Abstract
Morphometric, histological and histochemical investigations were carried out on the labial salivary glands of the one-humped camel (Camelus dromedarius). Both the supra-and infralabial glands of the camel are of the branched tubuloalveolar type and are composed of mucoserous acini capped by serous demilunes. They secrete and process neutral mucosubstances, sialomucins, hyaluronic acid and chondroitin sulphate A, B, C containing sulphomucins as well as protein radicals. The histoenzymological tests employed have detected alkaline phosphatase, acid phosphatase, adenosine triphosphatase, succinic dehydrogenase, non-specific esterases, carbonic anhydrase and amylase, but neither aminopeptidase nor tryp-sin-like enzymes.