1870.| MR. R. B. SHARPE ON BIRDS FROM MADAGASCAR. 393 
3 ad. M. supra olivaceus, fronte et capitis lateribus ardesiacis : 
linea lata per oculum eunte nigra: macula parva supraoculari 
et linea a basi mandibule orta et ultra regionem paroticam 
producta pure albis: remigibus nigricanti-brunneis, extus 
brunnescenti-olivaceo lavatis: gula saturate nigricanti-arde- 
siaca : pectore pallide ardesiaco, abdomine versus albicante : 
abdomine imo pure albo: corporis lateribus olivaceis : rostro 
nigro : pedibus corneo-brunneis. 
2 ad. A mari diversa: supra omnino olivacea, capite summo 
concolori: capitis lateribus sordide ardesiacis: regione paro- 
tica nigricante : genis cum gutture toto et pectore medio albi- 
cantibus : caterum fere ut in mari colorata. 

Mystacornis crossley?. 
Adult male. Above olive-brown ; forehead and sides of the head 
slaty-grey ; feathers in front of the eye, encircling the latter and ex- 
tending beyond the ear-coverts, deep black ; a little line of feathers 
above and below the eye, as well as a line of feathers along the cheeks, 
white; quills blackish brown, margined exteriorly with olive-brown, 
especially the secondaries, which are almost entirely of the latter 
colour; tail olive-brown; entire throat dark slaty grey, almost 
black ; breast paler grey, becoming whiter towards the lower parts ; 
abdomen pure white; flanks and under wing-coverts olive-brown ; 
under tail-coverts white ; bill black ; feet pale horny brown. Total 
length 6 inches; of bill from front 0°8, from gape 1; wing 2°7; 
tail 1°7; tarsus 0°9. 
Adult female. Head and entire upper surface olive-brown, some- 
what inclining to green; sides of the head commencing from the 
