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5,586 results for “Mollusca”
Aquatic Mollusca (Gastropoda and Bivalvia) from the Malaysian Borneo: A bibliographic records
<p>This data set contains the available aquatic Mollusca reported from Malaysian Borneo (East Malaysia) comprised of two provinces namely Sarawak and Sabah along with the federal territory of Labuan. </p>
Aquatic Mollusca (Gastropoda and Bivalvia) from the Malaysian Borneo: The inconsistency records
<p>This data set contains the available taxonomic inconsistencies of aquatic Mollusca (Gastropoda and Bivalvia) reported from Malaysian Borneo (East Malaysia) comprised of two provinces namely Sarawak and Sabah along with the federal territory of Labuan. </p>
Infaunal mollusca in 4 fjord along a long latitudinal gradient
<p>5 files are included in the object:</p> <ol> <li>Abundance data of the infaunal communities collected from two depth zones in four fjords along a long latitudinal gradient</li> <li>Biomass data of the infaunal communities collected from two depth zones in four fjords along a long latitudinal gradient</li> <li>Biological trait data for the collected taxa. Modalities for three biological traits are included (feeding mode, maximum size, life span)</li> <li>Habitat clasification for the studied locations</li> <li>R code for conducting RLQ analyses using the provided data</li> </ol>
FIG. 22. — A, B in The unknown bathyal of the Canaries: new species and new records of deep-sea Mollusca
FIG. 22. — A, B, Gymnobela abyssorum (Locard, 1897), shell from DW120 (10.5 mm); new to the Canaries; C, D, Kurtziella serga (Dall, 1881), shell from DW130 (7.7 mm); new to the Canaries; E, Kurtziella serga, shell from DW129 (8.8 mm); F, G, Famelica monotropis (Dautzenberg & H. Fischer, 1896), shell from DW130 (5.7 mm); new to Spanish waters; H-I, Neopleurotomoides callembryon (Dautzenberg & H. Fischer, 1896), shell from DW130 (2.3 mm); new to Spanish waters; J, Neopleurotomoides callembryon, scanning electron micrograph of the protoconch of another shell from DW130; K-L, Pleurotomella demosia (Dautzenberg & H. Fischer, 1896), shell from DW126 (8.7 mm); new to the Canaries; M-N, Pleurotomella eurybrocha (Dautzenberg & H. Fischer, 1896), shell from DW130 (3.8 mm); new to the Canaries. Scale bar: J, 500 µm, all measurements refer to shell height.
FIG. 25. — A-C in The unknown bathyal of the Canaries: new species and new records of deep-sea Mollusca
FIG. 25. — A-C, Spirolaxis lamellifer (Rehder, 1935), shell from DW120 (diameter 3.7 mm); new to the Canaries; D-F, Orbitestella pruinosa n. sp., holotype from DW130 (diameter 0.8 mm); G, Graphis gracilis (Monterosato, 1874), shell from DW130 (height 2.1 mm); H, I, Odostomia madeirensis Peñas, Rolán & Swinnen, 2014, shell from DW133 (height 2.2 mm); new to Spanish waters; J, K, Liostomia canaliculata n. sp., holotype from DW130 (height 1 mm); L, M, Ringicula pirulina Locard, 1897, shell from DW130 (6.4 mm); N, Colpodaspis pusilla M. Sars, 1870, shell from DW126 (1.4 mm); new to the Canaries.
FIG. 11. — A-C in The unknown bathyal of the Canaries: new species and new records of deep-sea Mollusca
FIG. 11. — A-C, Discaclis canariensis Moolenbeek & Warén, 1987, shell from DW133 (diameter 1.2 mm); D-J, Discaclis lamellata n. sp.: D-F, holotype (sh.) from DW130 (diameter 1.0 mm); G, paratype (sh.), same locality (diameter 0.95 mm); H, protoconch of another paratype; I, protoconch of another paratype in apical view; J, microsculpture on the shoulder, same shell as I. Scale bars: H, I, 100 µm; J, 20 µm.
FIG. 2. — A, B in The unknown bathyal of the Canaries: new species and new records of deep-sea Mollusca
FIG. 2. — A, B, Bathysciadium costulatum (Locard, 1898), shell from DW130 (2.3 mm length); new to Spanish waters; C, D, Copulabyssia corrugata (Jeffreys, 1883), shell from DW130 (1.6 mm length); new to the Canaries; E, F, Profundisepta profundi (Jeffreys, 1877), shell from DW130 (3.6 mm length); new to Spanish waters; G, H, Fissurisepta granulosa Jeffreys, 1883, shell from DW130 (2.3 mm length); new to the Canaries; I-J, Satondella danieli Segers, Swinnen & Abreu, 2009, shell from DW130 (1.8 mm maximum diameter); new to Spanish waters.
