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. 



501 

 *505 

 *505 

 *505 

 *533 



*533 



Mother. 



*502 and *503 

 509 

 510 

 530 

 509 



625 



Total . 



Golden 

 agouti 

 young. 



7 

 4 

 1 

 3 



7 



24 



Black 

 young. 



One young with spot of red. 



One young spotted with red and with 

 white. 



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



Father. 



505 

 505 

 505 

 505 

 505 

 533 

 533 



Mother. 



502 

 503 

 504 

 507 

 605 

 529 

 540 



Total . 



Golden 

 agouti 

 young. 



10 

 9 

 1 

 8 

 1 

 5 

 4 



38 



Silver 

 agouti 

 young. 



4 

 2 

 4 

 5 

 1 

 1 

 1 



18 



Black 

 young. 



One slightly rough. 



One black with white foot. 



One spotted with red and with white. 



One spotted with white. 



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



Father. 



565 



565 

 565 

 565 

 565 

 565 



Mother. 



527 

 528 

 573 

 593 

 601 and 604 

 607 



Silver 

 agouti 

 young. 



5 

 8 

 1 

 2 

 3 

 1 



Father. 



569 

 602 

 79S 

 798 



Mother. 



587 and 588 

 60S 

 701 

 872 



Total. 



Silver 

 agouti 

 young. 



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 



