Myogale subscapularis

WHIDDEN, HOWARD P., 2000, Comparative Myology of Moles and the Phylogeny of the Talpidae (Mammalia, Lipotyphla), American Museum Novitates 3294, pp. 1-53 : 24

M. subscapularis ( fig. 9 )

ORIGIN: From the subscapular fossa.

INSERTION: On the lesser tuberosity of the humerus, over the bicipital canal. Two tendinous bands extend down the length of the muscle to the insertion.

REMARKS: This muscle has the same general form in Parascalops , Scalopus , Scapanus , and Talpa . In Desmana , Galemys , and Uropsilus , this muscle has two heads, one originating from the subscapular fossa and the other from the axillary border of the scapula. These insert side by side on the less­ er tuberosity. In Condylura , this muscle originates only from the subscapular fossa, and it inserts on the lesser tuberosity via two slips, each with a heavy tendinous band. In Neurotrichus , Scaptonyx , and Urotrichus , this muscle originates via separate heads from the subscapular fossa and the adjacent axillary border of the scapula and teres fossa; these heads fuse to form a single insertion on the lesser tuberosity.

Deltoid Group

Figures

Fig. 9. Dorsal view of pectoral limb muscles of Parascalops.