The Pigmentation of Molluscan Shells

نویسنده

  • ALEX COMFORT
چکیده

(4) Pigmentation of Polymita picta (5) Pigmentation of Cepaea nemoralis (6) Conclusion . . . . . . . . (2) General characters of helicid pigmentation . . (3) Colour associations and interchangeability of pigments . . . . . . . . V. Summary . . . . . . . . . VI. References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PAGE 285 286 288 288 289 289 292 292 293 294 294 295 296 296 297 298 299 299

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Data on Molluscan Shells in parts of Nellore Coast, southeast coast of India

X-ray diffraction (XRD), Scanning Electron Microscope-Energy Dispersive Spectroscopy (SEM-EDS), and Fourier Transform Infrared Spectroscopy (FT-IR), were applied to analyze the organic matrix of two Molluscan shells. The Mollusca shells are mineral structure and calcium carbonate crystallized as aragonite. The FT-IR spectra showed Alkyl Halide, Alkanes, Alcohols, Amides, Aromatic, and Hydroxyl ...

متن کامل

On the Spiral Growth of the Inner Surface of the Calcitig Shell

In the preceding paper, the author has discussed the very important differences between the spiral growths of the aragonitic and calcitic shells, and suggested that a definite diffusion of the mother fluid existed on inner shell surface is favored by moving of the mantle in the direction of its own elongation, where concentration gradients assume to occur. Furthermore the differences between ar...

متن کامل

Variation in Orthologous Shell-Forming Proteins Contribute to Molluscan Shell Diversity

Despite the evolutionary success and ancient heritage of the molluscan shell, little is known about the molecular details of its formation, evolutionary origins, or the interactions between the material properties of the shell and its organic constituents. In contrast to this dearth of information, a growing collection of molluscan shell-forming proteomes and transcriptomes suggest they are com...

متن کامل

Snail shape and growth rates: Evidence for plastic shell allometry in Littorina littorea.

The periwinkle Littorina littorea exhibits morphological variation among southern New England populations that appear to be genetically continuous. In dense populations, individuals have relatively elongate shells in comparison to individuals in sparse populations, which have rounder, globose shells. We experimentally demonstrate that this shell variation is a function of snail growth rate. Rap...

متن کامل

Spiral Structure of Elementary Particles analogous to Sea Shells: A Mathematical Description

In this paper we create a self similar analogous image of spiral structure of elementary particles with that of sea shells, using the mathematical description of pigmentation pattern of sea shells, which describes the various potentials of the spiral structure of elementary particles. It also introduces the sea shells analogous parameters for spiral structure of elementary particles for quantis...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2007