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Show 1877.] MR. R. COLLETT ON PHYLLOSCOPUS BOREALIS. 43 Dr. Gunther read a memoir on the Tortoises collected by Commander Cookson, R.N., during the recent visit of H.M.S. * Peterel' to the Galapagos Islands. Mr. Howard Saunders exhibited a specimen of the Panay Sooty Tern (Sterna ancestheta1), which had been obtained on the British coast on a light-ship, probably either at the mouth of the Thames or of the Medway. This was stated to be the first notice of the occurrence of this bird within British limits. Mr. Sclater called attention to the original and unique specimen of his Manucodia comrii (P. Z. S. 1876, p. 459), now belonging to the collection of the Marquess of Tweeddale, the President of the Society, which, since it was described and figured, had undergone a most efficient " remake " in M r . Bartlett's able hands. The curly feathers of the head, were now much more apparent and better developed than shown even in the woodcut given with the original description, and formed standing ridges over each eye. The tail was not flat, as would appear from the figure (pl. xiii.), but " boat-shaped " as in some of the American Grakles (Quiscalus), i. e. with the median tail-feathers elevated above the lateral. The two middle tail-feathers were very peculiar in construction, being shorter by f of an inch than the next pair, and having the inner webs twisted round over the outer, so as to show their under surfaces. The following papers were read :- 1. On Phylloscopus borealis and its Occurrence in Norway. By ROBERT COLLETT, C.M.Z.S., Conservator of the Zoological Museum of the University of Christiania &c. [Eeceived Jan. 15, 1877.] In the summer of 1876, when visiting for the third time during the last six years the province of Finmark, mainly with the object of studying fishes and marine invertebrata, I resolved on devoting a few days to excursions along the forest-clad slopes of the rivers that flow into the great Porsanger, Laxe, Tana, and Varanger fjords. Among the more southern of the vertebrate species occurring here in considerable numbers, I hoped to light upon forms not hitherto observed in those regions (the most northerly of our country), and further elucidate the question as to what influence their occurrence in different degrees of latitude exerts on their outward structure and general habits. These parts of Finmark having never before been visited by any naturalist, it struck m e as not impossible that I might 1 See P. Z. S. 1876, p. 664. |