Fig. 3. A. a in Untangling species identity in gastropods with polymorphic shells in the genus Bolma Risso, 1826 (Mollusca, Vetigastropoda)
Fig. 3. A. a, Bolma henica madagascarensis (Indian Ocean); b, Bo. henica abyssorum; c, Bo. henica henica, with type locality represented by a white star (Fiji Island, Southwest Pacific); d, Bo. cf. minutiradiosa. B. a–d, distinct shell morphs found in Bo. recens, with type locality represented by a white star (Kiwi seamount, Three Kings Ridge). C. a, Bo. mainbaza, with type locality (South Madagascar); b, Bo. pseudobathyraphis, with type locality (South New Caledonia); c, Bo. millegranosa; d, Bo. opaoana with type locality (South New Caledonia, Crypthélia Bank).
Fig. 4 in Untangling species identity in gastropods with polymorphic shells in the genus Bolma Risso, 1826 (Mollusca, Vetigastropoda)
Fig. 4. Shell diversity across the molecular phylogeny of the "deep-water" clade of the subfamily Turbininae (Williams 2007, i.e., the genera Astraea, Bellastraea , Bolma and Guildfordia). The phylogeny is based on Bayesian analyses of the concatenated sequences from cox1 and 28 S genes, incorporating an uncorrelated relaxed, log- normal clock produced using *BEAST. The tree is a maximum clade credibility tree with median node heights based in 9000 trees. Support values are posterior probabilities (PP); branches < 50% were collapsed. Species names are labelled on the right-hand side. Species hypotheses previously delineated by the integrative taxonomy approach are highlighted by the grey boxes.
Fig. 2 in Untangling species identity in gastropods with polymorphic shells in the genus Bolma Risso, 1826 (Mollusca, Vetigastropoda)
Fig. 2. [next page] Molecular based species delineation of the genus "Bolma". A. Ultrametric tree produced using BEAST based on cox1 sequences. B. PSHs derived from the GMYC model and labelled from 1 to 37. C. PSHs derived from the GMYC model using the lower limit of the equivalent of a 95% confidence interval, and labelled from A to ZD. D. SSHs drawn from congruency between cox1 and 28S. Boxes with a black outline indicate that the SSH was monophyletic in both cox1 and 28S trees. Boxes without a black outline highlight SSHs for which molecular data were either incomplete or non-informative. SSHs labelled from A to ZD (following step C) or with the species name when our sequences matched published data associated with the species names. E. PSHs derived from the Bayesian analysis based on 28S sequences. F. Bayesian, non-ultrametric tree produced using BEAST based on 28S sequences. G. Species names retained in the present study. For the SSH E-F-G-H, the name Bo. henica was retained; however, Bo. henica abyssorum, Bo. henica madagascarensis and Bo. henica henica are represented as sub-species separated by white dotted lines. For both trees, nodal support values are posterior probabilities (PP), shown only for PP> 50%. Branches with PP <50% were collapsed. Red and green branches correspond to monophyletic species hypotheses. Colour coded boxes: red corresponds to cox1 PSHs supported by PP> 95%; light red corresponds to cox1 PSH supported by PP <95%; light grey corresponds to cox1 and 28S singletons; a grey cross represents missing data; green corresponds to 28S species hypotheses supported by PP> 95%; light grey corresponds to groups of genotypes displaying diagnostic 28S sites. Specimen numbers are given in the Supplementary file.
Fig. 2 in A new species of Novastoa Finlay, 1926 (Mollusca: Gastropoda: Vermetidae) from coral reefs of the Pacific Ocean
Fig. 2. Novastoa rapaitiensis sp. nov. A–D. Pre-hatching larval shells from egg mass of Fig. 1M. E–F. Operculum of specimen from Rapa Iti (not from the type series). G. SEM image of lateral view of operculum, with lamina stripped away to expose underlying structure (MNHN IM-2000-31684, Rapa Iti Island, French Polynesia). H. SEM image of exterior surface of operculum (MNHN IM-2000-31684, Rapa Iti Island, French Polynesia). I. Radula of specimen from Rapa Iti. L. Central section of radula (MNHN IM-2000-31684, Rapa Iti Island, French Polynesia). M. SEM image of teleoconch sculpture after removal of surrounding substrate (UF 436684, Moorea Island, French Polynesia).
Fig. 1 in A new species of Novastoa Finlay, 1926 (Mollusca: Gastropoda: Vermetidae) from coral reefs of the Pacific Ocean
Fig. 1. Novastoa rapaitiensis sp. nov. A. Living specimens embedded in coral substrate with only apertures and heavily encrusted opercula visible (UF 400847, Moorea Island, French Polynesia, photographs by G. Paulay). B–C. Preserved specimen fractured in plane perpendicular to surface, showing both halves of broken shell and animal embedded in coral (UF 436684, Moorea Island, French Polynesia). D–E. Living specimen from Rapa Iti (MNHN IM-2000-31685) just after extraction from the shell. F. Living specimen embedded in coral that has been fractured in plane perpendicular to surface (UF 400849). – G–L. Lateral views of opercula. G. Operculum from Rapa Iti as photographed in the field just after dissection (not from the type series). H. Operculum from the Moorea Island population, French Polynesia (UF 436684). I. Operculum from the Rapa Iti Island population, French Polynesia (MNHN IM-2000-31684). L. Operculum from the Yonge Reef population, Australia (AM C.464342). – M. Egg capsule after removal from interior shell wall (more developed embryos shown in Fig. 2A–D).
