Myogale buccinatorius

WHIDDEN, HOWARD P., 2000, Comparative Myology of Moles and the Phylogeny of the Talpidae (Mammalia, Lipotyphla), American Museum Novitates 3294, pp. 1-53 : 13

M. buccinatorius

ORIGIN: From the upper jaw, just dorsal to the toothrow.

INSERTION: Along the mandible, just ventral to the toothrow.

REMARKS: This muscle has the same general form in the 11 study taxa. This muscle forms an extensive and complex mass in the cheek. The superficial fibers are transverse, and the deeper fibers are anteroventral. Fibers from M. buccinatorius extend anteriorly along both upper and lower jaws, forming M. orbicularis oris. The anterior part of M. sphincter colli profundus pars intermedia dorsalis inserts along the dorsal surface of M. buccinatorius .

M. nasolabialis superficialis ( fig. 3 ) ORIGIN: From the rostrum dorsal and anterior to the eye.

INSERTION: By two slightly separated slips, both into the upper lip.

REMARKS: This muscle was difficult to identify, but I found it in some specimens of Condylura , Neurotrichus , Parascalops , Scalopus , Scapanus , Talpa , Uropsilus , and Urotrichus . It may also be present in the other study taxa.

Figures

Fig. 3. Dorsal view of facial muscles of Parascalops; superficial muscles on left, deeper muscles on right.