Abstract
THE Quarterly Journal of Microscopical Science for April 1889 contains the following:—Contributions to the knowledge of Amphioxzis lanceotatus, Yarrell, by Prof. E. Ray Lankester, F.R.S. (plates xxxiv.-xxxvi.b). Referring to his notes on the anatomy of Amphioxus published in 1875, the author withdraws his confirmation of Johann Müller's statement that there is a pair of apertures on either side of the oral sphincter (velum of Huxley). In reality there are no such apertures at all. Those important structures, described as the “brown funnels,” are fully described and excellently illustrated; some few numerical data of importance for the anatomical discussion of Amphioxus are given; some errors which appear to be current as to the existence or non-existence of spaces of one kind or another in the body and gill bars are corrected; and some drawings are given, which represent in a semi-diagrammatic form the structure of Amphioxus, not merely as seen in sections or dissections, with all their obvious drawbacks, but as reconstructed and corrected from the examination of numerous specimens, so that they present as nearly as might be a true conception of the living organism. This excellent paper will be welcomed by all students.—Studies in the embryology of the Echinoderms, by H. Bury (plates xxxvii.–xxxix.). In this memoir the author confines his attention;—to the primary divisions of the coelom, starting from a stage in which at least two enterocoele pouches are already present;—the hydroccele; its development and connections;—and to the skeleton, so far as it is developed in the dipleurula stage.—On the ancestral development of the respiratory organs in the Decapodous Crustacea, by Florence Buchanan (plate xl.).
Article PDF
Rights and permissions
About this article
Cite this article
Scientific Serials. Nature 40, 116–117 (1889). https://doi.org/10.1038/040116b0
Issue Date:
DOI: https://doi.org/10.1038/040116b0