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. 2021 Dec;71(6):1–9. doi: 10.30802/AALAS-CM-21-000061

Figure 1.

Figure 1.

The gross figures of the feet of affected frogs. Four X. tropicalis displaying nodules on the distal aspects of the digits of the hindlimbs (A-D). The bone anatomy of a normal hindlimb (E). The normal X. tropicalis hind foot is characterized by: digit 0 shown in black, metatarsals in pink, tibiae in sky blue, fibulae in blue, first phalanx (P1) in green, second phalanx (P2) in purple, third phalanx (P3) in yellow, fourth phalanx (P4) in royal blue (on digit IV). Claws are only present on digits 0, I, II, and III. Note the normal, triangular-shaped distal phalanx. Hind foot diagram demonstrating which digits are the most affected (F). Seven frogs submitted directed to Stanford Necropsy Laboratory displayed nodules on the distal end of digits I, II, III of the hindlimbs. None of the frogs displayed nodules on digits IV or V.