[61] 



Adaptation of Ticks 



339 



II. Species of which the females only have been found upon the 

 host, the males being known. 



Species 

 I. hexagonus 



I. hexagonus var. 

 cookei ( <r ? known) 



Geographical 



distribution 

 of tick 



Europe, N. Africa, 



N. & S. America. 



N. America. 



Number of 

 Host's times found 



habits Host thereon 



Erinaceus europaeus ... 9' 



Mustela erminea ... ... 8 



,, vulgaris... ... 7 



,, putorius... ... 6 



„ furo ... ... 2 



Lutra vulgaris ... ... 1 riO 



Meles taxus ... ... 1 



Lepus cuniculus ... ... 1 



Myopotamus coypu ... 1 



Sciurus sp. ... ... 1 



Canis vulpes ... ... 3 ' 



± Canis familiaris ... ... 3 



+ Ovis aries ... ... 1 



+ Sus scrofa ... ... 1 



Homo sapiens ... ... 1 



Lutra ... 



Mustela vison 



Spermopliilus 



Weasel 



Porcupine 



Marmot 



Pocket gopher 



± Dog 



+ Cat 



+ Sheep 



± Canis familiaris ... ... 12 



,, vulpes ... ... 2 



Cotile riparia (bank-swallow) 3 



Mustela furo ... ... 1 J-21 



Meles taxus 



Sciurus ... 



Talpa europaea (larva) 



+ Equus caballus ... 



+ Ovis aries 



I.putus. On marine birds only ( $ only found in nests or beneath rocks and soil near neBts). 



I. canisuga 



Europe, N. 

 erica. 



Am- 



Phalacrocorax verrucosus 



Pygosceles taeniatus 



Spheniscus magellanicus 



Fratercula arctica 



Penguin sp. 



Uria troile 



Sea-gull sp. 



Sula bassana 



Fulmarus glacialis 



Cormorant sp. 



+ 



Europe, N. * S. 

 America, Asia, 

 Australasia. 



Man (occasionally, see text, p. 340) 



