1398.] Oy BIRDS FROM :N-URTTI ATTD JfORTH-WEST AUSTRALIA. 353 



Three species of Grazelles seemtobefoanclinTunis — I have seeu 

 them all, either alive or dead : the Coiiiinou Grazelle ( Gazella doroas), 

 the Mountain Grazelle (G. cuvleri), and Loder's Gazelle {G. loderi). 



The creatures represented in the numerous Roman mosaics and 

 frescoes include — besides most of those mentioned — the Ostrich 

 (now extinct in Tunisia) and the African Elephant. The latter is 

 represented unmistakably. Butthei'e is no reason why it may not 

 have been imported from Numidia (modern Algeria) rather than 

 have been at that time a mammal indigenous to the relatively bare 

 plains of Tunisia, where it would miss the necessary forests. 



It will be remembered that Harmo, the Carthaginian, who 

 made an expedition along the Morocco coast in about 520 B.C., 

 records having seen large herds of Elephants in the R. Tensift, 

 not far from the present capital of Morocco. 



2. On some Pigeons and Parrots from North and North- 

 west Australia. By Prof. E. Collett, P.M.Z.S. 



[Keceived April 7, 1898.] 

 (Plates XXVni. & XXTX.) 



Dr. Knut Dahl, a young Norwegian naturalist who, during 

 the years 1894-95, lived in North and North-west Australia, and 

 occupied his time in collecting objects of natural history for the 

 Zoological Museum at Christiania, returned home in the spring of 

 1896 with a valuable collection of vertebrates and invertebrates. 

 The Mammals of this collection have already been worked out \ 

 and Mr. Gr. A. Boulenger has given an account of some new 

 Saiirla ^ contained in it. 



On a preliminary examination of the considerable collection of 

 birds, I found, amongst the Psiitaci and Cohimhce, examples of 

 three species hitherto not described, of which I append short 

 descriptions, together with some remarks on one or two other 

 interesting forms. 



The localities in which these species were found are Ai-nhem 

 Land (North Australia)^ and Roebuck Bay, situated somewhat 

 further to the south (North-west Australia). 



1. Peteophassa albipen]vis Grould (1840). 



Petrophassa aVnpennis, Salvador!, Cat. B. Br. Mus. vol. xxi. 

 p. 530 (1893). 



One specimen from Victoria Eiver, 4th xVpril, 1895 (sex un- 

 known). 



1 CoUett, " On a Collection of Mammals from North and Noi-th-west 

 Australia" (Proc. Zool. Sof. Lond. 1897, p. 317, with plate). 



- Boulenger, "Descriptions of four new Lizards from Eoebuck Bay, N.W. 

 Australia, obtained by Dr. Dahl for the Christiania Museum," Ann. Mag. Nat. 

 Hist. ser. 6, vol. xviii. Sept. 1896. 



'■' A few short remarks on these localities are given in Proc. Zool. Soc. Lond. 

 1897, pp. 317-318. 



