18/G.] NEOTROPICAL ANATID E. 397 



Denkschr. Ak. Wien, v. p. 131 (1853), et J. fur Orn. 1855, p. 57 

 (Chili). 



Rhynehaspis mexicana, Licht. Nomencl. p. 102 (descr. nulla) (?). 

 Supra et subtus rufescens, nigro guttata, capite et cervice undique 

 dilutioribus et maculis minutis aspersis ; uropygio nigro; dor so 

 postico nigricante rufo undulato ; a/is fusco-nigris, tectricibus 

 minoribus cceruleis, intermediis albis ; secundariis extus ceneis 

 viridi nitentibus, scapularibus et secundariis dorsi proximis 

 tinea scapum occupante alba ornatis ; crisso nigro ; cauda 

 fusca, rectricibus lateralibus extus a/bo marginatis ; rostro (in 

 pelle) obscuro ; pedibus Jtavis : long, tota 20*5, alee 8'0, 

 caudce 4 '5, tarsi 1*4, rostri a rictu 2*7. Fern, supra nigri- 



canti-fusca, plumarum marginibus cervino-rufis ; tectricibus 

 alarum minoribus ccerulescenfe lavatis ; subtus cervino-rufes- 

 cens nigro variegata et obsolete punctata ; gula fere imma- 

 culata, crassitie minore. 

 Hab. Buenos Ayres (Azara §• Hudson); Parana (Burnt.); Chili 

 (Phil. §' Landb.); Falklands (Leconte). 



According to Azara this species of Shoveller is found both in 

 Paraguay and in Buenos Ayres. Bunneister also met with it on the 

 Parana and near Buenos Ayres. In Chili Philippi and Landbeck 

 state that it is common in the central provinces, but rarer towards 

 the south. Mr. Darwin obtaind his specimen of this Shoveller from 

 the Rio de La Plata ; whence also the one described in Jardine and 

 Selby's ' Illustrations of Ornithology,' under the name of Rhyn- 

 ehaspis maculatus, was procured by Mr. Gould. 



A female of this species, in Salvin and Godinan's collection, was 

 obtained in the Falklands by Leconte when he went to obtain living 

 Sea-lions in 1867. 



Genus 10. Aix. Type. 



Aix, Boie, Isis, 1828, p. 329 A. sponsa. 



Dendro?iessa,S\v Faun. Bor.-Am. Birds, p. 497 (1831). A. sponsa. 



Lampronessa, Wagler, Isis, 1832, p. 282 A. sponsa. 



Aix is an Arctic form, the American species of which has dif- 

 fused itself as far south as Cuba and Jamaica. 



Aix sponsa. 



Anas spo7isa, Linn. S. N. i. p. 207 (1706). 



Aix sponsa, Boie, Isis, 1828, p. 329 ; Baird, B. of N. Am. p. 785 ; 

 Gundl. J. fur Orn. 1857, p. 226, Repert. F.-N. i. p. 389, et J. fur 

 Orn. 1875, p. 381 (Cuba); March, Pr. Ac. Phil. 1864, p. 71 (Jamaica); 

 Scl. & Salv. Nom. Av. Neotr. p. 130; Lawr. Mem. Bost. Soc. ii. p. 315 

 (Mexico). 



Hab. Mexico (Abert) ; Cuba (Gundl.); Jamaica (March). 



A resident species in Cuba, frequenting shady lagoons. It nests 

 in the island ; but at what time of year Dr. Gundlach had not ascer- 

 tained. In Jamaica it is very rare. Mr. Lawrence gives Col. Abert 

 as the authority for its occurrence near Mazatlan, Mexico. 



