464 Notes and News. [£ u t k 



quent to 1757/ Article 30 of the International Code of Zoological Nomen- 

 clature, as adopted at the Berne Congress in 1904, was cancelled and a new 

 Article 30 adopted in its place. Article 30 provides for the determination 

 of types of originally typeless genera. The new Article 30 includes prac- 

 tically all of the provisions of the old Article 30, amplified and made more 

 explicit, especially in respect to 'types by subsequent designation/ or types 

 by designation of a first reviser, and also by incorporating most of the 

 rules and recommendations published by Dr. Charles Wardell Stiles, U. 

 S. A., in September, 1905. 1 The new Article 30 (for a copy of which we 

 are indebted to the kindness of the secretary of the International Com- 

 mission on Nomenclature, Dr. Stiles), is herewith given in full: 



" Art. 30. — The designation of type species of genera should be governed 



by the following rules (a-g), applied in the following order of precedence: 



"I. Cases in which the generic type is accepted solely upon the basis of 



the original publication. 



" (a) When in the original publication of a genus, one of the species 



is definitely designated as type, this species shall be accepted as type 



regardless of any other considerations. (Type by original designation.) 



" (b) If, in the original publication of a genus, iypicus or typus is used 



as a new specific name for one of the species, such use shall be construed 



as 'type by original designation.' 



"(c) A genus proposed with a single original species takes that species 

 as its type. (Monotypical genera.) 



" (d) If a genus, without originally designated (see a) or indicated 

 (see b) type, contains among its original species one possessing the 

 generic name as its specific or subspecific name, either as valid name 

 or synonym, that species or subspecies becomes ipso facto type of the 

 genus. (Type by absolute tautonomy.) 

 "II. Cases in which the generic type is not accepted solely upon the 

 basis of the original publication. 

 " (e) The following species are excluded from consideration in select- 

 ing the types of genera: 



" (a) Species which are not included under the generic name at 

 the time of its original publication. 



" (/S) Species which were species inquirendoz from the standpoint of 

 the author of the generic name at the time of its publication. 

 " (y) Species which the author of the genus doubtfully referred to it. 

 "(f) In case a generic name without originally designated type is 

 proposed as a substitute for another generic name, with or without 

 type, the type of either, when established, becomes ipso facto, type of 

 the other. 

 " (g) If an author, in publishing a genus with more than one valid 



1 The International Code of Zoological Nomenclature as applied to Medicine. 

 Hygienic Laboratory, Bulletin No. 24. Washington: Government Printing Office, 

 1905. 8vo, pp. 50. 



