Histoire naturelle des vers

Bruguière,; Dall, William Healey; Deshayes, G. P.; Henderson, Janice; Lamarck, Jean Baptiste Pierre de Monet de Antoine

doi:10.5962/bhl.title.8638

Cited by 24 publications

(18 citation statements)

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“…The conch shells chosen are: Pecten jacobeus (Linnaeus, 1758), 5 Pinna nobilis (Linnaeus, 1758), Venus verrucosa (Linnaeus, 1758) and Conus mediterraneus (Hwass, 1792), 6 Figure 2.…”

Section: Nanoindentation Experimentsmentioning

confidence: 99%

Nanoindentations on Conch Shells of Gastropoda and Bivalvia Molluscs Reveal Anisotropic Evolution Against External Attacks

Bignardi

Petraroli²,

Pugno³

2010

j nanosci nanotechnol

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Nanoindentation method has been used to explore, at the nanoscale, the mechanical properties of four different representative types of conch shells belonging to the two biggest classes of molluscs, Gastropoda and Bivalvia, in order to compare nanohardness and Young's modulus with respect to the microstructural anisotropic architectures. For the experimental tests a Nano Indenter XP (MTS Nano Instruments, Oak Ridge TN) has been used. The mechanical tests have been carried out on the inner and outer surfaces of the shells, as well as on their cross-section, near to the inner/outer surfaces and in the middle layer. The results confirm the three layered anisotropic architecture of the investigated conchs. On each of these 5 surfaces, 2 x 5 indentations have been performed at different maximum depth: from 250 nm to 4 microm, with a step of 250 nm, for a total of 3200 tests. The numerous observations have been analysed applying an ad hoc modification of the Weibull Statistics, suggesting a natural evolution of the shells against external attacks.

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“…The conch shells chosen are: Pecten jacobeus (Linnaeus, 1758), 5 Pinna nobilis (Linnaeus, 1758), Venus verrucosa (Linnaeus, 1758) and Conus mediterraneus (Hwass, 1792), 6 Figure 2.…”

Section: Nanoindentation Experimentsmentioning

confidence: 99%

Nanoindentations on Conch Shells of Gastropoda and Bivalvia Molluscs Reveal Anisotropic Evolution Against External Attacks

Bignardi

Petraroli²,

Pugno³

2010

j nanosci nanotechnol

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“…At least 20 species have been identified (Ross 1969, 1999; Newman & Ross 1976). Tetraclita squamosa was first described by Bruguière (1789). It was re‐classified by Darwin (1854) into 12 subspecies based on variation in parietes colour and opercular plates and soft body morphology.…”

Section: Introductionmentioning

confidence: 99%

“…It was re‐classified by Darwin (1854) into 12 subspecies based on variation in parietes colour and opercular plates and soft body morphology. In East Asia, the three subspecies T. squamosa squamosa Bruguière, 1789, T. s. japonica Pilsbry, 1916 and T. s. formosana Hiro, 1939 have recently been separated as distinct species ( T. squamosa, T. japonica and T. formosana ) based on morphological and molecular analyses (Yamaguchi 1987; Hasegawa et al . 1996; Chan 2001, 2003).…”

Section: Introductionmentioning

confidence: 99%

Morphological and genetic differentiation of the acorn barnacle Tetraclita squamosa (Crustacea, Cirripedia) in East Asia and description of a new species of Tetraclita