Fig. 10 in Taxonomy of some Galeommatoidea (Mollusca, Bivalvia) associated with deep-sea echinoids: A reassessment of the bivalve genera Axinodon Verrill & Bush, 1898 and Kelliola Dall, 1899 with descriptions of new genera Syssitomya gen. nov. and Ptilomyax gen. nov.
Fig. 10. Ptilomyax hadalis sp. nov. A. Holotype attached to echinoid spines. B. Paratype, left side. C. Juvenile paratype lacking "wings". D. Anatomy of a paratype as viewed from the left side.
Fig. 9. Pourtalesia miranda Agassiz, 1869 in Taxonomy of some Galeommatoidea (Mollusca, Bivalvia) associated with deep-sea echinoids: A reassessment of the bivalve genera Axinodon Verrill & Bush, 1898 and Kelliola Dall, 1899 with descriptions of new genera Syssitomya gen. nov. and Ptilomyax gen. nov.
Fig. 9. Pourtalesia miranda Agassiz, 1869 with Syssitomya pourtalesiana sp. nov. attached, from Biscay. Courtesy of A.J. & E.C. Southward.
Fig. 6 in Taxonomy of some Galeommatoidea (Mollusca, Bivalvia) associated with deep-sea echinoids: A reassessment of the bivalve genera Axinodon Verrill & Bush, 1898 and Kelliola Dall, 1899 with descriptions of new genera Syssitomya gen. nov. and Ptilomyax gen. nov.
Fig. 6. Montacuta substriata (Montagu, 1808), NMW.Z 2000.101.73. Gulfaks Oil Field, North Sea, 217 m. A-B. SEM of hinges of right and left valves. C. SEM of internal of right valve. D. SEM of external of left valve.
Fig. 7 in Taxonomy of some Galeommatoidea (Mollusca, Bivalvia) associated with deep-sea echinoids: A reassessment of the bivalve genera Axinodon Verrill & Bush, 1898 and Kelliola Dall, 1899 with descriptions of new genera Syssitomya gen. nov. and Ptilomyax gen. nov.
Fig. 7. Syssitomya pourtalesiana sp. nov. from Norwegian Sea. A-C. Photo micrographs a external of left valve, internals of both valves. D-E. SEM of hinges of right and left valves. F-G. SEM of internal of both valves. H. SEM of prodissoconch. I. SEM of internal of right valve from NORBI cruise, abyssal, Courtesy of Anders Warén.
Fig. 8 in Taxonomy of some Galeommatoidea (Mollusca, Bivalvia) associated with deep-sea echinoids: A reassessment of the bivalve genera Axinodon Verrill & Bush, 1898 and Kelliola Dall, 1899 with descriptions of new genera Syssitomya gen. nov. and Ptilomyax gen. nov.
Fig. 8. Computer enhanced photomicrographs of whole specimens of Syssitomya pourtalesiana sp. nov. from the Norwegian Sea. A-A2. Holotype A. Exterior from right side. A1. Dorsal. A2. Ventral. B. Paratypes, size series.
Fig. 4 in Taxonomy of some Galeommatoidea (Mollusca, Bivalvia) associated with deep-sea echinoids: A reassessment of the bivalve genera Axinodon Verrill & Bush, 1898 and Kelliola Dall, 1899 with descriptions of new genera Syssitomya gen. nov. and Ptilomyax gen. nov.
Fig. 4. Scanning electron micrographs of anatomy. A. K. symmetros (Jeffreys, 1876) from Biscay. B. Syssitomya pourtalesiana sp. nov. from Norwegian Sea. C. Montacuta substriata (Montagu, 1808) from North Sea. D. Excised ctenidium of M. substriata. E. Excised piece of ctenidium from S. pourtalesiana sp. nov.
Fig. 5 in Taxonomy of some Galeommatoidea (Mollusca, Bivalvia) associated with deep-sea echinoids: A reassessment of the bivalve genera Axinodon Verrill & Bush, 1898 and Kelliola Dall, 1899 with descriptions of new genera Syssitomya gen. nov. and Ptilomyax gen. nov.
Fig. 5. Aeropsis rostrata (Wyville Thomson, 1877) with Kelliola symmetros (Jeffreys, 1876) attached, from Biscay.
Fig. 3 in Taxonomy of some Galeommatoidea (Mollusca, Bivalvia) associated with deep-sea echinoids: A reassessment of the bivalve genera Axinodon Verrill & Bush, 1898 and Kelliola Dall, 1899 with descriptions of new genera Syssitomya gen. nov. and Ptilomyax gen. nov.
Fig. 3. Kelliola symmetros (Jeffreys, 1876) from Biscay. A-C. Photo micrographs a external of left valve, internals of both valves. D-E. SEM of hinges of right and left valves. F-H. SEM of internal of both valves and external of left valve. I. SEM of prodissoconch. J. SEM of anterior area showing weak radial sculpture. K. SEM of margin showing transverse grooves.
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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