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Show 1885.] MR. P. L. SCLATER ON A N E W TANAGER. 849 Finally, as to the systematic position of Heterocephalus. It has been placed by Riippell, Brandt, Alston, and others close to Rhizomys among the Spalacinse; but m y examination of these two specimens proves unquestionably that it is a member of the other half of the family, namely the Bathyergina, and that it is really very closely allied to Georychus, of which it may, in fact, be considered a sort of degraded representative, specialized for an entirely subterranean life. For such a life its hairless mole-shaped body, nearly suppressed eyes, and bristle-clad feet admirably adapt it, while, on the other hand, its deficiency both of protective covering and power of sight would be fatal to it were it to venture above ground, where it would be exposed to the fierce rays of an African sun, and to the attacks of the host of enemies which by its underground life it is enabled to escape. These deductions from the structural characters of Heterocephalus are fully borne out by the interesting notes on its habits contributed to the Society by Mr. Lort Phillips (supra, p. 611). EXPLANATION OF PLATE LIV. Fig. 1. Heterocephalus phillipsi; female, natural size. 2. Palate-ridges. 3. Fore and bind feet, showing sole-pads and fringing bristles. Twice natural size. 4. Skull. Twice natural size. 5. Skull of H. glaber. Twice natural size. 3. Characters of an apparently new Species of Tanager of the Genus Calliste. B y P. L. S C L A T E R , M.A., Ph.D., F.R.S., Secretary to the Society. [Eeceived October 4, 1885.] In the series of skins acquired by the British Museum from the Gould Collection is a single specimen of what, after careful examination, I cannot avoid referring to a new species of Ccdliste. This I propose to dedicate to the great ornithologist to whom the type formerly belonged, as CALLISTE GOULDI, sp. nov. Supra lucide viridis, interscapulio nigro variegato; fronte et nigris; pileo antico et regione oculari nitide caruleis; caudaque nigris lucido viridi marginalis; tectricibus alarum minoribus aurescente tinctis: subtus dare viridis, in ventris lateribus carulescente lavata; mento nigro; macula magna gidam medium occupante ccerulescenti-nigra ; ventre imo medio et crisso pallide fulvis; subalaribus albis; rostro nigro; pedibus pallide brunneis. Long, tola 4*8, ala 2*7, cauda 2*0. Hab. Brasilia Merid. Or. Obs. Species G. thoracica affinis, et colore corporis superioris fere |