212 PROCEEDINGS OF THE ACADEMY OF [1899. 



replaced by Cryptillas, from x/)u;:to?, occiiltus, and (A/ia?, turdus; 

 the type and sole species being Bradypterus victorini Sundevall. 

 This will now stand as 



Cryptillas victorini (Sundevall). 



AMYTIS Lesson. 

 Amytis Lesson^ is untenable by reason of Aniytis Savigny," pro- 

 posed for a genus of Vermes. In its stead may be used Diaphor- 

 illas, from vid<popu<;, difFerens, and iV.Aa?, turdus; the typical 

 species being Malurus textilis Quoy and Gaimard. 



The list of species is as follows : 

 Diaphorillas textilis (Quoy and Gaimard). 

 Diaphorillas striata (Gould). 

 Diaphorillas macroura (Gould). 

 Diaphorillas goyderi (Gould). 



HEMIXUS Hodgson. 



In the sixth volume of the British Museum Catalogue of Birds, 

 pp. 120, 121, Dr. Sharpe treats at length the generic name Ixos 

 Temminck,^ arriving finally at the conclusion that it is a synonym 

 of Pycnonotus, and that it must date from 1840. That this disposi- 

 tion of the name is not the proper one may at once be seen by refer- 

 ence to the original description in the text accompanying the 

 Planches Coloriees. Dr. Sharpe states that Temminck gives no 

 characters for the genus, but the following quotation will show that 

 this is not correct: " Je donne a ce groupe d'oiseaux un nom sys- 

 tematique, pour que les esp^ces qui en font partie puissent etre 

 separees generiquement des ilferfes- (Turdus), desquels on pent les 

 separer assez convenablement, par la brievete du bee en proportion 

 de la tete, par des ailes plus courtes, et par uue plus grande abon- 

 dance de duvet sur le croupion, caractere tres marque dans quehjues 

 unes. ' ' The only species given is Ixos virescens Temminck, which 

 must therefore be considered the type; and as this bird is not a 

 Pycnonotus, but a Hemixus, the generic name Ixos, 1825, must sup- 

 plant Hemixus Hodgson.^ 



1 Traite d' Orn., 1831, p. 453. 



^Syst. Annel, 1826, p. 46. 



^Pl. Col., ii, livr. 64, Dec, 1825, pi. 382, fig. 1. 



* Gray's Zool. MiscelL, 1844, p. 83. 



