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 \he fourth degree; and 

 that of the Beaver to the Cojqju* (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 

 fom-th degree, whilst that of the "Wombat to the Rodentia might 

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

 the Phalan(/istid(B, 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 fu-st degree. The affinity of the Monotremata to the 

 class Reptilia would be several degrees fui'ther removed than that 

 of the Echidna to the Ornithorhijnclius. 



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 

 DrmniTiond, at that time I beheve 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 nomenclatm^e 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 occurred in 

 Britam.— H. E. S.] 



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

 Roden t order. 



