15. LAEUS. 171 



b'. Hood grey like the mantle ; imder- 



wing smoke-grey cirrhocephalus, p. 198. 



e'.. Hood dark brown. 



c". First quill largely mixed with white. 



e'". First quill black on the basal half ; 



chiefly or entirely white on the 



terminal half. 



c*. Second and third quills white on 



both webs to the tip ; first quill 



quite white terminally glaucodes, p. 203. 



c?'. Second and third quills with 

 subterminal black bars; a 



slight bar on the first quill . . 7naculipennis, p. 200. 

 /'". First quill white, tipped and 

 bordered on both webs with 



black ridibundus, p. 207. 



d". First quill black, with a white sub- 

 terminal mirror brunneicephalus, p. 215. 



b. Mantle dark brown to sooty ; outer quills 



black. 

 d'. Nuchal collar white. 

 e". Hood and fore-neck jet-black; bill 



slender kucop/ithabnus, p. 219. 



/". Hood and fore-neck dark brown; 



bill stouter hemprichi, p. 221. 



e'. Nuchal region deep lead-colour, like 



the mantle ; underparts smoke-grey . . fuliginosus, p. 222. 



B. Adult. Head without a hood ; tail with a 



subterminal black band. 

 Young. Head witli an irregular striated 

 hood ; tail as above. 



c. Tail mostly dark grey, band least defined ; 



underparts smoke-grey ; bill slender modest its, p. 223. 



d. Tail mostly black or black and white. 



/'. Tail black to the base ; underparts 

 vinaceous grey ; mantle dark smoke- 

 grey heermanni, p. 225. 



g'. Base of tail white ; underparts white. 



y. Mantle brownish black belcheri, p. 226. 



h". Mantle slate-grey crassirostris, p. 227. 



C. Adult. Head without a hood, tail white. 

 Young. Head without any indication of a 



hood ; tail with little or no subterminal 

 dark band ; upper tail-coverts unspotted. 

 Wing less than 13 inches. 



e. Bill black ; quills white on both sides of 



shafts. Young without terminal band 



on rectrices bulleri, p. 233. 



f. Bill red. ^ 

 h'. Inner web of first qiull almost entirely 



■white gelastes, p. 230. 



i'. Inner web of first quill mostly black. 

 i". Larger, wing 12 inches ; third quill 



with a white mirror in the fully adult. nov<e Jwllandice, p. 235. 

 k". Smaller, wing 11 inches. 



</'". The white on the basal half of 

 3rd quill extending far beyond 

 the shaft on the inner web scojndinus, p. 238. 



