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Book
ISBN- 81-261-1023-6

ENCYCLOPAEDIA OF AMPHIBIA
RAJIV TYAGI
ARVIND N. SHUKLA

The amphibians have sprung up from fish-like ancestors and that in turn given rise to reptiles, Thus, amphibian consequently hold a very important intermediate position. The term Amphibian was coined by Linnaeus although he kept both, the amphibians as well as some reptiles in this particular class. Later on naturalists and taxonomists put the amphibians particularly in this class, although the characteristic features of the old amphibians and those of recent are little more different.
The main characteristic features of the old amphibians and those of recent are little more different.
The main characteristics of Amphibians are: They may be, aquatic, terrestrial or both; these are cold-blooded (poikilothermous) animals. Their body temperature is variable and most of them undergo hibernation during winter. Some undergo aestivation during summer; the shape of body is variable, it may be depressed or cylindrical and divisible into head, neck, trunk and tail or into head and trunk, The skin is thin, moist, glandular and devoid of exoskeleton. There is a pair of nostrils, which open into the buccal cavity. They are provided with valves to exclude water. The teeth are alike (homodont), acrodont and polyphyodont; Endoskeleton is largely bony or ossified. Skill id dicondylic i.e. possesses two occipital condyles for the attachment to the vertebral column. Eyes are provided with movable lids and tear glands to clear and protect them in air. Brain has smooth cerebral hemispheres and the cerebellum is poorly developed. Fertilization is generally external, sometimes internal. Eggs are mesolecithal and are coveraged with gelatinous covering. They are laid in water.
This encyclopaedic work in three volumes is designed to present entire vital information on Amphibia. Profusely illustrated in the light of latest researches, this work is a dependable reference work for students, teachers and researchers in the discipline.

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Book
ISBN- 81-261-1170-4

ENCYCLOPAEDIA OF ECHINODERMATA
RAJIV TYAGI
ARVIND N. SHUKLA
Encyclopaedia of Echinodermata, in three volumes, has been carefully organised and clearly written to meet the requirements of the undergraduate, postgraduate and those involved in the various competitive examinations. The text has been designed to approach the classification, morphology, anatomy, physiology and development of all required types in a simple, lucid and straightforward manner.

General characters and classification and brief description of other important types have also been dealt with complete, authentic and uptodate account. Further separate chapters on topics of significance and general interest pertaining to the Phylum have also been added to make the treatment more elaborate Profusely illustrated the work has become very informative.

The text is not only encyclopaedic in scope, but also of introductory concise, commensurate yet exhaustive presentation.

Salient Features

• Comparative Anatomy of Echinodemata
• Physiology and Ecology of Echinodermata
• Phylum Echinodermata
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Book
ISBN- 81-261-1521-1

ENCYCLOPAEDIA OF COELENTERATA
RAJIV TYAGI
ARVIND N. SHUKLA
The present title is a comprehensive up-to-date work on the theme, an indispensable text meeting complete requirement of undergraduate and post-graduate students of Zoology. It has been designed to approach the morphology, anatomy, physiology and development of selected type in a very simple and lucid style. In the description of animal types special emphasis has been laid on the functioning of various parts/tissue of the body. General characters and classification have been dealt with complete authentic and up to date account. Separate chapters on topics of significance and general interest pertaining to the phylum have been also added to make the treatment more elaborate.
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Book
ISBN- 81-261-3020-2

ENCYCLOPAEDIA OF ENTOMOLOGY
VEERENDER UTPAL
An indispensable reference source for all professionals and students of entomology and related disciplines. The volume is ideal for the professionals, students as well as general readers. It provides a complete overview of entomology with up-to-date entries converting all related disciplines. It covers insects anatomy, behaviour, biology, ecology, histology, molecular biology, morphology, pest management, taxonomy and systematics. The common names of insects and taxonomy classification is also provided. Encyclopaedia of Entomology is intended for all those interested in this field. It will be of immense value to students of entomology.

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