Mm. intercostales externi

WHIDDEN, HOWARD P., 2000, Comparative Myology of Moles and the Phylogeny of the Talpidae (Mammalia, Lipotyphla), American Museum Novitates 3294, pp. 1-53 : 20-21

Mm. intercostales externi ( fig. 8 )

These muscles connect adjacent ribs. They form a continuous layer from the costovertebral articulations to the costal cartilages. Adjacent to the vertebral column the fibers have an anteromedial orientation, whereas adjacent to the sternum the orientation is anterolateral. Superficial slips extend from the first rib to the third and fourth ribs, skipping over the ribs in between.

REMARKS: These muscles have the same general form in the 11 study taxa.

Figures

Fig. 8. Ventral view of chest muscles of Parascalops; superficial muscles on left, deeper muscles on right.