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S. annulatus Teeth and the Development of Associated Glands
(A) Outer tooth row of the upper jaw. Note a continuous groove between the skin and the oral epithelium.
(B) Histological section of a recently hatched young. S, skin; Oe, oral epithelium; arrowheads, cavities that accommodate the mandibular teeth; asterisk, dental gland; Dl, dental lamina; M, skin mucous glands.
