. The birds of British Guiana : based on the collection of Frederick Vavasour McConnell ... . remarks :— The Large Sci?sor4jill Gull{Rht/ncJiops nigra) will at once be known by the peculiarlyflattened (in a vertical direction) and elongated bill from whichits name is taken. Genus LAEUS Lmne, Syst. Xat. 10th ed. i. p. 13G, 1758. Type L. crmi/s LI The characters of this genus, which sejiarate it at oncefrom Sterna, are the short and stout bill, sharply curved uppermandible, and short gonys, the almost square tail, and having aportion of the tibia unfeathered. nn. LARUS. 95 59.

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. The birds of British Guiana : based on the collection of Frederick Vavasour McConnell ... . remarks :— The Large Sci?sor4jill Gull{Rht/ncJiops nigra) will at once be known by the peculiarlyflattened (in a vertical direction) and elongated bill from whichits name is taken. Genus LAEUS Lmne, Syst. Xat. 10th ed. i. p. 13G, 1758. Type L. crmi/s LI The characters of this genus, which sejiarate it at oncefrom Sterna, are the short and stout bill, sharply curved uppermandible, and short gonys, the almost square tail, and having aportion of the tibia unfeathered. nn. LARUS. 95 59. Larus Gull. Larus atriciUa Linn. Svst. Xat. i. p. 136, 1758 (Carolina) ; Quelch,Tiiijehri(2) v. p. 106. 1891 (Georgetown) ; Saunders, Cat. B. XXV. p. 194, 1896 (British Guiana) ; Beebe, Our Search fora AVildemess, p. 134, 1910 (Georgetown Harboui); Brahoiu-ne& Chubb, B. S. Amer. i. p. 35, no. 343, 1912. Xema africiJla Cab. in Schomb. Keis. Guian. iii. p. 761, 1848 (Coast ofBritish Guiana). Adult male. Head and throat slate-brown, eyelids above and below. Fig. 22.—To illustrate the bill with its short

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Keywords: ., bookcentury1900, bookdecade1910, bookidbirdsofb, booksubjectbirds