]96 Letters, Extracts, Notes, ^t. 



Psitt. p. 68) also describes " Psittacus sparmanni Vaill." as 

 " toto corpore cseruleo, collo antico c?erulescenti-albo, rostro 

 ])edibusque rubris/^ These descriptions may prove the 

 correctness of Dr. Finsch's presumption that the individuals 

 with red corneous parts and white on the throat are the 

 young of C. taitianus — a conclusion drawn by Count Salva- 

 dori as regards the specimen figured by Messrs. Forbes 

 and Robinson ('Ibis/ 1905, p. 413). On the other hand, I 

 cannot agree with Dr. Finsch's conjecture (/. c.) that Levail- 

 lant's remarks on the original of his figure are erroneous, the 

 figure being merely a copy of Sparrman's plate, especially 

 as Mr. Wilson's discovery has proved the existence of a 

 uniformly-coloured blue species with a darker shade on the 

 under surface. Therefore, in my opinion, the genus Cori- 

 jihilus, although rapidly approaching extinction, contains at 

 present the following three species : — 



1. C. TAITIANUS Gmelin (1788). 



" La Perruche Sparrman" Levaillant (1841). 

 Psittacus sparrmani Bechstein (1812). 



2. C. CYANEus Sparrman (1787). 

 C. cijaneus Scott Wilson (1907). 



3. C. ULTRAMARINUS Kuhl (1820). 



I am. Sirs, yours &c., 



Kgl. Zoologisches Museum, -^« Jacobi. 



Dresden, Zwinger, 

 Oct. 4, 1907. 



Sirs, — We are engaged upon a work dealing with the 

 Ornithology of Sussex, and are verj' anxious to secure the 

 co-opei'ation of any of your readers who may be interested 

 iti the subject. We shall therefore deem it a great act of 

 courtesy if all observers, conversant with the Sussex avifauna, 

 Avill kindly furnish us with notes and memoranda. 



Particularly would we ask for information concerning not 

 only the occurrence of rare and casual migrants (in spring, 

 autumn, and winter), but also on the distribution — and this 

 is a great point — of all the scarce and local breediny species. 



