493 



24. Mekgtjs c^ruleus. 



WTiite-faced Duck, Lath. Stjn. iii. 2, p. 504, n. 50 a (1785). 



Blue Merganser, Ftnn. Arct. Zool. ii. Suppl. p. 74 (Iludsoa's Bav) 



(1787). 

 Mergus caeruleus, Lath. Ind. Orn. ii. p. 833, n. 10 (1700); Dum. 



Diet. So. Nnt. XX. p. 297 (1821); G. R. Gr. Gen. B. iii. p. 629, 



n. 7 (P) (1844). 

 Merganser cteruleus, Staph. Gen. Zool. xii. 2, p. 171 (1824) ; Bp. 



Compt. Rend, xliii. p. 025 (?) (1856). 



25. Meegus cbistatus. 



Mergus cristatus, Pall, {nee Briss.) Zoogr. Rosso-As. ii. p. 291 (1811) 

 (Ins. Oceani Orientalis) ; G. R. Gr. Gen. B. iii. p. 629, n. 5 (?) 

 (1844) ; Brandt, J. f. O. 1891, p. 269. 



Mergus serrator a. pallasii, Bp. Compt. Rend, xliii. p. 652 (1856). 



A species incompletely described, possibly identical with Lopho- 

 dytes cucullatus (cf. Brandt, I. c). 



26. Mergus imperialis. 



Anitra imperiale, Cetti, Ucc. di Sard. p. 314 (1776) (Sardinia). 



Mergus imperialis, Gyn. S. N. i. 2, p. 547, n. 4 (1788) (e.r Cetti) ; 

 Lath. Ind. Orn. ii. p. 829, d. 3 (1790) ; Vieill. K. 1). xiv. p. 222 

 (1817) ( = albellus ?) ; Ranz. Elem. di Zool. iii. pt. ix. p. 151 (note) 

 (1826) ; G. R. Gr. Gen. B. iii. p. 629, n. 6 (?) (1844). 



Merganser lur^BxiaWs, Bonn. Enc. Meth. i. p. 106 (1790) ; Steph. Gen. 

 Zool. xii. 2, p. 170 (1824); Bp. Compt. Roid. xliii. p. 652 (?) 

 (1856). 



The description of the bill given by Cetti, in my opinion, is that 

 of a Goose, and most probably of Anser ferus. 



27. Mergus nigeicollis. 



Mergus nigricollis, Bechst. Orn. Taschenb. ii. p. 403 (1803). 



28. Q^DEiiiA sp. 



Oidemia, sp. ?, Boeck, MT. orn. Ver. Wien, 1884, p. 167 (Extract, 

 p. 25) (Cochabamba, Bolivia). 



" Einformig schwarz. Schnabel gclb, iris braun. Sehr selten " 

 {BoecJc). 



29. QUEKQUEDULA Sp. 



Querquedula, sp., Boeck, MT. orn. Ver. Wien, 1884, p. 167 (Ex- 

 tract, p. 25) (Cochabamba, Bolivia). 



"Fast jihnliche Zeichnung wie Dajila spinicmula, aber ausge- 

 zeichnet durch zwei lebhaft rothe Flecken auf den Wangen, eincn 

 orange-gclbcn Schnabel, mit schwarzem First. Fiisse roth " (Boeck-). 



30. CaX.\RD INNOMlNi:. 



Canai-d innomlnt5, femelle. Less. Descr. Maynin. et Ois. p. 247 (1847). 

 Possibly the same as I^^eition Jlavirostre. 



