Introduction -- Dichotomous keys -- External anatomy -- Insect development -- Taxonomic terminology -- Taxonomy, classification, and nomenclature -- Phylum Arthropoda ...
PROF. ALEXANDER PUTRUNKEVITCH, a distinguished arachnologist, has furnished an account of the Pakæozoic Arachnida in the Transactions of the Connecticut Academy of Arts and Sciences, vol. 37, 1949 ...
Due to their relative rareness and restricted distribution, little is known about the ultra-structure of ricinuleids. In particular, sense organs have not been the subject of electron microscopic ...
THE Arachnida have been unduly neglected by zoologists, having been overshadowed as objects of study by the beauty and infinite variety of the insects. The study of the class has been difficult, owing ...
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