46 VISCOUNT WALDEN ON THE BIKDS OF CELEBES. 



Collocalia, G. R. Gray. 



53. Collocalia esculenta (Linn.), Syst. Nat. ed. 12, i. p. 343. no. 2 (1766), ex Rumph. 



Herb. Amb. ; Wallace, P. Z. S. 1863, p. 384. 



Collocalia hypoleuca, G. R. Gray, P. Z. S. 1858, p. 170, " Aru Islands;" Hand-list, no. 749; Ann. 

 Nat. Hist. 3rd ser. vol. xvii. p. 120. 



Hab. Celebes, Timor, Moluccas, Aru Islands ( Wallace). 



Notwithstanding the reasons advanced by Mr. G. R. Gray (I. c), Mr. Wallace's argu- 

 ments in favour of this species being the true Hirundo esculenta, Linn., appear to me to 

 be decisive. Rumphius does not speak of " the concealed white spots on the tail-feathers 

 as if there were one on each " (Gray, op. cit. p. 126). On the contrary, by the expres- 

 sion " only when the feathers are separated the white spots become visible," Rumphius 

 leaves it to be inferred that all the white spots are concealed, and therefore that the 

 middle pair of tail-feathers are immaculate. The statement of Linnaeus that " all the 

 tail-feathers are spotted with white," is an inaccurate rendering of the description given 

 by Rumphius. 



54. Collocalia fuciphaga (Thunberg), Act. Holm, xxxiii. p. 151, pi. 4, "Java" (1772); 



Wallace, P. Z. S. p. 384. 



Collocalia nidifica, var., G. It. Gray, Ann. Nat. Hist. 3rd ser. vol. xvii. p. 119 ; F. Moore, Cat. Mus. 

 E. Ind. Co. i. p. 98. 



Hab. Macassar ( Wallace) ; Java (H esculenta, ap. Horsf.) ; Sumatra (H. esculenta, 

 ap. Raffles); Bourbon, Mauritius (var. francica, Gm.); Neilgherries (H. unicolor, 

 Jerdon, = C. concolor, Blyth) ; Malabar coast and Western Ghauts (Jerdon) ; Ceylon 

 (Layard) ; Darjeeling (Tickell) ; Assam (H. brevirostris, McClelland) ; Bootan (Pern- 

 berton) ; Sikim (Blyth) ; the whole of the Malay islands ( Wallace). 



The further limits of this species depend on the true value of H. vanicorensis, Quoy 

 & Gaim., -=M. leucoplma, Peale. 



Hirundinapus, Hodgson. 



55. Hikundinapus giganteus (V. Hasselt) : PI. Col. livr. xli. pi. 364, "Java" (27th 



August 1825). 

 Chcetura gigantea, var. celebensis, Sclater, P. Z. S. 1865, p. 609, " Menado." 



Hab. Java {type), Sumatra, Celebes (Mus. Lugd.) ; India (Jerdon) ; Ceylon (Layard). 



Dr. Sclater (I. c.) points out differences which distinguish the Celebean Hirundinapus 

 from typical Javan and Sumatran examples. As one of these distinctions he mentions " a 

 well-marked narrow white patch on the front on each side of the nostrils." Dr. Sclater 

 also alludes to the Celebean bird as " a very distinct form." The white frontal marks 

 are also found in the Indian bird, while in a Penang specimen, along with other slight 

 differential characters, Dr. Jerdon (B. of Ind. i. p. 173) found the white frontal patches 

 wanting. This Penang individual thus agreed with the type as described by Temminck. 



