76 



Tyrrhaptes paradoxus, and five specimens of Mammals (all of \vhich 

 \vere new to the Society's collection), from the Altai Mountains of 

 Siberia, viz. : — 



Meriones opimus, 



'Aspulax Zokar, 



Mustela Allaica, 



Dipus Jaculus, 



Mygate moschata. 



Mr. Gould laid iipon the table a series of Tems, and characterized 

 a new species : — 



Sterna gracilis. St. siimmo capite et nuchd posteriore saturate 



nigris ; lateribus nuchm et parte inferiore seriaceo-ulbis ; pectore 



et abdomine leviter rosaceis ; rostro carnicolore, apice brunneo- 



nigro ; pedibus aureo-fuscis. 



Crown of the head, nape and back of tlie neck dcep black ; sides 



of the neck and all the under surface silky \vhite, with a blush of rosy 



red on the breast and abdomen ; back, M'ings and tail light grey, 



becoming darker on the primaries ; irides brownish red ; bill flesh- 



colour, except at the tip, where it is washed with blackish brown ; 



feet orange-red. 



Totai length, 13 inches ; bill, 2i ; wing, 8į ; tail, 6^; tarsi, |. 

 Hab. The Houtmann's Abrolhos, oflf the western coast of Australia. 



June 24, 1845. 

 No business was transacted. 



