228 ANNALS OF SCOTTISH NATURAL HISTORY 



C. HIRUNDINUS, Curt. 6" and 9 ? ?, C". nrbica, Kennetpans, 

 10, viii. '08. $ and 69?, C. urbica, Coldingham, 25, 

 ix. '08. J. F. Cormack. 



C. NEWSTEADI, Rothsch. 6 6* 6" and 7 9 ? , T. merula, Aberdour, 



20, iv. '07. ? , C. aquaticus, on the Eye, nr. Grant's House, 



14, v. '07. 9, C. aquaticus, Whiteadder, Abbey-St.-Bathans ; 



9, Z. Moris, ibid., 14, v. '07. 2 cJ ^, 9 ? ? in all, taken 



from nests of J 1 . viscivorus, T. parvulus, M. lugubris, nr. 



Loganlea waterfall, 25, v. '07, by R. Cochrane. Abundant, 



Scolopax rusticula, Aberdour, 25, v. '07, James Allan; also 



c? and 3 9 9 , P. cokhicus, ibid. 2 o c? and ??,/'. colchicus, 



Cowdenbeath, 10, vi. '07. 2 9 $ , T. merula, Edinburgh. 



2 c? o% 3 9 9, Accentor modularis, 12, v. '08, z<fo/. 



C. BOREALIS, Rothsch. (See "Ann. Scot. Nat. Hist.," 1908, 

 p. 256-7.) 



CTENOPHTHALMUS AGYRTES, Heller. 3 and 9 , M. sylvaticus-fridari- 

 ensis, Fair Isle, ix. '06. N. B. Kinnear. 6", M. sylvaticus, 

 Windygates, Fifeshire, 27, x. '06 (N. B. K.). n 6" <J, 50 9 9, 

 J/. orcadensis, nr. Stromness, summer '07. G. Ellison. $, 

 J/. amphibius, Abbey-St.-Bathans, 16, v. '08. J. Lawrence. 

 $, Hypudaus glareolus, Coldingham, 25, ix. 08. J. F. Cor- 

 mack. 



HYSTRICHOPSYLLA TALP^E, Curt. $> and 5 ? ? , on M. orcadensis, 

 nr. Stromness, Orkneys, summer '07. George Ellison. 



This very interesting record brings the number of siphonapterous 

 parasites on the Orkney Vole up to five. The others are C. gallince, 

 C. penicilliger, C. mustelce, and C. agyrtes. 



It is too early yet to draw any general conclusions on 

 distribution or the like from the collections made. One 

 fact is, however, very noticeable the preponderance of 

 $ 9 over 6* 6". I have notes of the sex of 1250 specimens 

 of various species, in which the $> $ amount only to 30 per 

 cent of the whole. [While collecting in Orkney Mr. Ellison 

 was struck by the same fact. The difference was even more 

 marked. In 112 examples (of 3 species) 25 were $ 6*.] 

 As regards particular forms the percentage varies. In C. 

 Farreni the sexes are more evenly balanced than in any 

 species which I have taken in numbers. Nearly 40 per 

 cent are c? 6*. Gallina and Newsteadi show rather more 

 than 36 per cent and 29 per cent of 6" 6" respectively. I 

 have the former from 18, the latter from 21, distinct hosts. 



9 WOODBURN TERRACE, EDINBURGH. 



