Contents {continued). 



Page 



Mr. C. L. Jackson. Exhibition of a skull of a female Sea-lion (Of aria stellcri ?) 4(50 



Mr. Sclater. Exhibition of, and remarks upon, a collection of birds forwarded to him by 



Dr. A. Doring 4(>H 



1. A Description of the Vessels of the Neck and Head in the Ground-Hornbill (Bueorvus 



abysfiinicus). By W. Ottley, F.R.C.S., Demonstrator of Anatomy at Univ. Coll. 

 Loncl 4*;i 



2. On the Specific Identity of the British Martens. By Edward R. Alston, F.L.S., 



F.Z.S., &c 468 



3. On the Terrestrial Mollusca collected in Costa Bica by the late Dr. W. M. Gabb, with 



Descriptions of new Species. By George French Angas, C.M.Z.S., F.L.S., &c. 

 (Plate XL.) 47;, 



4. On the Birds collected by the late Mr. T. K Salmon in the State of Antioquia, United 



States of Colombia. By P. L. Sclater, M.A., Ph.D., F.R S., Secretary to the Society, 

 and Osbert Salvin, M.A., F.R.S. (Plates XLI.-XLIII.) . . 486 



June 17, 1879. 



The Secretary- Report on the additions to the Society's Menagerie in May 1879. (Plate 



XLIV.) , :. '.....550 



Mr. Sclater. Exhibition of, and remarks upon, a skin of Am glauca 551 



Prof. Flower. Exhibition of, and remarks upon, the skull of a female Otaria (Otaria ■■gillenpii) 651 



Mr. C. G. Danford. Exhibition of, and remarks upon, some antlers of Deer from Asia Minor. 552 



Hans, Graf von Berlepsch, C.M.Z.S. Exhibition of, and remarks upon, two varieties of the 



Long-tailed Titmouse 552 



Dr. J. Murie. Notice of a memoir on the Manatee 552 



Mr. F. D. Godman. Exhibition of, and remarks on, a drawing of the Manatee 552 



Prof. Newton. Exhibition of, and remarks upon, some bird-skins obtained by Mr. E. 



Newton, C.M.Z.S., in Jamaica 552 



Prof. Garrod. Notice of a memoir on the brain and other parts of the Hippopotamus . . 553 



1. On the Mollusca procured during the ' Lightning' and ' Porcupine ' Expeditions, 1868-70. 



(Part II.) By J. Gwyn Jeffreys, LL.D., F.R.S., F.Z.S. (Plates XLV, XL VI.) . . 55:5 



2. On the Birds collected in Bolivia by Mr. C. Buckley. By P. L. Sclater, M.A., Ph.D., 



F.R.S., and Osbert Salvin, M.A., F.R.S ' 5S$ 



3. On the Acanthomas leucopus of Gray. By Edward R. Alston, F.L.S., F.Z.S., &e f,45 



4. On some African Species of the Lepidopterous Genus Papilio. By W L. Distant 



(Plate XLVII.) .' G47 



5. Note on the Mechanism of Respiration as well as of the Retraction of the Head and ' 



Limbs in certain Chelonia. By A. H. Gaurod, M.A., F.R.S 649 



6. On Acomus inornatus, Salvad. By T. Salvadori, C.M.Z.S. (Plate XLVIII.) 051 



7. Notes on some hitherto unrecorded Diurnal Lepidoptera, from Duke-of-York Island 



New Ireland, with Descriptions of some apparently new Species. By F. Du-Ca.ne 

 Godman and Osbert Salvin _ gen 



8. Observations on the Characters of the Echinoidea. — II. On the Species of the Genus 



Tripieiistes, Agassiz. By F. Jeffrey Bell, B.A., Magdalen College, Oxford Zoo- 

 logical Department, British Museum, F.Z.S. (Plate XLIX.) 655 



