178 



cinereo ; dorso, alis cauddque cinereo-fuscis ; rostro pallide vinaceo- 

 cinereo ; cuhnine, ad basin prtesertim, Jlavo. 



Crown of the head, back of the neck, throat, all the under surface, 

 rump and upper tail-coverts pure white ; lores and line over the eye 

 grayish black, gradually passing into the delicate pearl-gray which 

 extends over the face ; back, wings and tail grayish brown ; irides 

 dark vinous orange ; bill light vinous gray, or blueish horn-colour, 

 except on the culmen, where it is more yellow, particularly at the 

 base ; the upper mandible surrounded at the base by a narrow belt of 

 black, which also extends on each side the culmen to the nostrils ; 

 base of the lower mandible surrounded by a belt of rich orange, 

 which extends to the corners of the mouth ; feet blueish white. 



Total length, 31 inches ; bill, 4^ ; wing, 21^ ; tail, 9 ; tarsi, 3. 



Hab. Bass's Straits. 



The above are the dimensions of a female ; the male is considerably 

 larger. 



Nearly allied to, but larger than D. melanophrys. 



Thalassidroma Nereis. Thai, gutture pectoreque fuliginoso- 

 cinereis ; dorso, uropygio tectricibusque caudce cinereis ; abdomine, 

 lateribus et crisso albis. 



Head, neck and chest sooty gray ; lower part of the wing-coverts, 

 back, rump and upper tail- coverts gray, each feather very slightly 

 margined with white ; wings grayish black ; tail gray, broadly tipped 

 with black ; under surface pure white ; irides, bill and feet black. 



Total length, 6^ inches ; bill, ^^ ; wing, 5;^ ; tail, 2^ ; tarsi, 1;^. 



Hab. Bass's Straits, on the south coast of Australia. 



This beautiful fairy-like Storm Petrel is about the size of Thai. 

 Wilsoni, and is remarkable as diflFering from most of the members 

 of the group in having no white on the rump and in the pure white 

 of the under surface. 



Mr. Gould exhibited to the Meeting a new species of Hypsiprym- 

 nus, from Swan River, which he characteiized under the name of 



HypsiPRYMNUs Graii. Hyps . fusco-clnereus ; corpore subtiis al- 

 bescente ; caudd mediocri, fused, flavo lavatd, ad apicem albd; 

 pedibus pallide fuscis ; auribus mediocribus rotundatis. 



unc. lin. 

 Longitudo ab apice rostri ad caudse basin. ... 18 



Cauda 11 6 



■ tarsi digitorumque (sine unguibus) . . 4 3 



ab apice rostri ad basin auris .... 2 4 



— — auris 1 1 



This species most nearly resembles the Hypsiprymnus rufescens of 

 Mr. Gray, but differs in being of an ashy brown colour above, and 

 in having the hairs which clothe the back of the ears of the same 

 general colour as those of the head, instead of black, as in the spe- 

 cies just mentioned. The fur is long, and soft to the touch ; the 

 hairs both on the upper and under parts of the body are of a palish grey 



