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A perusal of the literature on copepod cuticles has been made, and results of the investigation of six species made by the author are included in this review.
Antisera raised against salmon insulin and bovine insulin were used to assess the distribution of insulin‐like immunoreactive neurons in the neural ganglion of Ciona intestinalis. Cell bodies of two sizes were found in cortical and medullary positions, together with an extensive network of...
The nervous system (NS) of the coracidium and procercoid larval stages of the pseudophyllidean cestode Diphyllobothrium dendriticum was examined by whole mount immunocytochemistry and electron microscopy. Antisera against the bioamine serotonin and the molluscan cardioexcitatory peptide...
The Perkinsiana acrosome is elongated, pointed and tapering, strengthened anteriorly by cortical rings of longitudinally running units. The Pseudopotamilla acrosome is cap‐like and its apical region contains a laminar body with two electron densities, the laminae crossed by occasional lines of...
Heart, pericardium and glomerular vessel of Cephalodiscus gracilis have been studied with the electron microscope. The lumen of the heart is lined by a basal lamina and an associated epithelium, composed of myoepithelial cells with well developed thin and thick myofilaments. The heart is located...
The tentacles of the pterobranch Cephalodiscus, a hemisessile ciliary feeder, originate from the lateral aspects of the arms and are covered by an innervated epithelium, the majority of its cells bearing microvilli. Each side of a tentacle has two rows of ciliated cells and additional glandular...
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