230 



1219. The skeleton of a small species of Albatros (Diomedaa melanophrys). 



The number of vertebrae between the skull and sacrum is 20, the last seven of which sup- 

 port moveable ribs : the first two pairs are free and floating ; the succeeding five pairs are 

 attached by hsemapophyses to the sternum ; the last two pairs of ribs are attached to the 

 sacral vertebrae, the last of which is not directly united to the sternum. 



Mm. Gould. 



Genus Procellaria (Petrels). 



\ 



1220. The skeleton of the Cape Petrel (Procellaria capensis). 



The number of vertebrae between the skull and the sacrum is 20, of which the last five 

 support ribs articulated by hsemapophyses with the sternnm ; this bone corresponds in form 

 with that of the Albatros. The furculum is relatively stronger, but forms a narrower and 

 more angular arch. 



Mus. Brookes. 



1221. The dried head of the Cape Petrel (Procellaria capensis). 



Presented by W. Bullock, Esq. 



1222. The skull of the Giant Petrel (Procellaria giganted). Hunterian. 



1223. The dried head of the Fulmar or St. Kilda Petrel (Procellaria glacialis). 



Hunterian. 



Genus Pujfinus. 



1224. The skeleton of the Short-tailed Petrel (Piiffinus brevicaudus). 



Hab. Green Island, Bass's Straits. 



The number of free vertebrae between the skull and sacrum is 20, the last eight of which 

 support free ribs, a ninth pair of ribs being attached to the first sacral vertebra. This genus 

 is remarkable for the large size and upward development of the epicnemial process of the 

 tibia ; but the procnemial, like the ectonemial ridge, subsides at the commencement of the 

 shaft of the bone. A styliform accessory ossicle is attached to the produced entocondyloid 

 process of the humerus. 



Mus. Gould. 



Genus LOTUS (Gulls). 



1225. The skeleton of the Grey Gull (Larus olaucoides). 



There are 20 vertebrae between the skull and sacrum, the last six of which support ribs. 

 The first rib is free and floating ; the five succeeding pairs are articulated to the sternum by 



