. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. 18 and Amphibia. The "otic" process of the frog's Suspensorium then corresponds to the articular process of the quadrate of Notidanus, and the upper end of the hyoid forms the hyomandibular in Elasmobranchs and Teleosteans, that is, the frog's Suspensorium is not the same as the Teleostean Suspensorium. This was a complete reversal of his former view. The present paper constitutes an endeavour to answer three questions: 1) Which of the above views is the more probable. 2) Is the Suspensorium in Teleostei homologous
. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. 18 and Amphibia. The "otic" process of the frog's Suspensorium then corresponds to the articular process of the quadrate of Notidanus, and the upper end of the hyoid forms the hyomandibular in Elasmobranchs and Teleosteans, that is, the frog's Suspensorium is not the same as the Teleostean Suspensorium. This was a complete reversal of his former view. The present paper constitutes an endeavour to answer three questions: 1) Which of the above views is the more probable. 2) Is the Suspensorium in Teleostei homologous with that in Elasmo- branchii. 3) Are the two latter groups rightly classed together as "hyostylic". An attempt is made to show that 1) the first of the two views of Huxley is the correct one and that the other questions (2 and 3) must be answered in the negative. Considering in the first place the development of the Suspensorium in Teleostei it must be noted that the account given by W. K. Parbier^) is misleading so far as the earliest stages are concerned. More exact descriptions have been given by Stöhr^) and Dohrn^) and for later stages by Huxley in his Croonian lecture. I have made observations on early stages in Gobius and Blennius and on later stages especially in some Siluroids. The process is as follows. The hyomandibular is at first a simple rod of cartilage (Fig. 1). To the anterior surface of its lower portion Sty. ' - ~ Ce. hy. M. M. Symp. Fig. 1. Blenaius, earliest stage to show arrangement of cells. 1) W. K. Pabkee, Phil. Trans., 1873. 2) Stöhe, Festschrift Würzburg, 1882. 3) DoHEN, Mitt. a. d. Zool. St. zu Neapel, Bd. VI, S. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Anatomische Gesellschaft. Jena : G. Fischer
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