This bird is common in the neighbourhood of Maldonado, on the banks of the Plata. It generally frequents the borders of lakes, ditches, and other moist places; but is related in its general manners with the last species. It often alights on aquatic plants, growing in the water. When seated on a twig it occasionally expands its tail like a fan. SUB-FAM.—TITYRANÆ. (PSARIANÆ, _Sw._) PACHYRAMPHUS, _G. R. Gray._ Pachyrhynchus, _Spix._ 1. PACHYRAMPHUS ALBESCENS. Pachyrhynchus albescens, _Gould, MS._ PLATE XIV. _P. olivaceo-griseus; alis nigrescenti brunneis, albescenti marginatis; gutture corporeque subtus griseo-albis; alarum tectricibus inferioribus pallidè sulphureis._ Long. tot. 5³⁄₁₂ unc.; _alæ_, 2⁷⁄₁₂; _caudæ_, 2⁶⁄₁₂; _tarsi_, ⁸⁄₁₂; _rost._ ⁷⁄₁₂. Head and all the upper surface olive grey; wings blackish brown, the coverts and secondaries broadly margined with dull white; primaries narrowly margined with greyish white; tail blackish brown, the external web of the outer feather white; under surface of the shoulder pale sulphur yellow; throat and under surface greyish white; bill and feet black. Habitat, Buenos Ayres. The generic name of Pachyrhynchus _Spix_, is changed by Mr. G. R. Gray, to _Pachyramphus_, as the former word is used in entomology. [Illustration: _Birds. Pl. 14._ Pachyramphus albescens. ] [Illustration: _Birds. Pl. 15._ _Pachyramphus minimus._ ] 2. PACHYRAMPHUS MINIMUS. Pachyrhynchus minimus, _Gould_. _MS_. PLATE XV. _P. rufo brunneus; capite guttureque brunneo-nigris; plumarum basibus albis; alis caudâque brunneis, plumis flavescenti-albo marginatis; colli lateribus, fasciâ pectorali hypochondriisque fulvis; jugulo ventreque pallidè flavescentibus._ _Long. tot._ 3⁷⁄₁₂; _alæ_, 1¹⁰⁄₁₂; _cauda_, 1⁷⁄₁₂; _tarsi_, ⁶⁄₁₂; _rost._ ⁵⁄₁₂. Crown of the head, sides of the face and throat blackish brown, each feather white at the base; back of the neck black, and upper tail coverts rufous brown; wings and tail dark brown, each feather margined with sandy white; sides of the neck, under surface of the shoulder, band across the chest and flanks reddish fawn colour; lower part of the throat, and centre of the abdomen very pale buff; bill and feet blackish brown. Habitat, Monte Video, (_November_). SUB-FAM.—FLUVICOLINÆ, SWAIN. ALECTURUS GUIRAYETUPA. _Vieill_. Dict. Muscicapa psalura, _Temm._, Pl. Col. t. 286 and 296. —— risoria, _Vieill._, Gal. des Ois. Pl. 131. Yetapa psalura, _Less._, Tr. d’Orn. i. p. 387. Le Guirayetupa, _Azara_, No. 226.