APPENDIX C. 557 



Ixodes or Tick. — Mr. Evans has also recently found a 

 formidable Tick, Ixodes putus, Cambridge {— I. horealis, K. 

 and N.) on a Gannet from the Bass Rock, of which he has given 

 an enlarged figm'e from a St. Kilda specimen, by which the 

 creatm'e may be recognised (" Annals of Scottish Natural 

 History," 1906, p. 85). 



