Abstract
The sublingual glands of the spiny-tailed lizard, Uromastyx microlepis (Blandford) are of mucoserous tubular acinar type whose epithelium is lined with mucous cells. The mucoserous cells secrete and elaborate neutral mucosubstances, neuraminidase sensitive carboxylated mucins together with glycogen and protein radicals and few sulfomucins. Mucous cells secrete and elaborate neutral mucosubstances, sialomucins with considerable amount of hyaluronidase resistant sulfated mucosubstances. The mucoserous acini also contain alkaline phosphatase, acid phosphatase, adenosine triphosphatase, non-specific esterase and aminopeptidase.