1871.] ON BIRDS FROM THE PACIFIC ISLANDS. 21 



posterior extremity ovate ; anterior extremity rounded ; internal 

 margin simple, reddish purple within. 



Length 3| lines, alt. 3, lat. If line. 



Hab. Port Jackson ; dredged near the " Sow and Pigs " {Brazier). 



33. Perna confusa, n. sp. (Plate I. fig. 33.) 



Shell transverse, concentrically finely striated, olive-brown, paler 

 below the umbonal ridge ; umbones tumid, approximate, and almost 

 terminal, the umbonal ridge much raised and roundly angulate ; 

 dorsal margin straight, forming an angle with the posterior margin, 

 which is arcuate above and rounded at the end ; ventral margin 

 slightly convex anteriorly, incurved behind. 



Length 12 lines, alt. 6, lat. 5 lines. 



Hab. Lane Cove River, Port Jackson. 



Something like P.fortunei, but four times the size, more pinched 

 and arcuate, and different in colour. 



I adopt the original generic appellation of Perna as applied by 

 Messrs. H. & A. Adams to this genus, which has priority over Mo- 

 diola and Vohella. The Perna of Bruguieres (1792) is Isognomon 

 of Klein (1753). 



34. Limopsis brazieri, n.sp. (Plate I. fig. 34.) 



Shell depressedly subtriangularly ovate, subequilateral, whitish, 

 concentrically finely ridged, and very faintly radiately striated, covered 

 with a light brownish epidermis, which extends beyond the margin ; 

 umbones submedian, rather prominent. 



Length 2\ lines, alt. 2, lat. l£ line. 



Hab. Dredged at the "Sow and Pigs," Port Jackson {Brazier). 



N.B. I have placed the typical specimens of all the foregoing spe- 

 cies in the British Museum. 



3. On a Collection of Birds from Savai and Rarotonga Islands 

 in the Pacific. By Dr. G. Hartlatjb, F.M.Z.S., and 

 Dr. O. Finsch, C.M.Z.S. 



[Received January 2, 1871.] 

 (Plate II.) 



The meritorious efforts of Mr. Johann Cesar Godeffroy, head of 

 the well-known Hamburgian firm, to explore, in connexion with his 

 mercantile undertakings, various parts of our globe to which his 

 vessels resort, have been again successful as regards the avifauna of 

 the Pacific. We have had the pleasure of receiving two small col- 

 lections of birds : one from the island Savai or Savaihi, made by 

 Mr. Kubary ; the other from the small island Rarotonga, made by 

 Mr. A. Garrett. 



Savai, the largest of the islands of the Navigator group, in which 



