CHELIDON DASYPUS, Bp. 



BLAKISTOX'S MARTIN. 



Clielidon dasypus, Bp. Consp. i. p. 343 (1850, ex Teram. MS.); Horsf. & Moore, Cat. 



B. E.I. Co. Mus. i. p. 384 (1854) ; Gray, Hand-1. B. i. p. 74, no. 883 (1SG9) ; 



Dresser, B. Eur. iii. p. 498 (1875) ; Sliarpe, Cat. Birds iu Brit. Mus. x. p. 91 (1885). 

 Chelidon hlaUstoui, Swinh. P. Z. S. 1802, p. 320; id. Ibis, 1863, p. 90; Whitcly, 



Ibis, 1867, p. 196 ; Gray, Hand-1. B. i. p. 74, no. 882 (1869) ; Swiuh. Ibis, 1874, 



p. 152, pi. vii. fig. 1 ; id. Ibis, 1875, p. 448 ; Blaldst. & Fryer, Ibis, 1878, p. 231 ; 



iid. B. Japan, p. 139 (1882) ; Jouy, Pr. U.S. Xat. Mus. i. p. 290 (1882). 

 DeUchou (?) dasiipus, Salvad. Ucc. Born. p. 127 (1874). 

 Hirundo dasijpus, Seebohm, Hist. Brit. B. ii. p. 179 (1883). 



C^. subcaudalibus albis ; rectrice extimfi concolore; supracaudalibus longioribus iiigris, rcHquis albis • 

 mcnto suramo et genis basabter nigris ; corpore siibtus fumoso lavato. 



Hab. in insula ' Eorneo ' dicta ct in insulis Japonicis. 



Adult male (type of species). General colour above dull purplish blue, witb white bases to the feathers ; 

 wing-coverts and quills blackish with a slight blue gloss ; rump and upper tail-coverts pure white, 

 with narrow dusky shaft-lines; the long upper tail-coverts and tail-feathers blackish with a faint 

 blue gloss ; tail very slightly forked ; head like the back ; lores and feathers below the eye black ; 

 ear-coverts dull purplish blue, as also the sides of the neck and sides of upper breast, the latter 

 slightly mottled with white bases; fore part of cheeks and a spot at the base of the chin black; 

 hinder part of cheeks and under surface of body creamy buff, washed with smoky brown on the 

 breast and flanks, with a little purer white on the fore neck and abdomen ; under tail-covcrts 

 smoky brown. Ijroadly edged with whitish, the long coverts blacker, with bi'oad whitish edgings ; 

 axillaries and under wing-coverts dark broivn, the small coverts near the edge of the wing edged 

 with pale smoky brown ; quills dull ashy brown below: "bill black; iris black" [H. Tf'/i/tc/i/). 

 Total length l-G inches, culmen 0-3, wing 1-1, tail 1-75, tarsus 0-5. (Mi/.<t. Luyd.) 



Adult female Similar to the male in colour, but with one of the central long upper tail-coverts smoky 

 brown, with a black shaft and a whitish margin at the tips ; the under surface of the body much 

 whiter, with a smoky buff tinge on the throat, abdomen, and sides of body ; tlic under tail-covcrts 

 white with a blackish shaft-streak. Total length 1-7 inches, culmen (I-;?,"), wing I-;?, tail I'S. 

 tarsus 0"45. [Mus. Lnrjd.) 



Hah. Borneo; Japan. Doubtless occurring in intervening localities during migration. 



Blakiston's Martin is easily distinguished from its other Palrcarctic allies liy llie lilack 

 on the chin and l)ases of the checks, and by the sliajx- of tbi' tail, wbidi is iimcli less 

 forked than ill Chelidon urbica or C. caishmiriens'n^. It was orininallv (b-eribed from 



