Table 1.

Origin and insertion sites of M. dilator nasi (naris)

Author	Species	Origin	Insertion
Meinertz, 1942	Sciuris vul.	Os maxillare, rostral edge of the Foramen infraorbitale	The skin at the tip of the nose
Priddy & Brodie, 1948	Hamster	Dorsal to infraorbital foramen	Dorsal to the nostril
Rinker, 1954	Cricetinae	Medial half of the dorsal margin of the zygomatic Notch	Lateral part at the dorsal border of rhinarium
Klingener, 1964	Rodents	Aponeurosis from the outer surface of outer rim of the infraorbital foramen	Dorsal part of the nasal cartilage
Herring, 1972	Suoidea	Facial crest of the maxilla	Subcutaneous tissue on the side of the rhinarium
Ryan, 1989	Rodentia	Dorsal surface of the zygomatic plate anterior to the eye	The dorsolateral portion of nasal cartilage
Whidden, 2002	Insectivora	Anterior surface of the antorbital ridge and fossa that lies anterior to the orbit	Aponeurosis over the cartilaginous rings of the snout tip