Plate LXXXV 



Fig. i6i. Section showing sprout of a lesser sublingual in the 70 milHmeter 



embryo. Columbia Collection, No. 270, X 60, reduced to 5. 

 Fig. 162. Detail of the same, X 115, reduced to §. 



JO. Submaxillary duct. 



jj. Greater sublingual duct. 



J4. Efflorescent sprout of greater sublingual duct. 



jj. Circumflex sulcus. 



36. Lesser sublingual sprout. 



j!o. Digastric muscle. 



5/. Mylohyoid muscle. 



52. Genioglossus muscle. 



54. Inferior maxilla. 



j6. Meckel's cartilage. 



6t. Inferior dental anlage. 



70. Inferior dental nerve. 



Qd. Plica subungualis. 