Chan¹,

Tsang²,

Chu³

2007

Zoologica Scripta

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2007). Morphological and genetic differentiation of the acorn barnacle Tetraclita squamosa (Crustacea, Cirripedia) in East Asia and description of a new species of Tetraclita. -Zoologica Scripta, 36 , 79-91.The common intertidal barnacle Tetraclita squamosa occurs in two morphologically and genetically distinct forms in East Asia. The north-western Pacific form ( Japan, Okinawa and Taiwan) has green parietes and the tergo-scutal flaps are black without any patterns. The south China form (Xiamen, Hong Kong) also has green parietes but the tergo-scutal flaps are black with two white spots on the tergal and scutal margin. Compared to the NW Pacific form, the south China form has a beaked tergum, a sharper tergal spur and cirrus I lacks serrulate type setae that have four rows of setules. The two forms differ by 15-16% in COI divergence, which is comparable to values for other congeneric barnacle species. The 12S rRNA and ITS1 sequences are also distinct between the two forms. Our results support the conclusion that the two forms are genetically differentiated species. We describe the NW Pacific form as a new species, Tetraclita pacifica . We are treating the other species as Tetraclita squamosa based on the fact that Pilsbry, in 1916, redescribed T. squamosa squamosa using samples collected from south China and the Philippines. Further studies are needed to confirm the identity and geographical distribution of the 'widely distributed' T. squamosa in the Indo-West Pacific.

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“…Bursa, between Bozüyük and İnegöl, by the “Mezit 7” bridge, limestone rocks and beach forest next to the road, 580 m, 39°55.724'N, 29°43.939'E, leg. Páll-Gergely, B., 30.09.2007 d Sphyradium doliolum (Bruguière 1792), Romania, Jud. Tulcea, Forest near the Cocoş Monastery, 145 m, 45°12.835'N, 28°24.415'E.…”

Section: Resultsmentioning

confidence: 99%

“…It was found in association with Sphyradium doliolum (Bruguière 1792), Oxychilus deilus rumelicus Hesse, Laciniaria plicata (Draparnaud), Bulgarica denticulata thessalonica (Rossmässler), Euxina persica paulhessei (Lindholm), Euxina circumdata (L. Pfeiffer), Cochlodina laminata (Montagu). Atanas Irikov visited the type locality (very humid forest with rocks along the river) on two occasions, with collection time totalling 6–8 hours.…”

Section: Resultsmentioning

confidence: 99%

Subgeneric division of the genus Orcula Held 1837 with remarks on Romanian orculid data (Gastropoda, Pulmonata, Orculidae)

Páll‐Gergely¹,

Deli²,

Irikov³

et al. 2013

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The genital anatomy of Orcula jetschini (Romania), Orcula zilchi (Bulgaria), and Orcula wagneri (Albania) is described. Based on anatomical features (morphology of the penial caecum) shell characters (sculpture and shape) and unpublished molecular data the genus Orcula is subdivided into three subgenera. Orcula zilchi was classified within the monotypic subgenus Orcula (Hausdorfia) subgen. n.; Orcula jetschini, Orcula wagneri, and Orcula schmidtii were classified to Orcula (Illyriobanatica) subgen. n. (type species: Pupa schmidtii) whereas the other Orcula species remain in the nominotypical subgenus. Orcula (Hausdorfia) is known from South-Eastern Bulgaria and North-Western Turkey, Orcula (Illyriobanatica) inhabits Western Romania, North-Western Greece, Albania, Macedonia, Kosovo, and Montenegro. The nine species of Orcula (Orcula) are known mainly from the Alps and the Western Carpathians (from Eastern France to Eastern Hungary and Slovakia).The occurrence of only one Orcula species namely Orcula jetschini is verified from Romania. Available information suggests that data on the Romanian occurrence of Orcula dolium and Orcula gularis were based on wrongly identified specimens. Sphyradium dobrogicum (=Orcula dobrogica) is considered as a synonym of Sphyradium doliolum.

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Histoire naturelle des vers

Cited by 24 publications

References 0 publications

Nanoindentations on Conch Shells of Gastropoda and Bivalvia Molluscs Reveal Anisotropic Evolution Against External Attacks

Nanoindentations on Conch Shells of Gastropoda and Bivalvia Molluscs Reveal Anisotropic Evolution Against External Attacks

Morphological and genetic differentiation of the acorn barnacle Tetraclita squamosa (Crustacea, Cirripedia) in East Asia and description of a new species of Tetraclita

Subgeneric division of the genus Orcula Held 1837 with remarks on Romanian orculid data (Gastropoda, Pulmonata, Orculidae)

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