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单词 Littorina
释义 Littorina|lɪtəˈraɪnə, -iːnə|
[mod.L. (A. d'A. de Férussac Tableaux Systématiques des Animaux Mollusques (1822) p. xxxiv), f. L. lītus shore.]
1. A gastropod mollusc of the genus so called; = periwinkle2 1.
[1820–5J. & G. B. Sowerby Genera Recent & Fossil Shells plate 211 As the name implies, the Littorinæ are found on and near the shore.]1857L. Reeve Conchologia Iconica X. s.v. Littorina, plate 1, species 1 (heading) The bubbled Littorina.1963D. W. & E. E. Humphries tr. Termier's Erosion & Sedimentation iii. 64 The Littorinas of California..have each been able to dislodge 0·3 gm of grains in twenty-four hours.
2. Littorina (or Litorina) sea, the Baltic sea at the end of the Boreal period. Also Littorina beach, Littorina minimum, Littorina period, Littorina stage, Littorina transgression (see quots.).
1921R. A. S. Macalister Text-bk. European Archæol. I. ii. 43 The Baltic Sea became of much the same configuration as at present, but rather larger in extent and more salt; the name given to this stage of its history, once more derived from the name of its mollusc, is Littorina Sea. The greatest depression of this phase of land-movement may be called the Littorina Minimum. The Littorina period is also known as the Tapes period.1928C. Dawson Age of Gods iii. 48 The climate of Scandinavia became much warmer, owing perhaps to a change in the ocean currents... This is the Litorina stage, named after the periwinkle which now inhabited the warmer waters of the Baltic.1949W. F. Albright Archaeol. of Palestine iii. 62 Pottery came into use in an early phase, scarcely later than about 4500 b.c., at the height of the Litorina period.1954S. Piggott Neolithic Cultures i. 2 The Litorina Transgression of the Baltic.1963D. W. & E. E. Humphries tr. Termier's Erosion & Sedimentation i. 26 Corresponding to the Calaisian are the Littorina beaches.
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