PREFACE. IX 



Day, of Cheltenham; Mr. A. de Borinans (Dubrony), of Brussels; 

 Mr. Henry Edwards, of New York; Dr. Aug. Forel, of Munich; Prof. 

 Albert Gaudry, of Paris; Dr. H. B. Geinitz, of Dresden; Mr. O. Har- 

 ger, of New Haven ; Mr. J. S. Kingsley, of Worcester ; Dr. L. Koch, of 

 Nuremberg; Mr. P. de Loriol, of Frontenex; Dr. A. W. Malm, of 

 Gothenburg; Mr. Edward J. Miers, of the British Museum ; Dr. A. B. 

 Meyer, of Dresden ; Mr. P. O. Olsson, of Ostersund ; Mr. W. H. Pattoii, 

 of Washington; Prof. Felipe Poey, of Havana; Dr. C. Eitsema, of 

 Leyden; Dr. O. Staudinger, of Dresden, and Eev. T. B. E. Stebbing, of 

 Tunbridge Wells. 



Valuable notes were also communicated by Mr. J. A. Allen, of the 

 Museum of Comparative. Zoology, upon the genera.of birds, and on the 

 same by Dr. Elliott Coues, of Washington ; Dr. Ph. Bertkau, of Bonn, 

 kindly sent a list of recent genera of arachnida ; Eev. A. E. Eaton, of 

 Bromley, notes of many genera of ephemeridae; Prof. C. H. Fernald, 

 of Orono, memoranda of Lord Walsingham's genera ; and the late Dr. 

 Snellen van Volleuhoven, of the Hague, notes of various genera. 



Besides the complete lists of their genera sent by various naturalists 

 many others responded to the circular asking for names introduced since 

 1877, and full lists of these, some of them very extensive and all very 

 welcome, are gratefully acknowledged from Dr. Joachim Barrande, of 

 Prague ; Dr. Evald Bergroth, of Helsingfors ; Sen. J. N. Barboza du 

 Bocage, of Lisbon ; Dr. Ignacio Bolivar, of Madrid ; Mr. George S. 

 Brady, of Sunderland ; Eev. O. P. Cambridge, of Blandford ; the late 

 Dr. Candeze, of Liege ; Mr. H. J. Carter, of Budleigh ; Mr. V. T. Cham- 

 bers, of Coviugton; Dr. Herman Friele, of Bergen; Mr. F. D. Godman, 

 of London (including those established in conjunction with Mr. Salvin) ; 

 Mr. G. Brown Goode, of Washington ; Mr. H. S. Gorham, of Shipley ; 

 Mr. G. Bird Grinnell, of New Haven; Mr. A. E. Grote, of New Brigh- 

 ton ; Dr. Eichard Hertwig, of Jena ; Dr. A. A. W. Hubrecht, of Leyden; 

 Count E. Keyserling, of Glogau ; Dr. E. Leuckart, of Leipsic ; Mr. G. M. 

 E. Levinssen, of Copenhagen; Mr. Jules Lich ten stein, of Montpellier; Mr. 

 Frederick Moore, of London; Dr. H. Alleyne Nicholson, of St. Andrews ; 

 Baron E. von Osten Sacken, of Heidelberg ; Dr. G. O. Sars, of Christi- 

 ania; Baron E. de Selys Longchamps, of Liege; Dr. David Sharp, of 

 Thornhill; Dr. Signoret, of Paris; Mr. E. Simon, of Paris; Mr. W. J. 

 Sollas, of Bristol; Dr. E. L. Trouessart, of Villeveque; Dr. F. Vej- 

 dovsk^, of Prague, and Lord Walsingham, of London. Several others 

 sent their recent publications. 



These contributions have added vastly to the value of the supple- 

 mental list,* and having also delayed its appearance I have attempted 



* It may be remarked here that believing such contributions to be of some intrinsic 

 value, at least as a corrective of errors in the printed list, the originals have, wher- 

 ever possible, been preserved, collected into a volume, and deposited in the Mus<ium 

 of Comparative Zoology at Cambridge, where they can be examined together with the 

 annotated Nomenclator of Agassiz. 



