| OCR Text |
Show 412 MR. W. A. FORBES ON T H E [May 16, Fig. 13. Wixia abdominalis, sp. n. a, Spider in profile, enlarged ; b, cephalothorax of ditto in profile ; c, caput and eyes, from in front; d, abdomen, from behind ; e, maxillae and labium ; /, natural length of abdomen to extremity of protuberance ; g, natural length of Spider (from base of falces to just above the spinners). 14. Mago intenta, sp. n. a, Spider enlarged ; b, ditto in profile ; c, left palpus; d, ditto, from outer side; e, natural length of Spider. 2. Note on an Abnormal Specimen of Pithecia satanas. By W . A. FORBES, B.A., Prosector to the Society. [Eeceived April 18, 1882.] A young male specimen of Pithecia satanas, which was lately forwarded to the Society's Gardens, and died shortly after its arrival, presented an abnormal condition that is perhaps worth recording in the Society's ' Proceedings.' The peculiarity consists in the completely " webbed " condition of the third and fourth digits of the manus on each side, these two fingers being completely connected together down to their tips by a fold of nude skin, and with their nails closely apposed, though not connected, along their contiguous margins. The other digits of the hands, as well as all of those of the feet, are quite normal, the webbing of them not extending beyond the middle of the first phalanx. The case is interesting, partly as affording an excellent instance of an abnormal condition affecting homologous parts of opposite sides in an exactly similar way, and partly as showing that the lower Primates are subject, occasionally, to a condition of things which, as is well known, also occurs not at all rarely in Man. 3. O n some Points in the Anatomy of the Todies (Todidce), and on the Affinities of that Group. By W . A . F O R B E S, B.A., Prosector to the Society. [Received M a y 15, 1882.] One of the few important forms of birds that the late Prof. Garrod had not an opportunity, at some time or other, of dissecting was the genus Todus, the sole representative of the family Todidae. I was therefore much gratified at being able to examine, some months ago, a spirit-specimen of Todus viridis, which was placed at my disposal for dissection by Prof. Newton with his accustomed liberality ; but I hesitated to publish m y notes without having further material to confirm my observations. An opportunity of doing this has lately been afforded to me by the kindness of Prof. Baird and the authorities of the Smithsonian Institution in "Washington, who for- |
