Vol i906' 111 ] Recent Literature. 471 



of birds collected by Dr. Percy Rendall in the districts of Savannah Grande 

 and Tacarigua" (p. 1). In addition to the collection of Trinidad birds here 

 mentioned the Tring Museum also contains a large number of specimens 

 from Tobago and from the adjoining mainland, Mr. Hellmayr, therefore, 

 being exceptionally well equipped to prepare the discussion of the relation- 

 ships of the avifaunse of these islands to one another as well as to that of 

 the continent. Following this discussion, which occupies pages 2 and 3 

 of his memoir, he presents fully annotated lists of (1) "the species collected 

 by Messrs. Andre, Percy Rendall and Chapman," (2) a list of the species 

 found on the islands between Trinidad proper and the Paria coast," and 

 (3) a list of those species ' 'the occurrence of which is doubtful or has been 

 wrongly given." 



The first part of Mr. Hellmayr's paper is rendered especially valuable 

 by his synoptic treatment of closely related groups having representa- 

 tives in Trinidad. Here are described under new names Pachysylvia 

 aurantiifrons saturata, Mionectes oleagineus pallidiventris, Pitangus sulphur- 

 atus trinitatis, Dysithamnus affinis andrei, Celeus elegans leotaudi, Piaya 

 cayana insulana, and Hydranassa tricolor rufimentum. Cyanerpes cozrulea 

 trinitatis (Bp.) is recognized as a valid form, and Sclateria is proposed 

 to replace Heterocnemis, preoccupied. Chlorospingus leotaudi Chapm. is 

 shown to be the female of Tachyphonus luctuosus and Lanio lawrencei 

 Scl. is considered to be an immature male of the same species; an 

 "unfortunate" instance, as Mr. Hellmayr remarks, of one bird having 

 been referred to three different genera, and at the same time an interest- 

 ing comir.^t on the nature of 'generic' characters in the class Aves. 



Mr. H llmayr's ' Hypothetical List ' would have been more correct if 

 he had examined Chapman's 'Further Notes on Trinidad Birds', 1 a paper 

 which he seems not to have seen. In it he will find that Piranga hcemalea 

 was included in Chapman's list on the basis of a captured specimen, the 

 identity of which had since been confirmed by Mr. Ridgway, that of 

 Choztura cinereicauda, omitted by Hellmayr, eight examples were taken, 

 and that of Chcetura spinicauda, the occurrence of which in Trinidad 

 Hellmayr "greatly doubts," five specimens were secured. We may here 

 also call attention to the lapsus in this ' Hypothetical List ' of Carduelis (p. 

 58) for Cardinalis. — F. M. C. 



Cherrie on Birds Collected in Trinidad. 2 — Although Mr. Cherrie col- 

 lected in Trinidad only eight days (March 14-25, 1905) he secured speci- 

 mens of three species not previously recorded from the island, one of which 

 is described as new under the name of Attila wightii, while the others are 



1 Bull. Am. Mus. Nat. Hist., VII, 1895, pp. 321-326. 



2 Species of Birds Collected at St. Matthews Cocoa Estate, Heights of Aripo, 

 Trinidad.' By Geo. K. Cherrie. Science Bulletin [no number] of the Museum of 

 the Brooklyn Institute of Arts and Sciences, pp. 1-6, issued June, 1906. 



