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Show 66 DR. A. GUNTHER ON THE ZOOLOGICAL [Feb. 6, The specimen sent by Commander Cookson exhibits a previously undescribed plumage of these insular Mimi; it is most probably a young individual. 2. DENDRCECA AUREOLA. Dendrceca aureola (Gould) ; Salvin, t. c. p. 473. Three specimens from Charles Island, representing an old female, a young male, and a young female. The young male bird is in an interesting plumage, having the under surface yellow, the throat white with a few yellow feathers intermixed, while on the breast the reddish streaks are just beginning to appear. 3. GEOSPIZA FULIGINOSA. Geospiza fuliginosa (Gould) ; Salvin, t. c. p. 482. Three young specimens from Albemarle Island, whence no Geospiza has as yet been recorded. Two are nestlings, the smallest being uniform creamy buff below, and having very broad rufous edgings to the wing-coverts and quills. The specimen appears to be full-grown, and measures as follows-total length 3*9 inches, wing 2*4, tail 1*7, tarsus 0*8. The Albemarle species would appear from these dimensions to be G. fuliginosa, as they are too big for G. parvula, and there is also a specimen of a young G. fuliginosa from Indefatigable Island (Habel) in the British Museum, with the plumage of which the Albemarle skin agrees very well indeed. 4. PYROCEPHALUS NANUS. Pyrocephalus nanus (Gould) ; Salvin, t. c. p. 492. No specimens of these Ruby- crowned Flycatchers have been before recorded from Charles Island, though Dr. Habel says that the species was found on all the islands visited by him. Commander Cookson has sent five specimens, two of which, now that they are made into skins, are yellowish where the adults are red ; this is probably owing to the action of the spirit upon the plumage, and does not point to the specific distinctness of the Charles-Island bird. A young male in changing plumage shows a decided shade of red appearing on the under surface. II. REPTILES. By ALBERT GTJNTHER. The two species of Tortoises (Testudo microphyes from Albemarle, and Testudo abingdonii from Abingdon Island) will be fully described and figured in the author's forthcoming work on Gigantic Land Tortoises. Only five species of Lizards are known from the archipelago, of all of which specimens were obtained by Commander Cookson. For a full description and figures I refer to the excellent paper recently published by Dr. Steindachner ('' Die Schlangen und Eidechsen der Galapagos Inseln," Festschrift der zool.-bot. Ges. Wien, 1876, 4to). Their distribution in the archipelago is as follows:- |