On the existence of branchiae in the young Caeciliae, and on a modification and extension of the branchial classification of the Amphibia / by John Hogg.

  • John Hogg
Date:
[1841]
Catalogue details

Licence: Public Domain Mark

Credit: On the existence of branchiae in the young Caeciliae, and on a modification and extension of the branchial classification of the Amphibia / by John Hogg. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    them with the Ophidians, instead of terminating the class by them*.” Here it was that I received the first intimation of Prof. J. Muller’s discovery of branchial apertures in a young Ccecilia; and on a further perusal, I found that this historical notice by M. de Blainville was both in answer to, and continuation of, M. Dumeril’s ‘ Memoire sur la classification et la structure des Ophiosomes ou Ceciloi'des, famille de Reptiles qui parti- cipent des Ophidiens et des Batraciens, relativement a la forme et a 1’organisation,’ which had been read at a previous meet- ing of the Academy, and the report of which is inserted in a former number (20) of the same volume of the ‘ Comptes Rendus’ (p. 581). M. Dumeril has given a brief description of this highly in- teresting discovery; but as this is abridged from a part only of Prof. J. Muller’s own account as published in Oken’s ‘Isis’ for 1831, p. 7l0j and supposing that the whole of so distin- guished an anatomist’s paper on the subject—which also com- prises his classification of the Amphibia—will be received with satisfaction, since it is published in a foreign work not fre- quently to be met with in England, I make no apology for giving a translation of the whole from the original German. “ Branchial apertures discovered in a young Ccecilia hypo- cyanea, in the Museum of Natural History at Leyden, by Prof. John Muller. “ In the spring of the year 1831 I visited the gi’eat Museum of Zoology and Anatomy at Leyden, where the particular kind- ness of MM. Temminck, Van der Hoeven, Sandifort, Brors, Schlegel, and Dr. Haan, made my short stay highly profitable and useful. On an examination of the Ccecilice which are preserved in that exceedingly rich Museum of Natural His- tory, I discovei'ed, in quite a young Ccecilia hypocyanea, upon each side of the neck, some lines from the extremity of the fissure of the mouth, an apei'ture a line in length. This open- ing is in length somewhat more than in height; it is placed in the yellow band which marks the sides of the CiEcilia hy- pocyanea, and this yellow band is just there much wider. The edge of the aperture is sharp ; in its interior black fringes were visible, which appear fixed to the horns of the tongue-bones or branchial arcs, but they did not project out ot the aperture. The apertures themselves continue in more open conimunica- tion with the cavity of the mouth. This young Ccecilia, which, Comptes Rendus des Seances de I’Acad^mie des Sciences, tom. ix. No 22. 2e Semestve, 1839.
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