174 PALÉOZOOLOGIE ET PALÉOPHYTOLOGIE 



tially tbe same as those already issued as suggestions by the Committee. 

 Others, which seem to us worthy of gênerai adoption, are the following : — 



Rule 1. — No description of a new genus, or subgenus, wil be publisbed 

 unless there is cited as génotype a species which is established in accor- 

 dance with the current practice of zoological nomenclature. 



Rule 2. — In ail cases a new genus, or subgenus, must be characterised, 

 and, if i is based on an undescribed species, the two must be charactericed 

 separately ( 1 ). 



Rule 3. — No description of a species, subspecies, variety, or form will 

 be published unless it is accompanied by a statement which includes the 

 following information, where known : (1) the type-locality ; (2) of what the 

 type material consits — with statement of sex, full data on localities, dates, 

 collectors, etc. ; and (3) présent location of type material. 



Rule 5. — The ordinal (or class) position of the group treated in any paper 

 must be clearly given in the title or in parenthèses following the title. 



Suggestion 3. - - !n discussion of type-material modem terms indicating 

 its presise nature will be found useful. Examples of thèse terms are : type 

 (or holotype), allotype, paratype, cotype, (or syntype), lectotype, neotype T 

 génotype, etc. 



Suggestion 4. — In ail cases in the sériai treatment of gênera or species, 

 and where first usecl in gênerai articles, the authority for the species, or genus, 

 should be given ; and the name of the authority sbould not be abbreviated. 



Suggestion 6. — When a species discussed lias been determined by 

 some one other than the author, it is important that référence be made to 

 the worker making the identification. 



We would also add, as a Rule, That when a new genus, subgenus, species, 

 or variety is introduced, it should be accompanied by a distinct statement 

 that is new, n. g. by the addition of « /;. sp. ( 2 ), » etc. Also that a species, 

 etc., should not be described as new when it bas been introduced in a pre- 

 vious publication. 



F. A. Rather. 



Rectifications de nomenclature 



par MM. .1. Lambert et M. Cossmann. 



Nom ancien : Genre Stenonia Desor, 1858 ; Nom nouveau : G. Stenoeorys 

 Lamrert , Cause : Genre différent de Stenonia Gray, 1843. ■ — Nom ancien : 

 Genre Surcella Pomel ; Nom nouveau : G. Vasconaster Lambert ; Cause : 

 Genre différent de Sarsella Hœckel. 



J. Lambert. 



( 1 ) Une ou plusieurs figures sont indispensables pour légitimer les noms nouveaux de 

 genres ou d'espèces fossiles (Noie de la Direction) . 



( 2 ) On peut, à la rigueur, se dispenser d'ajouter n. g. ou n. sp. quand les noms sont 

 imprimés en caractères gras (Note de la Direction). 



