COLYMBCS CRISTATUS. 215 



1899. Radde, Mus. Caucas., I, p. 236 (<$ II. 71, juv. XI. 63 Tiflis; <3<5 IV. 66, 



13. XI. 79, 25. XL 79, $ 16. XI. 79, 11. XII Lenkoran; ova IV- V. 80 



Lenkoran). 

 1899. Paxhhi,ebt> (RadischtschewJ, Tpya. CapaTOB. 06m. Ectb. h JIioô. 



Ectb3h., II, iii, p. 83 (Circuli Chwalynsk et Petrowsk gub. Saratow). 

 1899. SAwnzki, Korrespondzbl. Naturf.-Ver. Riga, XLII, p. 211 (Umgegend 



Rigas, nCC). 



1899. Steneoos, Act. Soc. Faun. & Plor. Fenn., XVII, 1898—1899, Je 1, p. 31 

 (Nurmijârvi, 40 km nordwarts von Helsingfors, nicht alljahlich 2 — 3 

 Paar nistend). 



1900. Meh3ehpt> (Menzbœr), Oxoth. h npoM. dthii. Pocc. n KaBK., I, p. 3, 

 Ta6a. 1. 



1900. iKHTKOBt (Shttkow), HcoBasi h Pyai. Oxot., 1900, pp. 30, 55 (Reg. 

 Transcaspica, fortil. Tschatly ad fl. Atrek, h). 



1900. BAjn.x-£ (Walch), Tp. 06m. Ectb. XaptEOB. ymm., XXXIV, p. 9 (Gub. 

 Ekaterinoslaw; in circul. Pawlodar nCC, 4* in ambient. urb. Pawlodar 

 fin. III seu init. IV, ^ fin. IX— fin. X; in lacu Solenoje circul. Xovo- 

 Moskowsk et in fl. Dnjepr prope Staro-Kaidatzkij Porog V frequens). 



1901; EyTyraim-B (ButublinJ, Chhoht. Ta6ji. oxot. rrr., p. 87. 



1901. Xomakob-b (Chomjakow), MaT. no3H. $ayH. h qwiop. Pocc. Hirn., V, 

 p. 108 (Gub. Rjazan, circul. Spask, CC). 



1901. KAPAM3IIHT. (KaeamzinJ, MaT. no3H. (payH. h qwiop. Pocc. Hun., V, 

 pp. 31, 392 (Circuli Buguruslan, Bugulma, Buzuluk gub. Samara et 

 circul. Belebej gub. Ufa, tnCCC; f init.IV,summus 24. IV. 94, -J, IX.— 

 Exempl. £ 13. VIII. 96 Pawluschkino circul. Buguruslan,.— N» 209—210. 



1901. Schwedek, Arbeit. Naturf.-Ver. Riga, Hft. X, pp. 59, 92. 



1902. Johansen, Ornith. Jabrb., XIII, p. 9 (lacus Ubinskoje, c. 55!/2° Et. 

 sept., Baraba, gub. Tomsk). 



19<>2. Johansen, Ornith. Jahrb., XIII, p. 188 (Barnaul gub. Tomsk, n, 4> 



circa 1. V). 

 1902. Loddos, Ornitb. Jabrb., XIII, pp. 205, 212, 213, 227, 228 (Merw-Oase: 



Bairam-ali, Jussup-cban See 13. III. 01, CCC; Murgab bei Jolotan 21. III. 



01; Oase Tedschen 3. IV. 01, CC). 

 1902. Palmgeen, Medd. Soc. Faun. & Flor. Fenn., XXVIII, p. 71 (Karelia 



ladogensis, Salmis socken: iagttogs mycket sallan pâ Lunkulansaari 



och Mantinsaari; bàckade sparsamt vid fastlandet). 



1902. Tetbom, Fisk Tidskr., XI, pp. 35 — 43 (Biographia et noxa). 



1903. Cawhhhi (Satdnln), EcTecTB03H. h Teorp., 1903, viii, p. 41 (Trans- 

 caucasia, lac. Goktscba |. 



1903. Bopohkobt. (Wososkow), Tpya. CTyj. KpyxK. h3c.t. Pycc. npap. Moce. 

 yHHB., I, p. 174 (Gub. Mosqua, circul. Ruzsk: n in lac. Glubokoje, 1 — 2 

 conjugia) 



1904. Aptoeojiebceiu (Artobolewskt), 3an. KieBCK. 06m;. EcTecTB., XIX, 

 p. 167 (Pars merid.-orient. gub. Penza, n). 



19114. Johaksen, Ornith. Jahrb., XV, pp. 169, 170, 179, 195 (S.-W. Th. des 

 Gouv. Tomsk, Kulundinsche Steppe: 12—15. VI. 02 an den Seen beim 

 Dorfe Plotnikowo, 53y 2 °; 23. VI— 1. VIL 02 an den Seen beim Dorfe 



