GENETIC STRAINS AND STOCKS 123 



List of symbols for designating stocks of Peromyscus 



i Barto, Mammalian Gene- Mc Dr. W. B. Mclnto; 



University of Michigan, Zoology and Entor 



Ann Arbor, Michigan. University, Columbus, Ohio. 



Bar Dr. Elizabeth Barto, Mammalian Gene- Mc Dr. W. B. Mcintosh, Department of 



tics Center, University of Michigan, Zoology and Entomoloy, Ohio State 



SUMMARY 



The material on genetic strains and stocks compiled and presented represents an 

 attempt to bring together as much information as possible on the location and status 

 of such strains and stocks. It is hoped that this compilation, although incomplete, 

 will be of value in supplying information on the location and status of laboratory 

 rodent material of medical genetic interest. 



The six common species of laboratory rodents (mice, rats, guinea pigs, hamsters, 

 rabbits, Peromyscus sp.) are listed. Other species will doubtless be added in the future 

 as their usefulness increases. 



Recommendations have been made regarding the adoption of rules for defining 

 strains and substrains, for the designation of symbols, and for the extension of the juris- 

 diction of the Committee on Standardized Genetic Nomenclature for Mice to include 

 rats, guinea pigs, hamsters, rabbits, and Peromyscus sp. 



