C H E L I D O N D A S Y P U S , 7}//
B L A K IS T O N ’S M A R T IN .
CH K IjID O N d a s y p u s ,
C h e lk lo n d a s y p u s , B p . C onsp, i. p . S-IS (18.50, e x T em m . M S .) ; I lo r e t . & Moove, C at.
B . B .I . Co. M u s . i. p . 3 8 1 (ISo -l) ; C ra y , IIan d -1 . E . i. p . 7 1 , n o . 88 3 (18C9) ;
D r e s s e r B . E u r . iii. p . 4 9 8 (1 8 7 5 ) ; S h a rp e , C a t. B ird s in B r it. M u s . x , p . 91 (18 8 5 ).
C h e lid o n h la k is to u i, Sw iu li. P . Z. S. 1 8 0 2 , p. 3 2 0 ; id . I b i s , 1863, p . 9 0 ; W h itc ly ,
I b is , 1 8 0 7 , p . 1 90 ; G r a y , IIan d -1 . B . i. p . 74, n o . 8 82 (1S 0 9 ) ; Sw m h . I b is , 1874,
p . 1 5 2 , p l. v ii. fig. 1 ; id . Ib is , 1 8 7 5 , p . 4 4 8 ; B la k is t. & P r y c r , Ib is , 1 8 7 8 , p . 231 ;
iid . B . J a p a n , p . 1 3 9 (1 8 8 2 ) ; J o u y , P r . U .S . N a t. M u s . i. p . 2 90 (18 8 2 ).
E e lic h o n (?) d a s yp u s . S a lv a d . Ho c . B o rn . p . 127 (1874).
R ir u n d o d a s y p u s , S e eb o hm , H i s t . B rit. B . ii. p . 1 7 9 (1883).
C /n s a b c a u d a lib a s a lb is ; rcctrico ex tim á conco lo re ; supracnnd.nmrns lo ngloribiis nig ris, rc liq .iis albi»;
monto snnimo c t gonis b a s a litc r iiig ris ; corpore su b tñ s fumoso lav.ato.
Hah. in iiisn lá ‘ B orneo ’ dictfi e t in iu su lis J ap o n ic is.
A ih d t male (tv p e o f species). Gen e ra l colour above clnll p u rplish b lu e , w ith w h ite bases to th e fe a th e rs ;
M-ing-covcrts a n d q uills b la ckish n ith a s lig h t b lu e gloss ; rum p and up p e r ta il-c o v c rts p u re white,
with narrow dusky sh a ft-lin e s ; th e lo n g u p p e r ta il-cove rts a n d ta il-fe a th e rs blackish with a fa int
blue gloss ; ta il very s iiglitly forked ; he ad like th e ba ck ; lores a n d fe a th e rs b elow th e eye black ;
e ar-coverts d u ll p u rplish blue , as also th e sides o f tlie ne ck and sides o f u p p e r b re a st, th e la tte r
slig h tly m o ttled witli wliite bases ; fore p a rt o f cliceks and a sp o t a t tlic base o f th e ch in b la ck ;
Illude r p a r t o f cheeks aud u n d e r su rfa c e o f body c re amy bull’, washed with smoky In-owii o n th e
b re a st a n d flanks, with a l ittle p u re r wliite on tlie fo re neck a n d ab d om en ; u n d e r ta il-co v e rts
smokv b rown, broadly edged with w hitish, th e lo n g cove rts bla cke r, w ith bro ad whitisli e d g in g s ;
axillaries and u n d e r wing-coverts d a rk b rown, th e small cove rts n e a r th e edge o f th e wing edged
w ith p a le smoky brown ; quills d u ll ashy brown b e low : “ bill b la c k ; iris b la c k ” ( / / . U ld tfly ) .
To ta l len g th 4-6 inches, culmen O'S, wing 4 T , ta il 1-75, ta rsu s 0-5. {M w . Lu yd .)
A d u lt fem a le . S im ila r to th e ma le in colour, b u t with one o f th e c en tra l lo n g u p p e r ta il-co v c rts smoky
brown, with a b la ck sh a f t aud a whitish ma rg in a t th e tips ; th e u u d c r surfa c e o f th e body m uch
w hite r, with a smoky b uff tin g e on th e th ro a t, abdomen, and sides o f body ; th e u n d e r ta il-co v c rts
white witli a bla ck ish sh a ft-s tre ak . Total len g th 4-7 iiiclies, culm cn 0-35, wing 4 '3 , ta il I'H ,
ta rsu s 0-45. {Mus. L u yd .)
Hab. B o rn e o ; J a p a n . Do u b tle ss oc cu rrin g in inte rv en in g lo c a litie s d u rin g m igra tion.
B l .vkiston’s Alai-tiii is e a s ily d is tin g u is h e d from i ts o th e r P a lie a r c tic a llie s b y th e b la c k
o n th e c h ill a n d b a s e s o f th e ch e ek s , a n d h y th e sh a p e o f th o t a i l , w h ic h is m u c h less
fo rk e d t h a u iu C h e lid o n u rhica o r C. cashm ir ien s is . I t was o rig in a lly d e s c rib e d from