N0VITATE3 ZOOLOGICAE XXI. 1914. 293 



31. Merops ornatus Lath. 



Merops ornatus Latham, Ind. Orn. Suppl. p. xxxv (1801 — " Nova HoIIandia "). 



? ad. Manns, 7. ix. 1913 (No. 5992). 



This specimen is in perfect plnnaatje, just after its moult. No feathers are 

 moulting, but one of the elongated central rectrices is missing. 

 Cf. IStresemann, Nov. Zool. xxi. pp. lil.")-109. 



32. Hemiprocne mystacea mystacea (Less.) 

 {Macropteryx mystacea mystacea auct.) 



Ci/psdux nu/slweim Lesson, Voj/. Coqu,, Zonl. i. p. G47 (182:1 — New Guinea). 



(? ? ad. Manns, 8., 9. x. 1913 (Nos. 0224, 622S). 



These two specimens belong most probably to //. m. mystacea. The wings of 

 the male are damaged at the tip; those of the female measure 224 and 225 mm., 

 measurements which belong to either //. m. myistacea from Papua, Waigin and 

 Batanta (225-243), or to H. m. confirmata from the Molnccan Islands (210-232 mm.). 



The abdomen appears to have rather little white in the two skins from Manus, 

 but more material must be examined to be certain of the constancy of this very 

 slight difference. (Cf. Stresemann, i\'or. Zool. xxi. pp. 110, 111.) 



33. Collocalia leucopygia leucopygia Wall. 



Oilloculia leucopygia Wallace, Proo. Zool, Soc. Loiuhm, 18G3, p. 384 (New Caledonia). 



? ad. Manus, 29. ix. 1913 (No. 6178). 



" Iris dark brown ; bill black ; feet dull black." 



Tliis specimen agrees well with our three examples from Burn, wliich appear 

 to be ij^uite like the typical examjjies from New Caledonia. (Cf Soc. Zool. xxi. 

 p. 114.) The wing of the Manus specimen measures 1O0'5 mm. 



34. Collocalia esculenta stresemanni subs]!, nov. 



[Iliruin/ii I'.iculenta Linnaeus, Si/st. Nal. ed. x., i., p. 191 (1758 — "China," errore, patria suljstituta 

 Amboina ; cf. Oberholser, Proc. Acad. Nat. Sc. Philaddjihia Iviii. p. 211), 190G).] 



Similar to C. esculenta esculenta, but the feathers of the rump with wide 

 white borders all round, some white on both webs except for a metallic bhukish 

 green sjiot at the tiji of the inner web, and some of the smaller quite lateral ones 

 entirely white. The outermost pair of rectrices have long narrow white lines along 

 the basal portion of the shaft, while on the following two pairs they extend farther 

 along. The metallic greenish colours of the upperside are perhaps not quite as bright, 

 and not mixed with steel-blue, as in most specimens of C. esculenta esculenta, but 

 more as in C e. neglecta, though it is of course doubtful if this is of any importance, 

 as only one specimen is to hand. The wing measures about 09 mm. Tlie tarsus 

 is entirely bare of feathers as in G. e. esculenta, while in C. e. neglecta a few single 

 feathers are to be seen on the basal portion of the tarsus. 



Only a single male from Manns, 13. ix. 1913 (No. 6051). Iri.s dark brown; 

 bill black ; feet flesh-colour. 



[Since the appearance of my treatment of the genus Collocalia in Cat. B. 

 Brit. Mus. xvi. 1892, p. 406, and Tierreich, Lief. i. 1897, two important articles 

 on these Swiftlets have appeared : first and foremost Oberholser's Monograph 



