40 ON A COLLECTION OF ntRDS. 



73. Hirundinapus giganteus. 



Cypselus giganteus, Temm. P. C. IV. 364 ('1825). 



Chaetiira gigantea, Sclat. Cypselidae , P. Z. S. 1865, p. 608. 



(Sutnatra, Mus. Lngd.). 

 Hirundinapus giganteus, Salvad. Ucc. di Borneo, p. 124 (1874). 



1 specimen (rf). 

 This specimen is not different from our typical specimen 

 with which I compared it, and the rust}^ brown lores are 

 distinctly visible. 



» Iris brown , bill black , feet slaty. Native name : La- 

 jang gedang." 



74. Hirundinapus Klaesii, spec. nov. 



H. nudipedi similis, sed minor ; mentum gulaque totis, plumis 

 occipitis et nucliae dimidio hasali griseo hrunneis. 



Very similar to H. nudipes Hodg., but considerably 

 smaller. Chin and throat, base of the feathers on occiput 

 and hind neck, and inner web of the innermost secondaries 

 grayish smoky instead of white. Entire crown, down to 

 the base of the bill , lores , sides of head and neck , occi- 

 put, hind neck, lesser wing-coverts, outer web of inner- 

 most secondaries, a stripe running from the base of the 

 tibiae to the rump , rurap and upper tail-coverts glossy 

 bluish green , scapularies and back smoky brown , beco- 

 ming pale straw-color towards the centre of the back ; 

 upper surface of wing and tail blackish brown with a so- 

 mewhat purplish gloss, inner edge of quills, lower surface 

 of wing and tail , chest , breast , abdomen , flanks and thighs 

 smoky brown, a stripe from the base of thighs to the root 

 of the tail and under tail-coverts pure white ; the well de- 

 veloped spines to the tail-feathers like in H. nudipes. 



))Iris dark brown, bill black, naked tarsi , toes and claws 

 brown." 



The comparative measurements of both species in ques- 

 tion are as follows: 



Long. tot. alae cauda spin, culmen tarsi 



H. nudipes 18 cm. 19 5,6 0,4 0,9 1,6 



H. Klaesii 16,5 => 17,2-17,4 5,1 0,6 0,75 1,6 



Notes from the Leyden JMuseum, "Vol. IX. 



