Reticulum of ox, mucous membrane of, 395
of stomach of ox, 390, 392
of sheep, 408
splenic, of horse, 379
Retina of dog, 779
of horse, 745
Retractor ani muscle of dog, 432
of horse, 371
costæ muscle of horse, 242
of pig, 313
muscles of prepuce of ox, 503
oculi, 738
penis muscle of horse, 496
of ox, 503