viii Introduction 



Year Brit. Assoc. Royal Soc. Zool. Soc. Brit. Mus. 



Xj Xj A) Xj 



1911 75 — — — 



1912 — — — 100 

 19x3 — — — 100 



1914 — — — 100 



1915 — — — 100 



1916 — — — 100 



1917 — — — 100 



19 18 — — — ■ 100 



1919 — — — 100 



1920 — — — 140 



192 1 — — — 140 



The following remarks will be of service to those who use this 

 volume : — 



Noviina iitida are distinguished by the letters \n. «.]. 



Noniina nnda accompanied by figures, by the letters [;/. etf.\ 



In those cases where an author has described and figured a species 

 some time after printing his nonien miduvi, a reference is also given 

 to the nonien nuduni, when possible. 



Species indett. (without trivial names), if figured, are included in 

 the Index. 



Misprints are quoted only if considered liable to cause confusion. 



The date of publication of a species is taken to be that date on 

 which the print in which the name appears is offered for public sale 

 or public distribution. 



No author's copy, or excerpt from any publication distributed 

 privately before such pubHcation was offered for public sale or pubHc 

 distribution has been accepted. 



Entries taken from privately printed books are distinguished by 

 the words auct. typ. 



In all cases where the date is doubtful and cannot be definitely 

 ascertained, the date figures are enclosed in brackets [ ], or have a " ? " 

 or some other distinguishing mark placed against them. The date 

 always refers to that of the actual page, so far as my researches have 

 enabled me to decide it. 



Many of my notes on dates were incorporated by B. B. Woodward 

 in his Catal. Libr. Brit. Mus. (Nat. Hist) while his volumes were going 

 through the press, and this work should always be consulted on biblio- 

 graphical matters. 



"In thecaseof plates which appeared beforethetext,thedateofeach 

 is given if ascertainable ; but in no case is the date of a plate accepted 

 in preference to the date of text, for the reasons which follow : — 



"The figure depicted on a plate may, or may not, be the drawing 

 intended by the author ; it is the work of the artist, who is responsible 



