GUINEA-PIGS FROM ICA. 21 



TABLE 12. Young produced by the three original lea guinea-pigs or their inbred descendants. 



A. Both parents golden agouti, one only heterozygous for red-eye (indicated by *). 



Father. 



Mother. 



Golden 

 agouti 

 young. 



Black 

 young. 



501 

 *505 

 *505 

 *505 

 *533 



*533 



*502 and *503 

 509 

 510 

 530 

 509 



One young with spot of red. 



One young spotted with red and with 

 white. 



625 



Total . 



24 



B. Both parents golden agouti and heterozygous for red-eye. 



Father. 



Mother. 



Golden 

 agouti 

 young. 



Silver 

 agouti 

 young. 



Black 

 young. 



505 

 505 

 505 

 505 

 505 

 533 

 533 



502 

 503 

 504 

 507 

 605 

 529 

 540 



10 

 9 

 1 

 8 

 1 

 5 

 4 



One slightly rough. 



One black with white foot. 



One spotted with red and with white. 



One spotted with white. 



Total . 



38 



18 



C. Both parents silver agouti (red-eyed). 



Father. 



Mother. 



Silver 

 agouti 

 young. 



Father. 



Mother. 



Silver 

 agouti 

 young. 



565 

 565 

 565 

 565 

 565 

 565 



527 

 528 

 573 

 593 



601 and 604 

 607 



569 

 602 

 798 

 798 



587 and 588 

 608 

 701 

 872 



Total . 



31 



The question at once arises whether the stock obtained by me from 

 lea was really a feral stock, in origin like the animals described by Von 

 Tschudi, or whether they were present-day domesticated animals 

 concerning whose origin I was deceived. Since I did not myself see 

 the animals captured or see similar animals running at large and did 

 not even visit lea, I can make no positive statement as to their feral 

 origin, but I believe the report made to me by the agents of W. R. 

 Grace & Co., that they were caught feral in the neighborhood of lea, 

 to be correct for the following reasons: (1) The animals were placed 



