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Show 1901.] ON THE ANATOMY OF ANASTOMUS. 365 In the original account of 67. robustus the position of the first nephridium was not fixed. The first pair seem to be in segment v. The segments in front of this are so filled up by the pharynx and associated glands that there would appear to be hardly room for a pair of nephridia. The median calciferous gland of this species was single, not paired as seems to be sometimes the case in the species. The spermatheca have an extraordinarily loug duct, the length of which in relation to the pouch is inadequately represented in the figure illustrating it in the original memoir. It is no thicker than the sperm-duct and runs a straight course to its orifice. 3. Some Notes upon the Anatomy and Systematic Position of the Ciconiine Genus Anastomus. By F R A N K E. B E D D A R D , M.A., F.R.S., Prosector and Vice-Secretary of the Society. [Kecehed April 3, 1901.] (Text-figures 89-91.) Two out of the three examples of Anastomus oscitans acquired by the Society on Jan. 4th having died, I am able to contribute to our knowledge of the structure of the Order Herodiones by an account of certain points in the anatomy of this genus. So far as I am aware, Anastomus is one of the few genera of Storks which has not been dissected ; and, as the genera of this order show some differences of structure, it is important to ascertain how Anastomus stands in relation to its allies. The chief sources of information as to the structure of the viscera and musculature of the Ciconiida^ are those stated below '. These various memoirs and books contain information upon nearly all the genera of Storks ; the only prominent genus which has not been treated of is that which forms the subject of the present communication. There has not been, so far as l a m aware, any doubt as to the truly Stork-like characteristics of Anastomus. 1 GARROD, " On the Carotid Arteries of Birds/' P. Z. S. 1873, p. -157 ; certain Muscles of the Thigh of Birds, &c," ibid. 1873, p. 626 ; id., " O n the Form of the Trachea in certain Species of Storks and Spoonbills," ibid. 1875, p. 297 ; id., " Note on an Anatomical Peculiarity in certain Storks,'' ibid. 1877, p. 711 ; id., " O n the Trachea of Tantalus loculator, &c," ibid. 1878, p. 625. W E L D O N , " O n the Anatomy of Phxnicoptcrus and its Allies,'' P. Z. S. 1883 p. 638. FURBRINGER, Untersuchungen liber Morphologie und Systeruatik der Vogel, Amsterdam, 1888, passim. B E D D A R D , " A Contribution to the Anatomy of Scopus umbretta," P. Z. S. 1884, p. 543; id., " O n certain Points in the Visceral Anatomy of Balanbcps rex," ibid. 1888, p. 284; id., " Notes on . .. the Syrinx in certain Storks," ibid. 1886, p. 321; id., " A Note upon Lissura episcopus, with Remarks upon the Classification of the Herodiones,'' ibid. 1896, p. 231 ; id.. The Structure and Classification of Birds, London, 1898. G A D O W , ' Ates" in Broun's ' Klassen und Ordnungen des Thier-Reichs.' |
