Myogale temporalis

WHIDDEN, HOWARD P., 2000, Comparative Myology of Moles and the Phylogeny of the Talpidae (Mammalia, Lipotyphla), American Museum Novitates 3294, pp. 1-53 : 6

M. temporalis ( fig. 2 )

ORIGIN: From a broad area of the dorsal and lateral skull, extending from the frontal almost to the occipital, and medially to the dorsal midline; some deeper fibers originate

from the lateral wall of the skull and from the medial surface of the zygomatic arch.

INSERTION: The insertion of this muscle is complex. The anterior fibers extend ventrally to insert on the tip and anterior margin of the coronoid process. The deep anterior fibers from the side of the skull insert on the medial surface of the coronoid process. The dorsal fibers from the midline of the skull converge to a stout insertion on the tip of the coronoid process, with some fibers running onto the medial surface. The posteriormost fibers extend anteriorly to insert along the posterior margin of the coronoid process. The fibers from the medial surface of the zygomatic arch extend anteriorly, then curve ventrally to insert on the anterior margin of the coronoid process.

REMARKS: This muscle has the same general form in Condylura , Desmana , Neurotrichus , Parascalops , Scalopus , Scapanus , Scaptonyx , Talpa , Uropsilus , and Urotrichus . In Uropsilus , the portion from the medial surface of the zygomatic arch is particularly well developed.

Figures

Fig. 2. Masticatory muscles of Parascalops.