Ischio-urethral muscles of horse, 499

Ischium, 29

of dog, 165

of horse, 95

of ox, 131

of pig, 148

Isthmus faucium of horse, 335, 348

of ox, 385

œsophagi of dog, 428

of prostate, 493

of thyroid gland, 457

of dog, 468

of urethra masculina, 498

pharyngeal, 350