Recent Ornithological Publications. 263 



ing the two species of Pyrgisoma, together with Plate Ixiv. 

 illustrate the paper on this genus (P. Z. S. 1868, p. 324). The 

 various Rails, too, have all been selected in special reference to 

 the authors' admirable monograph on the American Rallidce 

 (P. Z. S. 1868, pp. 442-470). The most remarkable species 

 among them is that to which the generic name Thyrorhina 

 is given. It seems to stand alone in the Rallidce, having the 

 nasal openings operculated, and a median septum completely 

 dividing the nostrils from one another. Then we have four 

 Asturina figured in illustration of another monograph (P. Z. S. 

 1869, p. 130). Several of these, as separated, appear to be 

 very closely allied to one another ; but the geographical distri- 

 bution of the forms favours the authors' view. The Turdida 

 figured, seven in number, though not affording attractive plates 

 So far as colour is concerned, will be of considerable service 

 in determining the South-American species, about which great 

 confusion seems to have prevailed, if we may judge by the string 

 of synonyms borne by some of the species. 



We must not omit mentioning the monographic lists appended 

 to several of the species figured, as they will prove to the student 

 perhaps the most useful portion of the work. We now have : — 

 a list of the species of Attagis accompanying the Plate of A. 

 chimhorazensis ; a list, with concise diagnoses, of the three small 

 Water-Rails allied to Rallus virginianus ; and a complete list of the 

 species comprised in the genus Pitylus, giving their synonymy, 

 diagnoses, and distribution, together with a plate of P. humeralis, 

 a species lately described by Mr. Lawrence [cf. Ibis, 1868, p. 

 114) . The synonyms of the larger group of North- and South- 

 American species of ^ccipi/er are also collected together, and the 

 species (seven in number) separated under three sectional head- 

 ings. The genus Ampelion, with its four species, is treated in like 

 manner. The two American species of Botaurus do not require 

 a tabular list; and the letterpress answers every purpose in dis- 

 criminating theinterestingSouth-Americanbird from its Northern 

 ally, while a synopsis of the genus Tigrisonia is added to the 

 detailed account of the species figured. 



For the singular Grebe represented on Plate xcv. the new 

 generic name of Centfopelma is proposed. Its wings are so 



