4] 2 Mr. H. M. Drummond : Catalogue of Birds found 



relative rank of the groups whicli present the cases of analogy. 

 The analogy may be more or less remote : thus the case of ana- 

 logy (so often quoted as such), as existing between the Goat- 

 sucker {Caprimulgus) and the Bat — members of different classes — 

 might be regarded as an instance of analogy, say of the fifth de- 

 gree; that of the Otters to the Beavers (animals of different 

 orders of the same class), an analogy of the fourth degree; and 

 that of the Beaver to the Coypu* (both Rodents), an analogy of 

 the third degree : again, the relationship existing between the 

 Whales and Fishes may be one of analogy of the fifth degree ; that 

 existing between the Dugong and the Porpoise may be one of 

 affinity or analogy ; but in either case is less remote than the re- 

 lationship of the Cetacea to the Fishes. 



According to these propositions moreover, the relationship of 

 the Lagostomus to the Marsupiata might be one of affinity of the 

 fourth degree, whilst that of the Wombat to the Rodentia might 

 be one of analogy of the same degree : that of the Wombat to 

 the PhalangistidcB, an affinity of the third degree, and of the 

 Koala to Phalangista, an affinity of the second degree; and 

 lastly, that of Phalangista vulpina to Phalangista Cookii, of the 

 nearest or first degree. The affinity of the Monotremata to the 

 class Reptilia would be several degrees further removed than that 

 of the Echidna to the Ornithorhynchus. 



LI. — Catalogue of the Birds found in Corfu and the other Ionian 

 Islands, also on the coast of Albania ; from Notes made during 

 a sojourn of four years. By H. M. Drummond, 42nd R.H. 

 With Notes by H. E. Strickland, M.A. 



[This valuable paper was read to the Zoological Section at Cork, 

 and being afterwards placed in my hands, I have ventured to ap- 

 pend a few notes before sending it to press. When I was at Corfu 

 in 1835 I had the pleasure of becoming acquainted with Captain 

 Drummond, at that time I believe the only ornithologist in the 

 Ionian Islands. He had even then formed a considerable col- 

 lection, and the following list will show the great extent of his 

 subsequent researches. The nomenclature is that of Temminck^s 

 ' Manuel d^Ornithologie,' and though the names have undergone 

 modifications from later ornithologists, yet there will be no diffi- 

 culty in recognising the species by means of them. I have an- 

 nexed the letter B. to those species which have also occuri'cd in 

 Britain.— H. E. S.] 



* These two animals are essentially modelled upon different types of the 

 Roden t order. 



