and on the Anas glocitans of Pallas. 435 



maculis nigris, tectricibus duabus mediis lateralibus longi- 

 oribus. 

 Anas glocitans. Pallas, Acta Stock. 1779. xl. t. 35. J". 1. 



Gfnel. Si/st. i. p. 526. 



Lath. Ltd. Orn. p. 862. 



Bimaculated Duck. Pennant, Brit. Zool. vol. ii. p. 602. t. 100. 



f.2. ed. 1776. 

 Mas. Rostrum jjlumbeum, dertio nigro. Pileiis nigei" ferru- 

 gineo-varius. Geiue collique latera virides. Giittur vi- 

 ridi-nigruni. Pectus abdomenque medium ferruginea, ma- 

 culis nigris, superioribus rotundis, inferioribus ovalibus. 

 Dorsum abdominisqwe latera fusca lineis nigris gracilibus 

 undata. Scapulares nigro-undatae, ad apicem nigrae. 

 Ptila, pteromataqwe superiora fusca, his fascia lata ferru- 

 ginea apicali marginatis ; inferiora alba. Remiges fuscae ; 

 speculo violaceo-viridi, fascia media nigra, apicali alba. 

 Uropijgiiim, caudieque tcctrices viridi-nigrae. Rectrices 

 fuscae, albido-marginatae, duabus mediis nigris, laterales 

 longitudine excedentibus. Pedes lutei, membrano in 

 medio nigro. 

 Longitudo corporis, rostro incluso, 15| ; rostri ad frontem 1 j^^, 

 ad rictum 2^-^; alae a carpo ad remigem secundam 8j; 

 tarsi \\. 

 F(EM. Rostrum plumbeum dertro fusco. Caput gutturqne 

 albide ferruginea, isto nigro-lineato, hoc parce nigro- 

 sparso. Pectus, dorsum, uropygium, abdominisque latera 

 fusca ferrugineo-marginata. Abdomen subtus album. 

 Rectrices mediae fuscae, lateralibus baud longiores. Alee, 

 pedesque ut in mare. 

 Longitudo corporis, rostro incluso, \5\; rostri ad frontem 

 1 /(J, ad rictum 2 ; alec a carpo ad remigem secundam 8 j ; 

 tarsi I2V 

 In Mus. nost. 



The male of this species was first described bj' Mr. Pennant 

 in his British Zoology, under the name o( Bimaculated Duck, 

 and introduced as an inhabitant of the British Islands in the 

 following words: — "Taken in a decoy in 1771, and commu- 

 nicated to ine by Poore, Es(j. * " The same bird was 



afterwards described and figured by Dr. Pallas in the Acta 

 Htockholmiensia for 1779 as a native of Siberia, fre(|uenting 

 lake Baikal and the river Lena ; and was named by him 

 Anus glocitans. On the authority of Mr. Pennant f the species 



has 

 • Linn. Trans, vol. ii. p. 60.'J. 



f 1 take Mr. Pcimuiit's authority (see Arctic Zoology, p. 575,) tor ileter- 

 mining that his Btniiicu/uted Dwic and the Anan ftluvitfim of Dr. F^allas are 

 the $an)e species. From the figure given in tlie Artn Slocl;liolmu nsia, I could 



.3 I 2 scarcely 



