateral area of intermediate valves. E, close-up of Fig. D, showing the ocelli. F, lateral view of the tail valve. G, perinotum elements in situ. H–J, head valve, MLD02A, dorsal, lateral and frontal views, respectively. K–L, intermediate valve, M13. K, dorsal view. L, detail of the sculpture. M–O, tail valve, M65, dorsal, lateral and posterior views, respectively. Scale bars 1 mm: A, K; 500 µm: H–J, L–O; 100 µm: B–D, F; 10 µm: E, G.
FIGURE 10A–F in Chitons (Mollusca, Polyplacophora) from the Maldive islands
FIGURE 10A–F, Craspedochiton laqueatus (Sowerby, 1842), NHM type material, Philippines, Mindoro, Calapan, not coated. A–C, E–F, valves detached from the paralectotype NHM 1988071/2. A–B, head valve, dorsal and lateral views, respectively. C, intermediate valve (ii), dorsal view. E–F, tail valve, dorsal and lateral views. D, hyponotum scale in situ, from the paralectotype NHM 1988071/3-5, length 11.3 mm (Fig. 12Q). Scale bars 1 mm: A–C, E–F; 10 µm: D.
FIGURE 1A–J in Chitons (Mollusca, Polyplacophora) from the Maldive islands
FIGURE 1A–J, Parachiton hylkiae mauricejayi Schwabe, 2002, Maldive. A–B, head valve detached from a living specimen, MLD02A. A, dorsal view. B, detail of the sculpture. C–D, I–J, intermediate valve detached from a living specimen, MLD02A. C, dorsal view. D, frontal view. I, detail of the sculpture of the central area, granules in the longitudinal chains. J, the same, by a lateral view. E–F, intermediate valve, M65. E, dorsal view of the half side. F, detail of the sculpture of the central area. G–H, tail valve, M65. G, lateral view. H, dorsal view. Scale bars 1 mm: C, D, G, H; 500 µm: A, E; 50 µm: B, F, I; 10 µm: J.
FIGURE 12A in Chitons (Mollusca, Polyplacophora) from the Maldive islands
FIGURE 12A, Parachiton hylkiae mauricejayi Schwabe, 2002, living specimen, Maldive, LB03B, length 12.8 mm. B, Ischnochiton albinus Thiele, 1911, living specimen, Maldive, M13, length 5.2 mm. C, Ischnochiton feliduensis E.A. Smith, 1903, Maldive, Felidhoo Atoll, Holotype, NHM 1903.9.17.25, length 6 mm. D, Tegulaplax hululensis (E.A. Smith, 1903), living specimen, Maldive, M28, length 10.5 mm. E–F, Callochiton sp., S. Nilandu Atoll, Maldive, NHM 1903.4.11.71 (living specimen collected by J.S. Gardiner), length 6.6 mm. G, Lucilina sp., living specimen, Maldive, M07, length 4 mm. H, Lucilina indica (Leloup, 1981), holotype (MNHN), Madagascar, Tuléar, length 8 mm. I, Acanthopleura miles (Carpenter in Pilsbry, 1893), living specimen, Japan, Okinawa, Sesoko Island, length 29.2 mm. J, Schizochiton incisus (Sowerby, 1841), living specimen, Indonesia: inside lagoon of Woka Island, off South Halmahera, 1°2.02'S, 128°13.97'E (ZSM Mol 20052075), length 40 mm. K, Acanthochitona penicillata (Deshayes, 1863), living specimen, Maldive, MLD04A, length 6.5 mm. L, Craspedochiton cf. laqueatus (Sowerby, 1842), living specimen, Maldive, M59, length 13.5 mm. M–Q, Craspedochiton laqueatus (Sowerby, 1842), NHM type material, Philippines, Mindoro, Calapan. M, lectotype (NHM 1988071/1), length 17.4 mm. N, paralectotype (NHM 1988071/2), length 17.5 mm. O–Q, paralectotypes (NHM 1988071/3-5), length respectively 16, 13.2 and 11.3 mm. R–S, Cryptoplax burrowi (E.A. Smith, 1884), living specimen, Maldive, M07, length ca. 11.7 mm. T, Cryptoplax burrowi (E.A. Smith, 1884), living specimen, Indonesia, ZSM Mol 20033081, length 25.4 mm. U–X, Cryptoplax burrowi (E.A. Smith, 1884), NHM 1992 053, syntypes, H. Cuming colln., Port Adelaide, S. Australia, length respectively 56.4, 38.5, 47 and 45.1 mm.
FIGURE 14A–C in Chitons (Mollusca, Polyplacophora) from the Maldive islands
FIGURE 14A–C, NHM labels, with informations on type material. A, Chiton laqueatus Sowerby, 1842, 5 specimens (lectotype and 4 paralectotypes), NHM 1988071/1-5. B–C, Cryptoplax burrowi E.A. Smith 1884. B, NHM 1992 053, syntypes, 4 specimens, H. Cuming colln., Port Adelaide, S. Australia. C, NHM 1881.11.1.100, syntype, detached valves, coll. Coppinger, Port Molle, Queensland. D, NHM label of Callochiton platessa Gould, 1846, S. Nilandu Atoll, Maldive, NHM 1903.4.11.71, living specimen collected by J.S. Gardiner (considered as Callochiton sp. in this work).
FIGURE 11A–L in Chitons (Mollusca, Polyplacophora) from the Maldive islands
FIGURE 11A–L, Cryptoplax burrowi (E.A. Smith, 1884), Maldive. A–B, head valve, MLD02A. A, dorsal view. B, detail of the sculpture. C–E, intermediate valve, M65. C, dorsal view. D, detail of the sculpture. E, lateral view. F–H, tail valve, M65. F, dorsal view. G, lateral view. H, detail of the sculpture. I–L, living specimen, M07, girdle elements in situ. I, marginal spicules. J, ventral spicules. K–L, dorsal scales. M–O, Cryptoplax sykesi Thiele, 1909, intermediate valve, Maldive, M13. M, dorsal view. N, lateral view. O, detail of the sculpture. Scale bars 1 mm: C, E–G, N; 500 µm: A, M; 100 µm: B, D, H, I, K, L, O; 50 µm: J.
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