ANOPLURORTJM BRITANNI2E. 85 



liver coloured lines before the eyes, and one semicircular 

 depression at the occiput ; eyes obscure ; antennae pale, 

 tawny, and slender ; trabeculae acute ; prothorax small, 

 transverse, posterior margin circular, centre channelled ; 

 metathorax deep chestnut, posterior margin angular ; ab- 

 domen rather small, oval, lateral margin serrulate, deep 

 liver brown, last two segments chestnut ; legs chestnut ; 

 femora thick. Length . 



For the only specimen of this species which I have seen, 

 I am indebted to the kindness of W. M. Tweedy, Esq. of 

 Truro, who found it upon the Knot (Tringa Canutus). 



27. DOCOPHORUS CINCLI. Denny. ( Louse of the Water 



Ouzel.) 



Plate V. Fig. 8. 



Pale straw colour, and hairy, head somewhat cordate ; 

 metathorax large, posterior margin produced into an angle ; 

 abdomen obovate. 



Head subcordate, slightly produced in front, with an 

 oval depression, a fuscous spot on each side, and one at the 

 occiput ; eyes small and black ; antennae short and thick ; 

 trabeculse slightly curved and conical ; prothorax transverse, 

 angles rounded, with an impressed margin line, base con- 

 cave ; metathorax large, pentagonal, basal angle much pro- 

 duced ; abdomen short, obovate, first segment large, 

 posterior margin angular, the remainder nearly equal, 

 posterior margin deeply sinuated in the centre, ciliated 

 with long white hairs ; legs rather thick. Length . 



Communicated by Mr. Abraham Clapham of Potter- 

 newton, from the Water Ouzel (Cinclus aquaticus), upon 

 which bird I have also found the species myself. 



