| OCR Text |
Show 298 PROP. W. B. BENHAM ON THE [Apr. 2, the epiglottis ; in other cases, as in Man, they are more lateral in position, lying in all cases between the" true" and " false" vocal cords, wlien both are present. In Man, each " ventricle" extends upwards, intervening between the aryteno-epiglottid and the thryo-epiglottid. In some Monkeys, in addition to their lateral pouches, there is a smaller or larger (e. g. Mycetes) median pouch ; but in all these cases, the pouch or pouches lie above the thyroid cartilage, either actually or morphologically. Only in the Mystacocete l, apparently, do we meet with a post-thyroideal pouch. It seems to me this must be distinct from the preceding. Naturally, I write with considerable hesitation in the face of the views of such well-kuown authorities on the Cetacea as those quoted above; but I cannot think that the median post-thyroideal sublaryngeal pouch of the Mystacocete is truly and genetically homologous with that of the Odontocete and other mammals-whether median or lateral-which is pre-thyroideal. References to Literature. O W E N . - " On some Indian Cetacea." Trans. Zool. Soc. vi. 1865, p. 17. V O N H A A S T . - " On the Occurrence of a new Species of Euphysetes (E. pottsii) on the Coast of New Zealand." P. Z. S. 1S74, p. 260; and Trans. New Zeal. Instit. vi. 1873, p. 97. CARTE & MACALISTER.-" On the Anatomy of Balcenoptera." Phil. Trans, p. 158 (1867). Y. D E L A G E . - " Hist. d. Balcenoptera muscuhis." Arch. d. Zool. Exp. et Gen. iii. 1885. TURNER, W . - " The Lesser Borqual (B. rostrata) in Scottish Seas, with Observations on its Anatomy." Proc. E. S. Edinb. xix. 1892. DUBOIS.-" Ueber d. Larynx " (in Max Weber's ' Stud. iib. Sauge-thiere'), 1886. ESCHRICHT & BEINHARDT.-Bay Society's Memoir-1866. "On the Greenland Bight Whale (Balcena mysticetus)." OWEN.-Comp. Anat. Phys. of Vertebrates, vol. iii. H O W E S , G. B.-" On some Points in the Anatomy of the Porpoise." Journ. Anat. & Physiol, xiv. 1879, p. 467. C L E L A N D . - " On the Viscera of the Porpoise and White-beaked Dolphin." Journ. Anat. & Physiol, xviii. 1884. D'ARCY T H O M P S O N . - " On the Cetacean Larynx." Studies, Mus. Dundee, i. p. 1890. KANTHACK, A.-" The Myology of the Larynx." Journ. Anat. & Physiol. 1892, p. 279. ' M U R I E . - " On the Organization of the Caa'ing Whale (Globio-cephalus melas)." Trans. Zool. Soc. viii. 1867. M U R I E . - " On Bisso's Grampus." Journ. Anat. & Physiol, iv. 1871, p. 118. 1 But, according to O w e n (iii. p. 598), there is, both in Ateles arachnoides and in Hapale rosalia, a " small sacculus" which " projects from the crico-thyroid space." |
