(578 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxxv. 



Geographical distribution. — Islands of Singapore, Lingga., and 

 Bintang, off the southern end of the Malay Peninsula. 



Of the several forms of Ramphalcyon capensis, this new one seems 

 to be most closely allied to Ramphalcyon c. sodalis, but differs by 

 reason of its inferior size, and darker, more ochraceous pileum. It 

 is larger, with a more ochraceous pileum, and much brighter, more 

 bluish back, wings, and tail than Ramphalcyon c. simalurensis ; while 

 it differs so greatly from both Ramphalcyon c. burmanica and /?. c. 

 gurial in its smaller size, more ochraceous pileum, and much brighter, 

 darker, more bluish back, wings, ami tail, that it is separable at a 

 glance. It is somewhat similar to Ramphalcyon capensis cyanop- 

 teryas, but has the back, wings, and tail much less bluish, and the 

 pileum usually lighter; it differs from Ram phaleyon capensis nesoccn 

 in its smaller size, darker, more ochraceous pileum, more deeply and 

 uniformly colored lower surface, and rather less bluish wings; and 

 it is very unlike Ramphalcyon capensis isoptera, on account of its 

 much brighter, more bluish back, wings, and tail, more ochraceous 

 pileum, and darker, more uniform under parts. 



It may seem unwise to describe another form of Ramphalcyon 

 capensis from so near the type-locality of Ramphalcyon c. malaccen- 

 sis, but the birds from Singapore, Lingga, and Bintang islands are 

 clearly not R. c. ?nalaccensis, of which the Museum has a good series 

 from the Malay Peninsula, nor are they R. c. capensis; and although 

 in fact somewhat intermediate between these two, are yet different 

 enough to be worthy a name. So far as it is possible to tell from 

 the limited series now at hand, the birds from all three of the above- 

 mentioned islands are identical. 



RAMPHALCYON CAPENSIS MALACCENSIS (Sharpe;. 



Pelargopsis malaccensis SiiARri:, Proc. Zool. Soc. Lond., 1S70, p. 67 (Ma- 

 lacca, Malay Peninsula). 



Subspecific characters. — Similar to Ramphalcyon capensis hydro- 

 phila, but pileum much darker and much less mixed with ochraceous. 



Measurements. — Six males'. Wing, 137.5-146 (average, 141.5); 

 tail, 80-94 (average, 89.9) ; exposed culmen, G8.5-75 (average, 71.2) : 

 tarsus, 16-18 (average, 16.8). Three females: "Wing, 147-15(> (aver- 

 age. L52.8); tail, 98-100 (average, 99.3) ; exposed culmen, 73-7s.:> 

 (average, 76.3) ; tarsus, 18.5-19 ( average, '18.8) mm. 



Type-locality. — Malacca, Malay Peninsula. 



Geographical distribution. — Malay Peninsula south of Tenasse- 

 rim. 



This well-marked race may easily be distinguished from Ramphal- 

 cyon ca pensis capensis by its much darker, less ochraceous pileum, 

 and more deeply colored, more uniform lower surface; from Ram- 



