Contents (continued). 



February 3, 1891. 

 Tbe Secretarj-. Eeport on the Additions to the Society's Menagerie in January 1891 121 



Dr. Emin Pasha, C.M.Z.S., Letter from, announcing the despatch to the Society of a Collec- 

 tion of Birds 122 



Mr. J. W. Willis-Bund, F.Z.S., Exhibition of, and remarks upon, a specimen of the Collared 



Petrel {(Estrelata torqxuda) shot off the Welsh coast of Cardigan Bay 122 



1. On the Question of Saurognathism of the Pici, and other Osteological Notes upon that 



Group. By E. W. Shufeldt, O.M.Z.S, &c 122 



2. Descriptions of two new Species of Parrots of the Genus Platycercus. By T. Salvador!, 



C.M.Z.S. (Plate XII.) 129 



3. On a second Collection of Birds from the Province of Tarapaca, Northern Chili. By 



P. L. ScLATEE, M.A., Ph.D., F.R.S,, Secretary to the Society. (Plate XIII.) 131 



4. On the Pouch and Brain of the Male Thylacine. By FrwVNK E. Beddakd, M.A,, Prosector 



to tlie Society 138 



Pebrnary 17, 1891. 



Mr. Edward Garrard, Jr. Exhibition of a large head of a Koodoo Antelope {Stfepsiccros 



kudu) 145 



Mr. T. D. A. Cockerell. Exhibition of, and remarks upon, some abnormal specimens of 



Clausilia rugosa 145 



Mr. Boulenger. Exhibition of, and remarks upon, a renewed left pectoral limb of a Froto- 



2)terus aimectcns .- 147 



Mr, Boulenger. Exhibition of, and remarks upon, young specimens and eggs of a South- 

 African Siluroid Eish ( Galeichthys feUceps) 148 



1. On the Probable Existence of a Jacobson's Organ among the Crocodilia ; with Observa- 



tions upon the Skeleton of that Organ in the Mammalia, and iipon the Basi-Mandi- 

 bular Elements in the Vertebrata. _ By G. B. Howes, F.Z.S., F.L.S., Assistant 

 Professor of Zoology, Royal College of Science, London. (Plate XIV.) 148 



2. On the Variation and Development of the Leporine Sternum. By E.. H. Buene, B.A. 



Oxon., P.Z.S 159 



3. Oil the Muscicapine Genus Chasiempis, Avith a- Description of a new Sije-cies. By Scott 



B. Wilson, F.Z.S. , . . . 164 



4. Description of a new Species of the Genus Himationc from the Sandwich Islands. By 



Scott B. Wilson, F.Z.S 166 



•5. On British Remains of Homceosaimis, with Remarks on the Classification of the Ehyncho- 



cephalia. By G. A. Boulenger 167 



6. Preliminary Account of an Earthworm from West Africa referable to a new Genus. By 



Feank E. Beddaed, M.A., F.E.S.E., Prosector to the Society 172 



' ■ On a Functional Ductus Botalli in Nycticorax violaceus and Bafila spinicauda. By Feank 

 Finn, B.A., late Scholar of Brascnose College, Oxford. (Communicated by F. E. 

 Beddaed, F.Z.S., Prosdctor to the Society.) , 176 



