Fig. 13.

Thigh muscles in larval Ambystoma. (A–F) Ventral view; (G–J) dorsal view; (K–L) right lateral view. (A) Surface layer of thigh muscles (ventral view). Tendinous inscription in puboischiotibialis marked by arrow. (B) Same as in A but caudalipuboischiotibialis and ischiocaudalis exposed. Tendinous inscription in puboischiotibialis marked by arrow. (C) Same as in B but puboischiotibialis detached proximally to show anterior attachment of ischiocaudalis. (D) Same as in C but puboischiotibialis removed. (E) Same as in D but puboischiotibialis removed to show ischiofemoralis. In E₁pubotibialis is partly removed to show pubofemoralis (marked by arrow). (F) Deep muscles of thigh (ventral view). (G) Superficial level of thigh muscles (dorsal view). (H) Same as in G but dorsal trunk muscles removed to expose ilium. (I) Same as in H but posterior muscles detached proximally and partly displaced. (J) Same as in I but posterior muscles removed to show pattern of deep muscles. (K) Proximal attachment of thigh muscles (lateral view). (L) Same as in K but posterior muscles removed. Muscles in A–C slightly detached from each other.