NO. 1318. BIRDS OF NORTHWEST SUMATRA— RICHMOND. 509 



Family MUSCICAPID.E. 



MUSCITREA GRISOLA (Blyth). 



T\_ephrodorni'f\ grisola Blyth, Journ. Asiat. Soc. Bengal, XII, Pt. 1, 1843,]). 180* 

 ("near Calcutta "). 



One female from Simalur, where it was "not plentiful." Length, 

 165; wing, Si); eulmen, 14.5 mm. This specimen agrees fairly well with 

 the description of PacliyceplialavandepoUi Finsch," a species from the 

 Batoe Islands said to be nearl^v related to M. cjrisola. Our bird, how- 

 ever, can be matched b}^ examples from Lingga and the Natunas both 

 in color and dimensions. 



HYPOTHYMIS ABBOTTI Richmond. 



Hypothynus ahbottiRicnyioyj), Proc. Biol. Soc. Wash., XV, August 6, 1902, p. 189 

 (Pulo Babi, west coast of Sumatra). 



Seven specimens, from Babi and Lasia. Length, male, 178 to 187; 

 female, 178 mm. 



The male, as originall}^ described, is wholly blue, without the black 

 occipital spot and band across foreneck of II. azurea. The color is 

 bright light cyanine blue (of Ridgway's Nomenclature of Colors), 

 with a tinge of deep campanula blue on breast, abdomen, and sides. 

 Wings and tail black, with a bluish shade above; under wing-coverts 

 and axillaries, dusky gray, with bluish tips; wing feathers, from below, 

 with dusky gray edges. 



Length (in ilesh), 181 mm.; wing, 76; tail, 77; tarsus, 19; eulmen, 

 13 (bill from gape, 20). In another male the wing measures 79 mm. 



"Iris blackish; feet dull leaden blue; bill blue, tip and a narrow 

 line along commissure black; inside of mouth yellow." 



While there is no visible black nape patch, or black band across the 

 chest, the feathers of these areas have black tips on their under 

 surfaces. 



The female has the head, neck, and throat as in the male, but duller; 

 the thighs and bend of wing are of the same color. The remainder 

 of the plumage is brownish black, with a blue wash, most prominent 

 on breast and center of abdomen, less so on back, wing-coverts, outer 

 edges of primaries, and tail feathers. Wing, 78 mm. 



The immature male is like the female, but the thighs are dusky, 

 while the wing-coverts and secondaries (possibly new, adult feathers) 

 are similar to those of the adult male. 



From its solid blue color this species appears to be considerably 

 larger than H. azurea., but in its various dimensions it hardly exceeds 

 specimens of the latter from the Anambas and Tambelans. II. abhotti 

 was "common'' on Lasia, and on Babi it was "the commonest bird." 



«Notes, Leyd. Mus., XX, p. 224. 

 Proc. N. :M. vol. xxvi— 02 35 



