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Ultrastructure and mineral composition of serpulid tubes (Polychaeta, Annelida)
There is no correlation between tube mineralogy, and ultrastructure, and marine, brackish, and freshwater environments, and it is found that 47% of the serpulid species studied possess a unique combination of tube structure characters.
A 217-year record of summer air temperature reconstructed from freshwater pearl mussels (M. margarifitera, Sweden)
Structure and growth rates of bivalve shells as indicators of environmental changes and pollution
Studies of structure, growth rates and elemental distribution in shells of freshwater bivalves give information about environmental changes in the last 100-200 years: this covers the main period of…
Methods for the study of environmental changes using the structural and chemical information in molluscan shells
Ultrastructural Characteristics of the Nacre in Some Gastropods
- H. Mutvei
- Materials Science
- 1 December 1978
The nacreous layer in Gibbula, Calliostoma, Trochus and Haliotis is described on the basis of scanning electron microscopic studies and the mechanical properties of the nacre, and the effects of the interlamellar conchiolin membranes upon the nucleation of the tablets are discussed.
ON THE TUBE ULTRASTRUCTURE AND ORIGIN OF CALCIFICATION IN SABELLIDS (ANNELIDA, POLYCHAETA)
Abstract: Tube ultrastructure of Jurassic and Cretaceous Glomerula is very similar to that of Recent Calcisabella, supporting the synonymy of these genera and the early Mesozoic origin of…
Development of the Embryonic Shell of Nautilus
The organization of this chapter follows the development of the shell of Nautilus from the formation of the cicatrix through hatching. The description of the cicatrix is based mainly on study of one…
Freshwater bivalves tell of past climates: But how clearly do shells from polluted rivers speak?
The nacreous layer in Mytilus, Nucula, and Unio (Bivalvia). Crystalline composition and nucleation of nacreous tablets.
- H. Mutvei
- Materials ScienceCalcified tissue research
- 1 December 1977
Etching with the glutaraldehyde-acetic acid solution reveals that the nacreous tablets in Mytilus, Nucula, and Unio are composed of four crystal individuals which occur in two structurally different…