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Show 574 DR. O. FINSCH ON THE BIRDS OF RUK. [Nov. 16, ** Crown of the head flat; snout rather prominent, as long as the diameter of the eye; canthus rostralis distinct; nostril lateral and beneath the latter; at the end of the snout a linear furrow. Body slender; parotids flat and elongate ; tympanum hidden ; temporal region, back, and sides covered with prominent warts ; beneath finely granulate. Fingers and toes short; the latter shortly webbed. No tarsal fold ; palm with one, sole with two small tubercles." " Dark yellowish brown, with irregular longitudinal and transversal black spots. Limbs irregularly barred. Belly brownish yellow, marbled and spotted with black." "Total length 0030 m., length of head 0*008, breadth of head 0*009, fore limb 0018, hand (to the tip of the third finger) 0*006, hind limb 0*028, foot (to the tip of the fourth toe) 0*083." Hab. Taita (East Africa). Brussels, July 31, 1880. EXPLANATION OF THE PLATES. PLATE L. a. Bufo viridis 2 • Noukouss. M. Lataste's collection. b. Upper surface of head of 2 • 1 Man^vschlak I F r 0 m the St* Petersburg c. „ „ 3-J &y '( Museum. d. „ „ 3. Copenhagen. Brussels Museum. PLATE LI. a. Bufo mauritanicus 2- Algiers. M. Lataste's collection. b. „ „ 3- Skull from above. Algiers. M. Lataste's collection. PLATE LII. Bufo regularis, var. B, §. Cape of Good Hope. Paris Museum. 2. A List of the Birds of the Island of Ruk in the Central Carolines. By OTTO FINSCH, Ph.D., C.M.Z.S., &c [Eeceived August 12, 1880.] Ruk, Rug, or, as the natives call it, more correctly, Tug (Hogo-leu of the older charts), is the most important island of the Central Carolines. It consists of several low and high islands, surrounded by a barrier-reef. Of these islands Tol and Ruk are the largest and highest. The zoology of this group of islands is very limited; and, if I am right, Hombron and Jacquinot are the only naturalists who have examined it. The ' Voyage au Pole Sud,' however, gives us only three species of birds as occurring there-namely, Drymophila .rugensis, Myiagra oceanica, and Calamoherpe syrinx; and no other additions have been made since. During m y stay on Ponape it was my privilege to inspect a considerable series of birds collected by Mr. J. Kubary, who spent fourteen months in investigations and collections on this island. I have thought it useful to give a short |