BIRD-INFESTING MALLÜPHAGA OF JAPAN. 



203 



t 3 



a very slight elevation nearer to base 

 than to distal end of the segment ; 

 second segment small, about one-third 

 j> ^ as long as the first ; third segment 



\ ^ ^ smaller than the second, with a claw- 



like extremity; fourth and fifth segments 

 cylindrical, the fifth longer than the 

 m Àfi ^ fourth ; tip of third segment light brown, 



g rest of antennae colourless. 



. A Prothorax with sides more expanded 



^ ^ than in the female. Abdomen relatively 



small, 1.65 mm. long (in the female 2.35 

 - mm.); postero- lateral angles of each 



I ^ segment much protruded ; genitalia in- 



distinct, long; and slender, reaching from 



J J ~ fifth segment to the middle of eighth 



m g* — 



: segment; markings of abdomen very 



different from those of female ; ground 

 colour whitish, with very narrow and 

 p- i clear lateral bands which send out ex- 



Lipeurm cmfidens Kellogg, male. X30 pandjng process inwards at the posterior 



end ; lateral blackish blotches round in segment I, elongate in segments II- 

 VI, again round but smaller in segments VII and VIII ; the last segment 

 conical, almost colourless, asymmetrical, the summit slightly turned to the 

 right side and with three prickles on both sides. 



3. Lipeurus tnacilhe tin tji Kellogg and Kuwana. 



Kellogg and Kuwana, Proc. Acad. Nat. Sci., 1900, p. 155, pl. VII, fig. 3. 



Five females and a young were collected from specimens of Audubon's 

 albatross, Diomcdea nigripes (Tiausu Id., Loo-choo, May 1900; Bonin Is., 

 1892 ; Prov. Awa, March 19, 1894.). One more female from a specimen of 

 Steller's albatross, Diomcdia albatrus (Prov. Awa, March 19, 1S84). 



