912 



MRS. R. HAIG THOMAS ON THE 



as a new African species under the name G. hayi (Proc. Zool. 

 See. 1911, p. 961, text-fig. 193 A). My apologies are due both 

 to the Society and to naturalists in general for this most unfor- 

 tunate mistake, 



The text-figure of the so-called G. hayi will serve as an 

 illustration of the male of G. fuscifrons. The gazelle collected 

 by Mr. Hay in Algeria is, I believe, G. isahella." 



The Rev. T. R. R. Stebbing, M.A., F.R.S., F.Z.S., communi- 

 cated a memoir on the Crustacea Isopoda collected by the 

 'Porcupine' Expedition in 1869-1870, in which he described 

 one new family, two new genera, and four new species. 



This memoir will be published in the ' Transactions 'in due 

 course. 



Mrs. Rose Haig Thomas, F.Z.S., exhibited the eggs of Phasi- 

 aiius formosanus, P. versicolor, and their F. 1 and F. 2 oflispring, 

 and made the following remarks : — 



" Last February I exhibited to the Society a series of Pheasant 

 skins of an experimental cross between a Formosan female and a 

 versicolor male, illustrating the transmission by the male parent 

 to his female offspring of most of the female characters of his 



Text-fiff. 126. 



Eggs ot P. versicolor, F. 1, Fo.XVe., F. 2, Fo.XVe.XVe., and F.formosanus. 



race : further evidence of this is now exhibited, namely, the eggs 

 of the two parent species and those of their F. 1 and F. 2 offspring. 

 It is plain that a considerable difierence in dimensions exists 

 between the eggs of P. formosanus, the larger, and P. versicolor 

 the smaller of the two : the expectation was that the eggs of the 

 offspring would resemble in size the egg^ of the female parent 

 species rather than that of the male parent species ; but, on com- 

 paring them, it is clear that the eggs of F, 1 and F, 2 are simply 



