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PALAEOCORAX FORBES. 



THIS genus is founded on cranial characters: Basipterygoid processes 

 of parasphenoid present but rudimentary. The vomer broad, flat, and 

 three-pointed in front. Maxillaries anchylosed to the premaxillaries, 

 the latter anchylosed to the expanded ossified base of the nasal septum. 

 The ossified mesethmoid stretches backward and is lodged in the concavity 

 of the upper surface of the vomer, so that it presents a form intermediate 

 between the complete aegithognathous forms, such as Corvus, and the 

 compound aegithognathous forms, such as Gymnorhina, in which desmogna- 

 thism was superadded by "anchylosis of the inner edge of the maxillaries with 

 a highly ossified alinasal wall and nasal septum " (Parker). 



PALAEOCORAX MORIORUM (FORBES). 



Corvus moriorum Forbes, Nature XLVI p. 252 (1892). 

 Palaeocorax moriorum Forbes, Bull. B.O.C. I p. XXI (1892). 



DR. FORBES says this bird is of about half the size again of a Corvus 

 comix. The principal characters are cranial, and the same as those 

 of the genus. 



Habitat : Chatham Islands, and possibly the Middle Island, New Zealand. 

 Many skulls and bones in the Tring Museum. 



PALAEOCORAX ANTIPODUM FORBES. 



Palaeocorax antipodum Forbes, Ibis 1893, p. 544. 



THIS is said to be distinguished from P. moriorum by its considerably 

 smaller size. Habitat : North Island, New Zealand. 



