Mr. H. O. Forbes on Apteryx Haasti. 



159 



Subord. vi. Tellinacea. 



Fam. 39. Serobiculariidae. 



40. Tellinidae. 



41. Donacidae. 



42. Cardiliidae. 



48. Mesodesmatidse. 

 44. Mactridse (excepting 

 Lutfana). 



Subord. vii. Submytilacea. 



Fam. 45. Galeommidfe. 



46. Eryciuidfe 



Montacuia). 



47. Kellyellidse. 



48. Crassatellidae. 



49. Tancrediidse. 



50. Uuicai'diidfe. 



51. Uugulinidfe. 



52. Lucinid* 



M onf acuta). 



53. Astartidye. 



54. Carditidse. 



55. Cardiniidse. 



56. yEtheriidae. 



57. Unionidse. 



58. Dreissensiidce, 



59. Modiolopsidse. 



(excepting 



(including 



Order III. PSEUDOLA- 

 MELLIBRANCHIATA. 



Fam. 60. Ostreidag. 



61. Aviculidifi. 



62. Prasinidse. 



63. Pectinidfe. 



64. Limidae. 



65. Spondylidae. 



66. Dimyidee. 



Order IV. FILIBRANCHIATA. 



Fam. 67. Mytilidse (excepting 



Dreissensia and Dreis- 

 sensio7m/a). 



68. Trio-ouiida^. 



60. Arcidpe. 



70. Anoniiidae. 



Order V. PROTOBEANCIIIATA. 



Fam. 71. Solenomyidae. 

 72. Nuculidie. 



XXI. — Notes on Apteryx liaasti. 



To the Editors of the 'Annals and Magazine of 

 Natural History.^ 



Gentlemen, — In the last number of the ' Annals/ page 43, 

 I observe an article on Apteryx Haasti, Potts, by the Hon. 

 Walter Kothschild. " Mr. Forbes," it affirms, " has ex- 

 pressed it as his opinion that Apteryx Haastii is a natural 

 hybrid between A. aiistralis and A. Oioenii. 1 have paid 

 much attention to this question as well as to the study of this 

 genus generally," &c. 



1 am not sure whether or not I am the " Mr. Forbes " 

 referred to ; but as I am led to believe that I am, I hope you 

 will grant me the privilege of making a few observations on 

 Mr. Rothschild's note. I am surprised, in the first place, to 

 liave opinions that I privately entertain publicly criticized; for, 

 so far as I can charge my memory, I am not aware of having 



